Planning a unit on simple machines? Save some time and energy with this collection of lessons and activities that explores how these devices are used in the real world to make life a little easier. 

To observe preservation techniques firsthand, learners dry a flower in sand and compare cucumber slices soaked in salt water for a week with slices left out to dry in the open air. Video resources (not attached) include one about mummies...

Fourth graders use their knowledge about fossils to arrange fossil pictures in sequence from oldest to youngest. They explain how fossils can be used to make inferences about past life, climate, geology, and environments and discover...

Students investigate surveys as it relates to chains and links. For this math lesson, students relate math to history and surveys done above, below and on the earths' surface. They review vocabulary pertaining to this lesson before...

Learners investigate proofs used to solve geometric problems. In this geometry lesson, students read about the history behind early geometry and learn how to write proofs correctly using two columns. The define terminology valuable to...

Students examine the first meeting between the first Spanish settlers and the native groups of the Tijuana estuary. Using a map, they trace various expeditions throughout Goat Canyon and the Spanish migration. After reading text, they...

Fourth graders act as paleontologists and attempt to figure out the environment where various fossils would have existed. They explain how fossils can be used to make inferences about past life, climate, geology, and environments.