Fetch! With Ruff Ruffman
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SEASON 1 • EPISODE 17

Fetch! With Ruff Ruffman

"Relaxin' with Ruff"

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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 Hamps
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