Help your kids step up their math skills with the free PBS KIDS Measure Up! App. Measure Up! focuses on building kids’ (ages 3-5) measurement skills through a combination of games, videos and activities from popular PBS KIDS’ series DINOSAUR TRAIN, PEG + CAT and SID THE SCIENCE KID. The app also connects with the companion app, PBS KIDS Super Vision app , allowing parents and caregivers to track their children’s learning progress.