A wealth of technology information for grades three through eight!

This new technology video not only provides clear, graphic examples of structures and mechanisms, it also teaches children in a step by step format how to safely use tools to cut, drill, and assemble the parts of a wrecking ball crane! 

Teachers and students together will learn the concepts of truss structures, levers, pulleys, inclined planes, gears, friction, and mechanical advantage. 

The concepts are reinforced using real life examples that make sense to children. 

Construction notes, tips, and teaching suggestions are included on a mini-CD.