CN203250444U - A function image demonstrator - Google Patents

Abstract

A function image demonstrator, including a board body with a coordinate system, its technical points are: the surface of the board body is provided with crisscross chute, the intersection point of the vertical and horizontal chute is the coordinate point of the coordinate system, the chute passes through the chute The block is provided with a fixed block, and the fixed block is provided with a threading hole that can accommodate the function simulation line to pass through. The fixed blocks can be moved at any position along the vertical and horizontal chute, so that they can be moved to any coordinate point. When a certain function curve is to be represented, each fixed block can be adjusted to the selected coordinates along the vertical and horizontal chute. After fixing each fixed block at the position of each selected coordinate value, pass the function simulation line through the threading holes of each fixed block in turn to form a function curve, and use the function simulation line to represent the function image. When you want to change the function image, you can move each fixed block to the selected coordinate value after reaching it. There is no need to extract the function simulation line and re-insert it. The operation is simple and fast, which improves the teaching efficiency of teachers.

Description

A function image demonstrator

Technical field:

The utility model relates to a mathematics teaching tool, in particular to a function image demonstrator.

Background technique:

Function is an important content in mathematics teaching. Due to its abstract principle, it is difficult for students to understand, which increases the difficulty of teaching for teachers. However, there is no special teaching and demonstration equipment for the content of function in existing mathematics teaching, so it is impossible to improve teacher's teaching efficiency.

The document with the publication number CN202816216U discloses a utility model patent called the function image demonstration board, which can demonstrate the trajectory of the function through the elastic rope, without the need for the teacher to hand-paint the function image, and it is also easy for students to understand, but when changing the function trajectory The elastic cord must be taken out during the time, and then re-passed in the rubber ring representing other coordinate values, its operation is more loaded down with trivial details, and it is not convenient enough to use.

Utility model content:

The purpose of the utility model is to provide a function image demonstration instrument, which has a simple and reasonable structure design, is convenient and quick to use, saves time and effort, is convenient for teachers to teach mathematical functions, and improves students' interest in learning.

The purpose of this utility model is achieved in the following manner: the function image demonstrator includes a plate body with a coordinate system, and the technical solution adopted is that: the surface of the plate body is provided with crisscross chute, vertical and horizontal chute The intersection point is the coordinate point of the coordinate system, the chute is provided with a fixed block through the slider, and the fixed block is provided with a threading hole that can accommodate the function simulation line to pass through. the

The beneficial effects of the utility model are: the function image demonstrator, the fixed block can be moved to any position along the vertical and horizontal chute, so that it can be moved to any coordinate point, when a certain function curve is to be represented, the Each fixed block is adjusted to the position of the selected coordinate value through the slider on it along the chute laid vertically and horizontally. After fixing each fixed block at the position of each selected coordinate value, the function simulation line passes through the The threading holes of each fixed block form a function curve, and a function simulation line is used to represent a function image. When you want to change the function image, you can move each fixed block to the selected coordinate value after reaching it. There is no need to extract the function simulation line and re-enter it. The operation is simple and fast, which improves the teaching efficiency of teachers. The utility model has the advantages of simple and reasonable structural design, convenient and fast use, time-saving and labor-saving, which is convenient for teachers to teach mathematical functions and improves students' interest in learning. the

Description of drawings:

Fig. 1 is a structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the utility model in which the fixed block is installed in the horizontally laid chute. the

Detailed ways:

With reference to Fig. 1 and Fig. 2, this function image demonstrator comprises the plate body 1 with coordinate system, is characterized in that: described plate body 1 surface is provided with criss-cross chute 4, and the intersection point of vertical and horizontal chute 4 is As for the coordinate points of the coordinate system, the chute 4 is provided with a fixed block 2 through the slider 5, and the fixed block 2 is provided with a threading hole 3 that can accommodate the function simulation line 6 to pass through.

Claims (1)

1. functional image demonstrator, comprise the plate body (1) with coordinate system, it is characterized in that: described plate body (1) surface is provided with crisscross chute (4), intersection point to chute (4) is the coordinate points of coordinate system in length and breadth, chute (4) is upper to be provided with fixed block (2) by slide block (5), and fixed block (2) is provided with and can holds the through wires hole (3) that functional simulation line (6) passes.

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