CN2183594Y

CN2183594Y - Checking computation device for use in arithmetic

Info

Publication number: CN2183594Y
Application number: CN 93235387
Authority: CN
Inventors: 申健明
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-28
Filing date: 1993-12-28
Publication date: 1994-11-23
Anticipated expiration: 2003-12-28

Abstract

The utility model relates to a computation checking device for use in arithmetic. The utility model is particularly suitable for preschool children to learn operations of addition and subtraction which are within ten. The utility model is composed of 11 blocks of formula cards and a computation checking tool, wherein, formulas are arranged at the front side of each of the formula cards, the back side of each of the formula cards is provided with a metal plate both ends of which are provided with contacts, and the computation checking tool is composed of a slot, a key switch, a sound circuit, and an acoustooptic element. The utility model has the advantages of simple structure and convenient use, inspiring children's learning desire in a better manner.

Description

Checking computation device for use in arithmetic

The utility model belongs to a kind of assisted learning apparatus of arithmetical operation, be particularly suitable for the preschool child learn 10 with interiorly add, subtraction uses.

The preschool child is because the age is little, and the understanding of the notion of logarithm, number is also very fuzzy, thereby the study signed magnitude arithmetic(al) tends to feel dry as dust and be difficult to cultivate learning interest that thereby results of learning are often not good enough.

The purpose of this utility model is the psychological characteristics according to the preschool child, designs a kind of aid of arithmetic study, and residence is learned in pleasure, in the hope of having cultivated its learning interest as early as possible, improves the quality of teaching.

Major technique measure of the present utility model is as follows:

A kind of arithmetic check device, form by 11 formula cards and verifier two parts, the formula jig has front and back, formula is shown in its front, its back side respectively is provided with a sheet metal, respectively there is a contact at the two ends of sheet metal, the sheet metal position of 11 formula card backsides with its front formula result value size from left to right (or from right to left) stagger in regular turn; Verifier is by slot, keyswitch K ₀-K ₁₀Phonation circuit IC and sound, optical element are formed, one side of slot is a strip metal plate, another side is 11 contacts, these 11 contacts are electrically connected with keyswitch K0-K10 respectively, one end of the trigger end of phonation circuit IC and capacitor C joins, and the other end of capacitor C is electrically connected with strip metal plate, and the output terminal of phonation circuit IC connects sound, optical element respectively.

When a certain formula card is inserted the slot of verifier, the sheet metal of formula card backside will be connected with the some switches among the keyswitch K0-K10, at this moment, if press this keyswitch, power supply just is switched on, and power supply will be connected by the trigger end of capacitor C and phonation circuit IC, and phonation circuit is promptly worked under the effect of capacitor C charging current, thereby output signal makes sound, optical element send sound and light signal, and prompting user operation result is correct.If push the wrong keyswitch, circuit can not form the loop and does not work, expression operation result mistake.

The utility model is owing to adopt technique scheme, thereby simple in structure, easy to use, with low cost, if suitably designing aspect sound, the light prompting again according to psychological characteristic of children, will make children feel more interest, learn in pleasure, can promote its results of learning preferably thereby reside.

Following accompanying drawing provides an embodiment of the present utility model:

Fig. 1 is a formula card front schematic view

Fig. 2 is a formula card backside synoptic diagram

Fig. 3 is a formula card backside sheet metal arrangement position synoptic diagram

Fig. 4 is the verifier electrical schematic diagram

The embodiment that provides below in conjunction with accompanying drawing further describes the utility model:

A kind of arithmetic check device, form by 11 tensor calculus formula cards and verifier, the formula jig has front and back, formula is shown in its front, its back side respectively is provided with a sheet metal 1, the sheet metal position that respectively there are 2,11 formula card backsides in a contact at the two ends of sheet metal 1 with its front formula result value size from left to right (or from right to left) stagger in regular turn; Verifier is by slot 3, keyswitch K0-K10, and phonation circuit IC and sound, optical element are formed, Yi Bian slot 3 is a strip metal plate 4.Another side is 11 contacts 5, these 11 contacts are electrically connected with keyswitch K0-K10 respectively, one end of the trigger end of phonation circuit IC and capacitor C joins, and the other end of capacitor C is electrically connected with strip metal plate 4, and the output terminal of phonation circuit IC connects sound, optical element respectively.

Formula on the formula card can be write as with the sticking paper of adhesive sticker, and is pasted on formula card front, can improve the dirigibility of formula card so greatly, and simultaneously, same relatively operation result can provide a plurality of different formulas.

Phonation circuit IC in the verifier can select music integrated circuit CW9300 or speech IC for use.Its sounding component can be selected piezoelectric ceramic piece etc. for use in sound, the optical element, and light-emitting component can be selected light emitting diode etc. for use.

Claims

1, a kind of arithmetic check device is characterized in that:

A, it is made up of 11 formula cards and verifier;

B, formula jig have front and back, formula is shown in its front, its back side respectively is provided with a sheet metal (1), and respectively there is a contact (2) at the two ends of derby (1), the sheet metal position of 11 formula card backsides with its front formula result value size from left to right (or from right to left) stagger in regular turn;

C, verifier are by slot (3), keyswitch K ₀-K ₁₀, phonation circuit IC and sound, optical element form, slot (3) is Yi Bian be a strip metal plate (4), another side is 11 contacts (5), these 11 contacts respectively with keyswitch K ₀-K ₁₀Be electrically connected, an end of the trigger end of phonation circuit IC and capacitor C joins, and the other end of capacitor C is electrically connected with strip metal plate (4), and the output terminal of phonation circuit IC connects sound, optical element respectively.

2, arithmetic check device according to claim 1 is characterized in that formula is write as with the sticking paper of adhesive sticker, and is pasted on that formula card front forms.

3, arithmetic check device according to claim 1 and 2 is characterized in that phonation circuit IC can select music integrated circuit or speech IC for use.