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Sequence 19and basic algebra. Therefore, the next stage of mathematics must use and develop this power of abstraction. The second… |
Sequence 18Anyone who works with adolescents knows that they have feel- ings, strong feelings, angry feelingsr loving feelings, but most… |
Sequence 494and basic algebra. Therefore, the next stage of mathematics must use and develop this power of abstraction. The second… |
Sequence 406Anyone who works with adolescents knows that they have feel- ings, strong feelings, angry feelingsr loving feelings, but most… |