Relaxin' with Ruff

Fetch! with Ruff Ruffman • Season 1 • Episode 17

About this episode

Ruff decides to calm down from the stresses of running a show. The kids learn to relax with yoga and to calculate heart rate (pulses in 15 sec * 4). Next, they mathematically measure their "fear factor" at Canobie Lake Park, an amusement park in New Hampshire.