A few years back our Kid's pastor asked if we could do a hobby class for Kids and Ham radio.
Our objective was to show them the fun of the hobby and hopefully spark an interest. Every week was something hands on. We usually started with a little talk about what radio is and let them talk through a repeater. Next calls is hide and seek Ham Radio style using T-Hunting gear. This was always one of their favorite activities. Next we would bring out the Laser Communicator and Morse code Keys showing the the old and the new and let them talk over light and learn their name in Morse. We showed the kids Text Messaging Ham Radio Style using PSK31 and a G5RV stretched across the quad. Every time we tried we made a contact. Lastly we built Crystal Radio from a kit using about 8 parts. The kids really enjoyed our Class.