CN102956131A

CN102956131A - Addition and subtraction calculator for infants

Info

Publication number: CN102956131A
Application number: CN2011102379837A
Authority: CN
Inventors: 古金莲
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-18
Filing date: 2011-08-18
Publication date: 2013-03-06

Abstract

A slide rule is designed into symbolic-graphic combination and composed of two rows of natural numbers. One row of the natural numbers includes continuous fixed natural numbers from 1 to 20; and the other row of the natural numbers includes continuous natural numbers from 1 to 19 which are capable of moving leftwards and rightwards corresponding to the fixed natural numbers. Answers of addition and subtraction of numbers within 20 can be read directly by moving the slide rule. The addition and subtraction calculator is suitable for preschool infants in studying. Equations and corresponding selected answers, required to be learnt, are all arranged on a panel sequentially. Users can press keys with both left hand and right hand during operation, and the addition and subtraction calculator can emit light and make sounds.

Description

Child's Add-subtract calculator

Technical field

The slipstick figurate number is also luxuriant, and the child can be intuitively cognitive, learns by oneself plus-minus; Counter exercise right-hand man is button simultaneously, can carry out the Arbitrary Digit plus-minus in computer capacity, but luminous and sounding type.

Background technology

Existing counter can't realize that classroom instruction need not teach the teaching aid that the child can learn by oneself fully, learning aid.This counter can realize that the classroom is from religion self-study, Interest-oriented Teaching.

Summary of the invention

One, slipstick design: slipstick divides two line number words to form, and delegation is 1 to 20 consecution natural number of the tyre circle fixed. and another row is 1 to 19 consecution natural number facing to the tyre circle of fixed number move left and right.Beginning is a triangle symbol.

Two, counter face version design: following minute 6 row of face version are the addition formula.The first row is: 1+1,1+2,1+3 ... 1+9.The second row is: 2+1,2+2,2+3 ... 2+9.The third line is: 3+1,3+2,3+3 ... 3+9.So analogize, the 6th row is: 6+1,6+2,6+3 ... 6+9.Each addition formula+number representing with add character, the above puts on the number of equaling.Face version top square frame is

numeral

2,3,4,5 ... 15 consecution natural number represents the selection answer of following 6 row addition formulas.

Three, computer circuits design: the number of equaling of each addition formula and face version top square frame numeral are made a point and are touched switch, and the identical formula of the following addition total total corresponding with the top square frame is together in series, and are connected with hummer with pilot lamp again.

Description of drawings

Fig. 1: slipstick design.Fig. 2: counter face version design.Fig. 3: computer circuits design.

Embodiment

1, slipstick calculates: for example calculate 3+4: the mobile computing chi, and make triangle symbol face toward stationary digital 3, then movable digital 4 represents 3+4=7 facing to stationary digital 7; For example calculate 7-3: the mobile computing chi, make movable digital 3 facing to stationary digital 7, then triangle symbol is facing to fixing 4, table, 7-3=4.

2, counter calculates: if both hands are pinned the number of equaling and the total corresponding to top square frame of following certain addition formula simultaneously, then circuit is connected, counter meeting luminous and sounding type, and expression is calculated correct; The total of the number of equaling of following certain addition formula and top square frame is not corresponding if both hands are pinned simultaneously, and then circuit disconnects, and it is noiseless that counter is unglazed, the expression miscount.

Claims

1. slipstick design: slipstick is comprised of two row consecution natural numbers, and delegation is the natural number of tyre circle: 1,2,3.。。。。。20。This delegation is fixed number; Another row is the consecution natural number facing to the tyre circle of fixed number move left and right: beginning is a triangle symbol, then is 1,2,3.。。。。。19。

2. counter face version design: following part is the addition formula, and top square frame part numeral is the selection answer of addition formula.

Following part minute 6 row, the ordinal number of row is first addend, second addend of every delegation all is 1 to 9 consecution natural number.The first row is: 1+1,1+2,1+3,1+4.。。。。。1+9。The second row is: 2+1,2+2,2+3.。。。。。2+9。The third line is: 3+1,3+2,3+3.。。。。。3+9。So analogize, the 6th row is: 6+1,6+2,6+3.。。。。。6+9。The plus sige of each addition formula represents with add character, and the above puts on the number of equaling.The top square frame partly is 2,3,4.。。。。。15 consecution natural numbers., represent the selection answer of following addition formula.

3. the line design of counter: each addition formula represents with the number of equaling of a correspondence, the numeral of each number of equaling and top square frame is made a point touch switch.Formula and total corresponding to top square frame identical following 6 row addition totals are together in series with circuit, connect pilot lamp and honeybee device again.For example: square frame numeral 7 in top is together in series with 1+6, the 2+5 of the second row, 3+4, the 4+3 of fourth line of the third line, the 5+2 of fifth line, the 6+1 of the 6th row of following the first row, connects pilot lamp and hummer again.