Oh, no! An asteroid is on a collision course with Earth!. Class members must rise to the challenge of designing a shelter that will protect people from the impact and permit them to live in this shelter for one year. In this first lesson...

First graders classify plants and animals based on their characteristics using examples from the westward journey of Lewis and Clark and the Corps of Discovery.

Learners, in groups, examine the use of artifacts and fossils to study people, plants and animals from the past.