Dallas teacher hopes to recycle e-waste from class project

As you'll find out as you read, circuit boards have 2 main groups. All green boards and brown boards. I sell the brown boards locally after picking some goodies off. The double green boards will usually run from $.50 to $4-5.00 a lb. Motherboards and cards from computer equip. have the most value but other items also have good value. I usually stock boards in banana boxes or use totes.
The brown boards have alum. heatsinks, transformers, coils, chokes, and occasionally larger IC chips I pull for a better price. Price usually runs around .10 to .20 a lb for brown boards. With enough volume it all adds up.
The electronic section can be your friend.