Curated OER
Time for All Ages
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....
Curated OER
Is London Bridge Really Going to Fall Down?
Students discover what forces work together to hold up a suspension bridge. They see various bridges around the world, and learn the basic principles that enable each bridge to support itself. Groups design their own bridge, testing how...