Students work in pairs. They use two identical boards and only one kind of variable counter, for example, a green square counter named s. The teacher shows students two configurations of counters, one for each board. Task Put these configurations on your boards and find the value of the variable token for which both boards have the same value. Example
So, s = 4. In choosing a task the teacher should pay attention to the range of numbers represented on the boards, in order not to give a task that is impossible. The Method of Solving These Problems Regroup the tokens on each board. Remote at the sane time two tokens, one from each board, if they have the same value. Continue until all variable counters remain on one board and all other counters are on the other board. Also on these boards, you can sometimes halve both values or divide them by 3,5, 6, or 10. Example
So, s = 13/7. Example 2
So, s = 2. Examples
So, s = 4. Number Board index |