# 乘法除法學習板（２件）2pcs a set Multiplication and Unit division board

\$300.00

## 描述

（1）老師先出題目：如6*6=？

（2）將卡片 ‘6’ 插入插槽，紅色籌碼放在頂部數字 ‘6’ 上

（3）讓學生將紅色珠子依次從左到右共放入6排，每排6個珠子

（4）清點所有放入的珠子得出運算結果

（1）同樣先出一條題目，如8除4=？

（2）取出8個綠色珠珠代表被除數8

（3）將四個小人放入頂部代表除數

（4）讓學生將8個珠子平均分給4個小人

（5）此時每個小人都有相同的珠子，提醒學生看左邊的數字並的得到答案

 Multiplication Board Materials – A perforated board with 100 holes in rows of 10 arranged in a square. At the left side of the board is a window with a slot for the insertion of the cards. – A red, wooden disc. – Tables of multiplication – A set of cards from 1 to 10 – Charts 1 and 2 Chart 1 Chart 2 Presentation Show the child the material and have him bring it to the table. Show the child the numbers along the top of the board. Tell the child, “These numbers tell us how many times to take a number.” Show the child how to slide the card (4) into the slot on the side of the board. Tell the child, “This tells us we will be doing the table of 4.” Place the little red disc above the 1 at the top of the board. Say, “This tells us we need to take 4 one times. Using the red beads, place 4 one times in a vertical line. Have the child count how many beads there are on the board. Tell the child, “4 x 1 is 4” Have the child write the answer on the paper next to the equation. Move the disc over above the 2. Tell the child, “We now need 4 two times. But we already have 4 one times.” Have the child place the red beads in a vertical line next to the first four. Have the child count the total number of beads on the board. Say, “4 x 2 is 8”. Repeat in this manner. When the child reaches 4 x 4, have him say the equation with you. If the child is making the table with ease, when he reaches 4 x 8 show him that 4 x 7 was 28. Count from 28 up four more. Repeat in this way until he has finished the board. Have the child read all of the equations and answers written on the piece of paper. The child can check his work on Multiplication Chart 1. Exercice The child, over time, does each of the tables in the same way. He can then make a booklet of the tables. Purpose Direct To give practice in multiplication leading to the memorization of the essential multiplication tables. Control of Error The child checks his work with Chart 1.