Students practice skip counting while cooperating in a group activity.

Fourth graders discover time keeping by analyzing technological advances in history.  In this time lesson, 4th graders create and complete a KWL chart based on their research of a famous timekeeping invention, such as a sundial....

Students examine the external variables that affect a downhill skier in the quest for speed. They access websites imbedded in this plan to become ski teams competing against one another. Each team presents results of all experiments.