For the NASA Summer of Innovation, NASA Aerospace Education Specialists have developed six 30-hour thematic units of NASA content.  read more »

IYA Discovery Guides  read more »

Unusual mathematics problems in space science and astronomy. http://spacemath.gsfc.nasa.gov/  read more »

NASA has many interactive media and video clips available.

Here's a few to check out:

Cassini at Saturn Interactive Explorer http://saturn.jpl.nasa.gov/multimedia/CASSIE/  read more »

Many of us live in a world of urban constellations, unable to see the stellar constellations a moderately dark sky would provide.  read more »

Two sites that provide web-based videos each month about what is up in the sky.

Cover & Title Page
Acknowledgements & Table of Contents
Overview
- About Exploring Meteorite Mysteries
- About the Meteorite Disk
- About the Slide Set
- Science Process Skills  read more »

About This Book
About the Lunar Sample Disk
About the Slide Set
View the Exploring the Moon Slide Set
Activity Matrices  read more »

Teacher's Guide — The Moon: Gateway to the Solar System

This is a good list of resources for teachers.

List of activities.
#10 is really good for size and scale images of planets.