Categories: Andrew Ellis, Ellen Foster, [Lessons]
Overview: Students will learn about simple circuits by creating a Throwie and consider possible modifications to the original design, who might want to use these objects, and different ways they could be used.
What are Throwies?
LED Throwies are an inexpensive way to add color to any ferromagnetic surface. A Throwie consists of a lithium battery, a 10mm diffused LED and a rare-earth magnet taped together.
Vocabulary: LED, Closed Circuit, Open Circuit
Challenge: Create a Throwie; Learn about expression through graffiti/public art
Resources: Throwie instructable: http://www.instructables.com/id/LED-Throwies/
and Graffiti Research Labs: http://www.graffitiresearchlab.com/blog/projects/laser-tag/
Tools: Tape, LEDs, Magnets, Batteries
Lesson Time: 50 minutes
Introduction – 5 minutes
Introduce students to the lesson and goals of today. Tell them they will be making a simple light up device with simple circuitry without soldering and thinking about how this little device might be used or modified.
Mini-Lesson – 10 minutes
Ask students what they know about Graffiti. the beginnings and purposes of graffiti and what it means to them. Possibly have them play around with Graffiti Writer. Then have them consider involving lights, projections and removable grafitti. Why? Who uses this tyupe of graffiti?
Guided Practice – 15 minutes
Show them an already made Throwie (pass around). Explain a closed circuit and how their Throwie creates a closed circuit. Show steps for making.
Activity – 5 to 10 minutes
Students will create their own Throwie and explore possibilities for modifying the throwie. They will work with other students to rethink the throwie and consider who might want to use their modification to the throwie.
Reflection – 10 minutes
Students will share with other student groups their modifications They will also record their modifications and ideas down in a journal.