I was clearing out some files this weekend and ran across this packet from a presentation at KCTM in 2002. I had just completed my initial National Board Certification earlier that spring (still didn’t know if I had certified yet) and thought these lessons were worth sharing.
I’m not sure if you’ll be able to read the first two pages – orginal files are long gone and just by happenstance I rance across this packet. Reading through it – its almost like I was “blogging” 10 years ago – but it reminds how important reflection on your lesson will always be – how much you can learn about teaching by pausing to think about student thinking/responses. Whether you use actual geo-boards, paper/pencil or modify to www.geogebra.org – maybe they will give you some ideas for your classroom.
- Parallel & Perpendicular Investigation – use rectangle properties to find relationship with slopes
- Amusement Park – distance between 2 points (I hate using distance formula and often allow students to find slope triangle, then apply Pythagorean Theorem)
- Midpoint Investigation
- Midsegment Investigation
*I used the reinforcement tabs for students to write coordinates/label points on geo-boards. BUT don’t let them peel and stick…just leave on paper and drop over the geo-board tab.