Topic: Bethesda

Eratosthenes visits middle school Assessing the ability of students to work with models of the Earth

The Encyclopedia Britannica - 850 days ago
The article describes an activity program for primary education which asks students to measure the shadows of their classmates, calculate the circumference of the Earth and measure the angular separation of the two cities. Assessing the abil- ity of students to work ...

Beat the Blues

Allure - 1053 days ago
Skipping workouts, whether it's because of an injury, a hectic work schedule, or just plain exhaustion, may be hazardous to one's mental as well as physical health. And it was the most dedicated exercisers who experienced the most notable slide in mood, ...