This Rational or Irrational? activity & project also includes:
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Is 4 plus the square root of 2 rational or irrational? After your class has gained a basic grasp of rational and irrational numbers, use this activity to push them a little further in their understanding. Learners must identify sums and quotients as irrational or rational and justify their answers mathematically. The difficulty level is quite high, and some problems include variables.