NOTE
I often employ YouTube videos to illustrate concepts. These videos are appropriate for school kids, but I cannot control what else students may view on YouTube. Enjoy this site with discretion!
Contact me: dstith@londonderry.org
Latest Additions
Pop-Up Greeting
Video
Here is an OPTIONAL engineering challenge for interested students. Due Thursday, 11/05. (No extra credit of any kind is given. Students who choose to try this do so for the love of learning!)