Part 6:
Posing and Solving Follow-Up Problems [Begin: 34:39]
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The teacher presents two
similar problems and asks the students to use the method
just discussed to solve these problems. One problem was:
"You want to buy 20 apples and tangerines all
together for less than 2000 yen. Apples are 120 yen each
and tangerines are 70 yen each. Up to how many apples can
you buy?" He reminds the students about the
advantages of using this method and then gives the
students about 12 minutes to work individually on them.
As he walks around to assist students, he asks two
students to write their methods on the chalkboard. The
teacher completes this part of the lesson by talking
through the students work displayed on the board. |