Finish or launch your unit on the solar system with a jigsaw project covering major celestial concepts such as the Milky Way Galaxy, asteroids, meteors, comets, Earth's moon, and, of course, all the planets. Learners start by...

What is most useful about this lesson plan is the "Student Explanet Worksheet," a set of instructions for collaborative groups to use to collect information about an assigned planet. After students have researched and organized their...