FETCH! with Ruff Ruffman
Relaxin' with Ruff
TV-Y
S1 • E17 Jun 25, 2006 30mRuff 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.