CN110751364A

CN110751364A - Method, device, medium and electronic equipment for obtaining backup teacher

Info

Publication number: CN110751364A
Application number: CN201910853277.1A
Authority: CN
Inventors: 马福龙
Original assignee: Beijing ByteDance Network Technology Co Ltd
Current assignee: Beijing ByteDance Network Technology Co Ltd
Priority date: 2019-09-10
Filing date: 2019-09-10
Publication date: 2020-02-04

Abstract

The disclosure provides a method, a device, a medium and an electronic device for obtaining a backup teacher. The method comprises the following steps: acquiring the absence information of the first course which cannot be taught by the teacher in the class; triggering and generating a backup teacher inquiring instruction based on the absence information; and retrieving a course plan data set according to the query backup teacher instruction to acquire backup teacher information for teaching the first course. The method and the system solve the problems that frequent contact is easy to make mistakes and time-consuming and low in efficiency caused by manual coordination of the backup teachers after the class teachers are absent.

Description

Method, device, medium and electronic equipment for obtaining backup teacher

Technical Field

The disclosure relates to the technical field of computers, in particular to a method, a device, a medium and electronic equipment for obtaining a backup teacher.

Background

One-to-one teaching attracts public attention and is praised because it fully addresses the individual needs of students, focuses on solving the problem of student specialization. The one-to-one teaching is a good supplement to the large class teaching.

In recent years, as related concepts of one-to-one teaching are widely accepted and pursued, the blowout situation is presented in the one-to-one personalized teaching industry, and various one-to-one education institutions such as spring bamboo shoots after rain are broken to the front of the platform.

However, since most teachers in training institutions are outside employees, the teachers often cannot arrive at the place of class before the scheduled class time for various reasons.

In order to meet the teaching requirements of students, training institutions need to coordinate the training time of teachers and students. Such work is frequently repeated and is prone to errors, and manual operation is time-consuming and inefficient.

Disclosure of Invention

This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

The present disclosure is directed to a method, an apparatus, a medium, and an electronic device for obtaining a backup teacher, which may solve at least one of the above-mentioned technical problems. The specific scheme is as follows:

according to a specific implementation manner of the present disclosure, in a first aspect, the present disclosure provides a method for obtaining a backup teacher, including:

acquiring the absence information of the first course which cannot be taught by the teacher in the class;

triggering and generating a backup teacher inquiring instruction based on the absence information;

and retrieving a course plan data set according to the query backup teacher instruction to acquire backup teacher information for teaching the first course.

According to a second aspect, the present disclosure provides an apparatus for obtaining a backup teacher, including:

the absence information acquisition unit is used for acquiring absence information of the first course which cannot be taught by the teacher in the class;

the generation instruction unit is used for triggering and generating a backup teacher query instruction based on the absence information;

and the query unit is used for retrieving the course plan data set according to the query backup teacher instruction to acquire backup teacher information for teaching the first course.

According to a third aspect, there is provided a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements a method of obtaining a backup teacher according to any one of the first aspect.

According to a fourth aspect thereof, the present disclosure provides an electronic device, comprising: one or more processors; a storage device for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement the method of obtaining a backup teacher according to any one of the first aspect.

Compared with the prior art, the scheme of the embodiment of the disclosure at least has the following beneficial effects:

Drawings

The above and other features, advantages and aspects of various embodiments of the present disclosure will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numbers refer to the same or similar elements. It should be understood that the drawings are schematic and that elements and features are not necessarily drawn to scale. In the drawings:

FIG. 1 shows a flow diagram of a method of obtaining a backup teacher in accordance with an embodiment of the present disclosure;

FIG. 2 illustrates a block diagram of elements of an apparatus for obtaining a backup teacher in accordance with an embodiment of the present disclosure;

fig. 3 shows an electronic device connection structure schematic according to an embodiment of the present disclosure.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it is to be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the disclosure are for illustration purposes only and are not intended to limit the scope of the disclosure.

It should be understood that the various steps recited in the method embodiments of the present disclosure may be performed in a different order, and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present disclosure is not limited in this respect.

The term "include" and variations thereof as used herein are open-ended, i.e., "including but not limited to". The term "based on" is "based, at least in part, on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Relevant definitions for other terms will be given in the following description.

It should be noted that the terms "first", "second", and the like in the present disclosure are only used for distinguishing different devices, modules or units, and are not used for limiting the order or interdependence relationship of the functions performed by the devices, modules or units.

It is noted that references to "a", "an", and "the" modifications in this disclosure are intended to be illustrative rather than limiting, and that those skilled in the art will recognize that "one or more" may be used unless the context clearly dictates otherwise.

The names of messages or information exchanged between devices in the embodiments of the present disclosure are for illustrative purposes only, and are not intended to limit the scope of the messages or information.

Alternative embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

A first embodiment provided by the present disclosure is an embodiment of a method for obtaining a backup teacher.

The embodiment of the present disclosure is described in detail below with reference to fig. 1, where fig. 1 is a flowchart of a method for obtaining a backup teacher according to the embodiment of the present disclosure.

Step S101, acquiring absence information of the first course which cannot be taught by the teacher in the current class.

However, since most teachers in training institutions are outside hires, the teachers often cannot arrive at the place of class before the specified class time for various reasons; or for reasons of failure to teach the lesson in the future.

Absence information, including: and the short information and the information which cannot give lessons exceed the preset short time threshold.

In order to timely and effectively acquire the absence information of the teacher on duty and timely adjust the teaching arrangement, the teacher can be conveniently served to parents and students. The embodiment of the disclosure provides a method for correspondingly acquiring absence information aiming at two application scenes of the absence information.

The application scene one:

before the step of acquiring the absence information that the teacher in class cannot teach the first course, the method further comprises the following steps:

and step S100a-11, acquiring the time that the teacher in class does not arrive after the first course preset class starting time.

And step S100a-12, judging whether the time not reached exceeds a preset time not reached threshold value.

For example, the preset underrun time threshold is set to 3 minutes.

And step S100a-13, if yes, sending absence information that the teacher in class cannot teach the first course.

For example, a clock trigger is set in the classroom teaching the first class, and the trigger time is equal to the preset underreach time threshold; the clock trigger starts to time at the preset class starting time, before the clock trigger reaches the trigger time, the clock trigger starts to time when the class teacher does not terminate, namely when the class teacher does not reach the classroom, the clock trigger sends the absence information.

Optionally, the sending the absence information that the teacher in class cannot teach the first course includes the following steps:

and step S100a-13-11, sending absence information that the teacher in class cannot teach the first course through the absence message.

Message refers to a way of interaction and communication between software objects

The absence message is a message including absence information that the teacher in class cannot teach the first course. For long-range communications, an absence message is a packet encapsulating the absence message in a communication protocol.

The step can realize the real-time sending of the absence information, thereby improving the timeliness of the processing of the absence information.

and S100a-13-21, storing the absence information that the teacher in class cannot teach the first course into the course planning data set.

A data set for centrally storing and managing a collection of data, comprising: a data table, a formulation file, or a text file of a database.

A curriculum planning dataset is a pre-arranged curriculum scheduling dataset that contains a calendar. Saving the absence information in the course planning dataset improves the reliability of processing the absence information.

Therefore, the step of acquiring the absence information of the first course which cannot be taught by the teacher in the current class comprises the following steps:

and S101-11, acquiring absence information of the first course which cannot be taught by the teacher in the current class from the course planning data set.

The absence information may be obtained by periodically polling the course plan dataset.

Application scenario two:

and S100b-21, acquiring the information that the teacher in the class cannot give lessons before the preset lesson-opening time of the first class.

Here, the preset lesson opening time may be a few minutes earlier than the preset lesson opening time or a few days earlier than the preset lesson opening time.

And S100b-22, saving the absence information into the course planning data set based on the information incapable of giving lessons.

The absence information stored in the course plan dataset may ensure that the absence information for a course is queried at any time before the first course begins. So as to facilitate the arrangement of a backup teacher to replace the course at any time.

Further, in step S100b-31, the absence information of the first course in the course planning data set is periodically queried according to a preset polling time.

And S100b-32, if the absence information is acquired, sending out the prompting information of the absence information.

The absence information is guaranteed not to be omitted before the first course starts through an automatic reminding mode.

Further, the step of acquiring the absence information of the first course which cannot be taught by the teacher in the class includes the following steps:

and S101-21, acquiring absence information of the first course which cannot be taught by the teacher in the current course from the course planning data set.

The absence information can be timely and effectively acquired through the application of the two application scenes.

Furthermore, the method comprises the following steps:

and step S100c, acquiring information of a backup teacher before the first course is preset to start a lesson, and storing the information into the course planning data set.

When the backup teacher may teach the first course during the session of the first course, the backup teacher may register backup teacher information and save it in the course planning dataset. So that the first lesson can be taught in a replacement.

And step S102, generating a backup teacher inquiring instruction based on the absence information trigger.

If the course plan dataset is a data table in a database, e.g., a zset data table in a database redis, then the query-backup instructor instruction is an SQL query statement.

And step S103, retrieving a course plan data set according to the query backup teacher instruction to acquire backup teacher information of the first course.

If no backup teacher information is registered in the lesson planning dataset, the backup teacher information is null information.

Optionally, the backup teacher information includes: backup teacher name, backup teacher location information, and vehicle information.

After retrieving the course plan dataset according to the query backup teacher instruction to acquire backup teacher information for teaching the first course, the method further comprises the following steps:

and step S104, acquiring shortest path information according to the backup teacher position information, the preset teaching place of the first course and the geographic information.

And step S105, determining the priority of the backup teacher names based on the shortest path information and the vehicle information.

The priority order of the first course taught by the backup teacher is obtained by utilizing the backup teacher information and the geographic information, so that the first course is guaranteed to be smoothly carried out, and the learning experience of parents and students is improved.

Optionally, when the absence information is the non-arrival information exceeding the preset non-arrival time threshold, the geographic information further includes real-time traffic information. The actual time of the backup teacher arriving at the preset teaching place is calculated through the real-time road condition information, so that the validity of the priority sequence of the names of the backup teacher can be further improved.

Optionally, the backup teacher information further includes: contact information of the backup teacher.

The determining a priority order of backup teacher names based on the shortest path information and vehicle information includes:

and step S105-1, determining the priority of the names of the backup teachers and corresponding contact information based on the shortest path information and the vehicle information.

The step can facilitate customer service personnel to timely contact the backup teacher according to the priority of the names of the backup teachers.

The method and the device solve the problems that frequent contact is easy to make mistakes and time consumption is low due to the fact that a teacher in class manually coordinates a backup teacher after the absence course.

Corresponding to the first embodiment provided by the disclosure, the disclosure also provides a second embodiment, namely a device for acquiring a backup teacher. Since the second embodiment is basically similar to the first embodiment, the description is simple, and the relevant portions should be referred to the corresponding description of the first embodiment. The device embodiments described below are merely illustrative.

Fig. 2 shows an embodiment of an apparatus for obtaining a backup teacher provided by the present disclosure. Fig. 2 is a block diagram of units of an apparatus for obtaining a backup teacher according to an embodiment of the present disclosure.

Referring to fig. 2, the present disclosure provides an apparatus for obtaining a backup teacher, including: the system comprises an acquiring absence information unit 201, a generating instruction unit 202 and a query unit 203.

An acquiring absence information unit 201, configured to acquire absence information that a teacher in the current class cannot teach the first class;

a generation instruction unit 202, configured to trigger generation of a query backup teacher instruction based on the absence information;

and the query unit 203 is used for retrieving the course plan data set according to the query backup teacher instruction to acquire backup teacher information for teaching the first course.

Optionally, in the apparatus, the apparatus further includes: acquiring a missing information unit;

in the unit of acquiring unacquired information, the method includes:

the system comprises a first class-starting time acquisition subunit, a second class-starting time acquisition subunit and a third class-starting time acquisition subunit, wherein the first class-starting time acquisition subunit is used for acquiring the first class-starting time of a teacher in the class;

a time-out subunit, configured to determine whether the time out exceeds a preset time-out threshold;

and the sending subunit is used for sending the absence information that the teacher in class cannot teach the first course if the output result of the time missing judgment subunit is yes.

Optionally, the sending subunit includes:

and the first preservation absence information subunit is used for preserving the absence information of the first course which cannot be taught by the teacher in class into the course planning data set.

Optionally, in the apparatus, the apparatus further includes: saving the absence information unit;

in the save absence information unit, the method includes:

the acquisition of the information unable to give lessons subunit is used for acquiring the information unable to give lessons of the teacher in the current class before the preset lesson opening time of the first class;

and the second absence information saving subunit is used for saving the absence information into the course planning data set based on the information which cannot be taught.

Optionally, the obtaining absence information unit 201 includes:

and the acquiring absence information subunit is used for acquiring the absence information of the first course which cannot be taught by the teacher in the current class from the course planning data set.

Optionally, the backup teacher information includes: backup teacher name, backup teacher location information, and vehicle information;

in the apparatus, further comprising: determining a sequence unit;

in the determining order unit, the method includes:

the shortest path information obtaining subunit is used for obtaining shortest path information according to the backup teacher position information, the preset teaching place of the first course and the geographic information;

and the determining sequence subunit is used for determining the priority sequence of the backup teacher names based on the shortest path information and the vehicle information.

Optionally, the apparatus further comprises:

and the storage backup teacher information unit is used for acquiring backup teacher information before the first course presets the lesson starting time and storing the course plan data set.

The present disclosure provides a third embodiment, that is, an electronic device, configured to provide a method for obtaining a teacher backup, where the electronic device includes: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the content of the first and second substances,

the memory stores instructions executable by the one processor to cause the at least one processor to perform the method of obtaining a teacher-backed solution as described in the first embodiment.

The disclosed embodiments provide a fourth embodiment, which is a computer storage medium for obtaining a backup teacher, the computer storage medium storing computer-executable instructions, the computer-executable instructions being capable of executing the method for obtaining a backup teacher as described in the first embodiment.

Referring now to FIG. 3, shown is a schematic diagram of an electronic device suitable for use in implementing embodiments of the present disclosure. The terminal device in the embodiments of the present disclosure may include, but is not limited to, a mobile terminal such as a mobile phone, a notebook computer, a digital broadcast receiver, a PDA (personal digital assistant), a PAD (tablet computer), a PMP (portable multimedia player), a vehicle terminal (e.g., a car navigation terminal), and the like, and a stationary terminal such as a digital TV, a desktop computer, and the like. The electronic device shown in fig. 3 is only an example, and should not bring any limitation to the functions and the scope of use of the embodiments of the present disclosure.

As shown in fig. 3, the electronic device may include a processing device (e.g., a central processing unit, a graphics processor, etc.) 301 that may perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM)302 or a program loaded from a storage device 308 into a Random Access Memory (RAM) 303. In the RAM 303, various programs and data necessary for the operation of the electronic apparatus are also stored. The processing device 301, the ROM 302, and the RAM 303 are connected to each other via a bus 304. An input/output (I/O) interface 305 is also connected to bus 304.

Generally, the following devices may be connected to the I/O interface 305: input devices 306 including, for example, a touch screen, touch pad, keyboard, mouse, camera, microphone, accelerometer, gyroscope, etc.; an output device 307 including, for example, a Liquid Crystal Display (LCD), a speaker, a vibrator, and the like; storage devices 308 including, for example, magnetic tape, hard disk, etc.; and a communication device 309. The communication means 309 may allow the electronic device to communicate wirelessly or by wire with other devices to exchange data. While fig. 3 illustrates an electronic device having various means, it is to be understood that not all illustrated means are required to be implemented or provided. More or fewer devices may alternatively be implemented or provided.

In particular, according to an embodiment of the present disclosure, the processes described above with reference to the flowcharts may be implemented as computer software programs. For example, embodiments of the present disclosure include a computer program product comprising a computer program carried on a non-transitory computer readable medium, the computer program containing program code for performing the method illustrated by the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication means 309, or installed from the storage means 308, or installed from the ROM 302. The computer program, when executed by the processing device 301, performs the above-described functions defined in the methods of the embodiments of the present disclosure.

It should be noted that the computer readable medium in the present disclosure can be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present disclosure, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In contrast, in the present disclosure, a computer readable signal medium may comprise a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: electrical wires, optical cables, RF (radio frequency), etc., or any suitable combination of the foregoing.

In some embodiments, the clients, servers may communicate using any currently known or future developed network protocol, such as HTTP (hypertext transfer protocol), and may be interconnected with any form or medium of digital data communication (e.g., a communications network). Examples of communication networks include a local area network ("LAN"), a wide area network ("WAN"), the Internet (e.g., the Internet), and peer-to-peer networks (e.g., ad hoc peer-to-peer networks), as well as any currently known or future developed network.

The computer readable medium may be embodied in the electronic device; or may exist separately without being assembled into the electronic device.

Computer program code for carrying out operations for the present disclosure may be written in any combination of one or more programming languages, including but not limited to an object oriented programming language such as Java, Smalltalk, C + +, and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider).

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

The units described in the embodiments of the present disclosure may be implemented by software or hardware. Where the name of an element does not in some cases constitute a limitation on the element itself.

The functions described herein above may be performed, at least in part, by one or more hardware logic components. For example, without limitation, exemplary types of hardware logic components that may be used include: field Programmable Gate Arrays (FPGAs), Application Specific Integrated Circuits (ASICs), Application Specific Standard Products (ASSPs), systems on a chip (SOCs), Complex Programmable Logic Devices (CPLDs), and the like.

In the context of this disclosure, a machine-readable medium may be a tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. The machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of a machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

The foregoing description is only exemplary of the preferred embodiments of the disclosure and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other embodiments in which any combination of the features described above or their equivalents does not depart from the spirit of the disclosure. For example, the above features and (but not limited to) the features disclosed in this disclosure having similar functions are replaced with each other to form the technical solution.

Further, while operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order. Under certain circumstances, multitasking and parallel processing may be advantageous. Likewise, while several specific implementation details are included in the above discussion, these should not be construed as limitations on the scope of the disclosure. Certain features that are described in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable subcombination.

Although the subject matter has been described in language specific to structural features and/or methodological acts, it is to be understood that the subject matter defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.

Claims

1. A method for obtaining a backup teacher, comprising:

2. The method of claim 1, further comprising, prior to said obtaining absence information that the teacher in class cannot teach the first class:

acquiring the non-arrival time of the teacher in the class after the first course is preset with the class-opening time;

judging whether the time not reached exceeds a preset time not reached threshold value;

and if so, sending the absence information that the teacher in class cannot teach the first course.

3. The method of claim 2, wherein sending the absence information that the teacher in class cannot teach the first lesson comprises:

and saving the absence information into the course plan data set.

4. The method of claim 1, further comprising, prior to said obtaining absence information that the teacher in class cannot teach the first class:

acquiring the information that the teacher in the current class cannot give lessons before the first class preset lesson-opening time;

and saving the absence information into the course plan data set based on the information which cannot be taught.

5. The method of any one of claims 3 or 4, wherein the obtaining of absence information for the first class that the teacher in class cannot teach comprises:

and acquiring absence information of the first course which cannot be taught by the teacher in the class from the course planning data set.

6. The method of claim 1, wherein the backup teacher information comprises: backup teacher name, backup teacher location information, and vehicle information;

after retrieving a course plan dataset according to the query backup teacher instruction to acquire backup teacher information for teaching the first course, the method further comprises the following steps:

acquiring shortest path information according to the backup teacher position information, the preset teaching place of the first course and the geographic information;

determining a priority order of backup teacher names based on the shortest path information and vehicle information.

7. The method of claim 1, further comprising:

and before the first course presets the class-opening time, obtaining the information of a backup teacher, and storing the information of the backup teacher into the course plan data set.

8. An apparatus for obtaining a backup teacher, comprising:

9. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 7.

10. An electronic device, comprising:

one or more processors;

storage means for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to carry out the method of any one of claims 1 to 7.