Inventions Teacher's Pack includes 12 full color readers, motor assemblies (bar magnet, foam base, magnet wire, connecting wire, battery band), generator assemblies (bulb and holder, motor, connecting wire and string), telegraph assemblies (magnet wire, iron nail, battery band, connecting wire, switch card, paper fasteners, paperclips), radio assemblies (50 feet of magnet wire, diode, earphone, paper fasteners, color coded connecting wire), 1 laminated teacher's guide.