CN2370452Y

CN2370452Y - Multipurpose calculator for teaching

Info

Publication number: CN2370452Y
Application number: CN 98240637
Authority: CN
Inventors: 陈树花
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-09-17
Filing date: 1998-09-17
Publication date: 2000-03-22
Anticipated expiration: 2008-09-17

Abstract

The utility model relates to a multipurpose calculator for teaching, which comprises a frame, calculating beads, vertical bars, a movable cross beam and a calculating zone. One end of the movable cross beam is loosely connected with the frame on the left. The calculating zone is composed of the vertical bars, numerical code blocks and operator blocks. The vertical bars are connected with the upper frame and the lower frame, and the numerical code blocks and the operator blocks are connected in series with the vertical bars. The utility model is suitable for the thinking features of young children, and is convenient for the direct viewing learning of the synthesis and the decomposition of numbers. The utility model not only can be used for learning abacus, but also can be used for demonstrating four arithmetic operations. The utility model has the characteristics of simple structure and multiple functions, and integrates interest with knowledge into integration, therefore, the utility model can be used as a teaching appliance for young children and primary school teachers.

Description

A kind of teaching multiple counter

The utility model relates to a kind of teaching aid, relates in particular to a kind of primary calculations teaching aid.

At present, common abacus only has single rechoning by the abacus function basically, and abstract arithmetic can not combine with ocular demonstration, be not suitable for children especially the child impart rudimentary knowledge to beginners study number and simple arithmetic teaching.

The purpose of this utility model just provides a kind of multiple counter of suitable child's thinking characteristic, promptly can be familiar with the composition of simple number intuitively, can learn to use rechoning by the abacus again, and the simple arithmetic of ocular demonstration.

The purpose of this utility model is achieved in that

A kind of teaching multiple counter, it comprises frame, bead, montant, and the bead string is contained on the montant, and 10 beads are arranged on each montant, it improves substantially and is: it also is provided with two moved cross beams and a computing district, wherein, an end of moved cross beam is active to be connected on the frame in left side, and the other end is a free state, the computing district is on the right side of counter, be made of montant, digital piece and operator piece, montant is connected on the upper and lower side frame, and digital piece and operator piece string are contained on the montant.

Above-mentioned teaching multiple counter, the bead on the described montant are divided into two kinds of colors, and the difference of the different number of calculation of all kinds on the adjacent montant is 1.

Above-mentioned teaching multiple counter, described digital piece is square, and four sides are marked with numeral, and four sides of described operator piece are marked with sign of operation.

According to the multiple counter that the utility model is made, be fit to child's thinking characteristic, be convenient to formation and decomposition that the child learns number intuitively, but also can learn rechoning by the abacus, learn and demonstrate corresponding arithmetic formula.Have characteristics simple in structure, diverse in function, integrate interesting, intellectual, can be used as child and grade teacher's teaching aid.

Below in conjunction with accompanying drawing the utility model is described in further detail:

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

Fig. 2 is the synoptic diagram of the utility model when using as abacus;

Synoptic diagram when Fig. 3 carries out arithmetic for the utility model.

As shown in Figure 1, montant 2 is defended tenaciously on frame 1, and bead 4 and digital piece 5 are gone here and there respectively and be contained on the montant 2, and an end of moved cross beam 3 is fixed on the frame 1, and the other end can be free movable.The left side is district directly perceived among Fig. 1; Every string bead is divided into two kinds of colors, and the difference of the bead number of all kinds on the adjacent montant is 1.Bead number sum is 10, and promptly the 1st string bead is 1 white of 9 black, and the 2nd string bead is 8 black, 2 whites, and the like to calculate when different to the 9th string be 1 black, 9 whites.The formation and the decomposition of display digit " 1-10 " so very intuitively can be resolved into " 9 " and " 1 ", " 8 " and " 2 ", " 7 " and " 3 ", " 6 " and " 4 ", " 5 " and " 5 ", " 4 " and " 6 ", " 3 " and " 7 ", " 2 " and " 8 ", " 1 " and " 9 " as numeral " 10 ".As 5 beads of every string bead are moved on to the top, the activity crossbeam horizontal on, then form the rechoning by the abacus district, as shown in Figure 2, can learn rechoning by the abacus.

The right side is the computing district among Fig. 1, is made up of 20 number code blocks, and each digital piece has 4 to indicate digital exclusive disjunction symbol respectively.1st, indicate from 0 to 10 numeral respectively on each face of the digital piece of 3 strings, 2nd, each face of the digital piece of 4 strings are marked with "+,-, * " sign of operation, each face of the digital piece of the 4th string indicates "=" number, and each face of the digital piece of the 5th, 6 strings are marked with the arithmetic result who closes from any two arrays of 0-10.As calculate " 3+7=? ", dial bead 3,7 in district directly perceived, then demonstrate formula " 3+7=10 " in the computing district, as shown in Figure 3.

Claims

1. teaching multiple counter, it comprises frame [1], bead [4], montant [2], the bead string is contained on the montant, 10 beads are arranged on each montant, it is characterized in that: it also is provided with two moved cross beams [3] and a computing district, wherein, one end of moved cross beam is active to be connected on the frame in left side, the other end is a free state, the computing district is on the right side of counter, be made of montant [2], digital piece [6] and operator piece [5], montant is connected on the upper and lower side frame, and digital piece and operator piece string are contained on the montant.

2. multiple counter according to claim 1 is characterized in that: the bead on the described montant [4] is divided into two kinds of colors, and the difference of the bead number of all kinds on the adjacent montant is 1.

3. multiple counter according to claim 2 is characterized in that: described digital piece [6] is for square, and four sides are marked with numeral, and four sides of described operator piece [5] are marked with sign of operation.