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Low-Budget Electronics Projects For High School?

SciGuy writes "I am a physics teacher for 9th graders. I really want to teach them modern electronics (something beyond the light bulb and battery). My hope is for a project that: 1) Is fun 2) Teaches about circuits that are relevant to their life. 3) Doesn't rely too heavily on a black box microcontroller. Individual components would probably be better. (I realize that #2 and #3 are probably contradictory. They will already be programming in my class but I want them to understand the circuitry behind modern tech.) 4) It must be as cheap as possible. Yay, public school. Unless some of the parts can be scrounged or found at home, I would probably want to keep the project around $5." What would you build?

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  1. Tagged 'domyjobforme'? Really? by neiras · · Score: 5, Insightful

    Why is this tagged 'domyjobforme'? There's a negative connotation there.

    This is an (awesome sounding) teacher looking for suggestions on how to expose kids to something worthwhile.

    You aren't doing his job for him until you're working for his salary, on his budget, and care enough about your students to step outside the curriculum once in a while for education's sake.

    What is this, the Hipster Olympics? Do we win by looking down our noses at people?