ATRACTOR

1. practice algebraic operations such as addition, subtraction, multiplication and division;

2. compare numbers using "Greater, lesser or equal";

3. play with virtual money;

4. find all the different possible combinations of objects, in "How many choices?";

5. program a virtual character to catch all the balls;

6. search for treasure;

7. learn about fractions using a cake with chocolate;

8. produce figures with symmetry;

9. "observe" the commutativity of multiplication.