Step 1: Have each group create one math problem that uses statistics about the rain forest or rain forest animals and requires using the particular math skill(s) you have been learning. (See below for some samples.)
Step 2. Have each group make a line drawing of a rain forest animal (the animal should be different from the animal they  made up the problem about). (Alternatively, use pre-printed handouts of animal line-drawings.)
Step 3: Have each group write the answer to their math problem (with large numbers) on the animal they drew, then post the drawings on a designated area on the wall/board.
Step 4: Copy and number the math problems created by the groups, then distribute one copy to each group.
Step 5:  Have each group solve the problems matching them with the posted animals that have the corresponding answers. Step 6: Review the answers and give each group one of the animal drawings to color.

Note: Aid students as they are creating their problems and check their problems for logic and accuracy. Encourage them to make their statements/problems as scientifically accurate as possible.