From PBS KIDS: The Clown Problem: Peg and Cat help Mac achieve his dream of being a clown in the circus, by teaching him how funny it can be when things are exactly the wrong size. Primary Learning Goal: Adding 1. Secondary Learning Goal: Size correspondence. The Ninja Problem: Peg and Cat help their young Ninja-wannabe friend Aki find the fifteen missing cherry blossom trees by using Ninja skills and math skills. Primary Learning Goal: Subtraction. Secondary Learning Goal: Counting to 15.
—Anonymous