Japanese Lesson 2
Algebraic Inequalities

Part 2: Posing the Problem [Begin: 07:00]






The teacher introduces the main problem for the day by saying, "I will have everyone use their heads and think a little, okay? Until now, we’ve just done calculation practice, but today you will have to use your heads a little." The teacher then puts up a poster with the problem: There are two different types of cakes, one costing 230 yen and the other, 200 yen. You want to buy 10 cakes, but you don’t want to pay more than 2100 yen. How many of each type should you buy? The cakes costing 230 yen "look more delicious." The teacher clarifies the problem by restating it in several ways, and then asks the students to work on the problem individually, for about three minutes, using whatever methods they would like.
 

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