It's good in class to spend some time talking...and walking. We had a circle discussion on stem cells and stem cell research. We shared ideas, debated the hot topics and asked questions.
We also get up and get moving. When learning about energy and the energy found in foods, we did a lab to see how many flights of stairs one would have to walk in order to "burn" off the Calories in a snack they just consumed. See...I told them their homework was to bring a snack to class. One they would get to eat. After they ate it, I told them were going to now "burn" it off :)