Design Time/A Prize Surprise - S3.E9

Sally is trying to make a vase for her mother but each one she tries falls over. Cat takes them to Blueprintia and they discover what they can learn by designing before building. / The kids are creating a game that involves "fishing" for prizes, but they can't "catch" any of the prizes. The Cat takes them to an arcade where they discover what will and won't be attracted to a magnet.