THE ADDITION AND SUBTRACTION TEACHING TOOLS FOR CHILDREN

摘要

This devise is a problem indicated a number of issues that are inserted between the upper and lower signs signs with number cards plus Addition and subtraction of symbolic computation by removable sign on the top, select the answer card number is indicated for the visually check the issue number and operation symbols through the display of an infant was transported around the upper signs Mnemonic card is marked and correct and it is possible to easily learn the operation of subtraction, an infant can easily understand the number of addition and subtraction, to an infant addition subtraction learning precinct that can improve the effective computing power of addition and subtraction. ; according to the present invention is to study infant addition subtraction precinct, the lower sign 110 above the top surface is exposed to the outside pivotably sign 120 is provided with a plus sign subtraction of the lower plate 110 on one side of (100 ), and; Lower sign 110 and the upper sign of the addition subtraction plate 100 (120) are inserted on both sides between the upper sign 120 first issues a number card indicating the number of issues at the other side and each upper portion (210) and The second problem card number 220 is a number having a problem card (200) and; Lower sign 110 and the upper sign 120 first issues a number card between one side and the other side of the inserted card issue number 200, 210 and the second issue of the card number addition subtraction plate 100 (220) is inserted between the operation symbols card 300 to display the operation symbols in the addition and subtraction; The number is marked on the upper surface of the upper sign addition subtraction plate 100 by selecting the correct number was determined by the issue number card 200 and the Mnemonic card 300 (120) answers to removable card on one side (400 ) that designed the sign consisting of a lower and an upper problem a number of issues indicated number card inserted between the sign and the addition and subtraction of Mnemonic Mnemonic card before and after the transfer is indicated by the display of the infant signs of upper plate Addition Subtraction Visually check for problems with the numbers and operation symbols, and can be easily learn the operation of addition and subtraction, by selecting the answer card number is indicated for the answers to the upper removable signs, the infant can easily add and subtract understood, and there is an effect that it is possible to improve the ability of the addition and subtraction operation effectively.