One of my favorite math tools to use is the CBR (Calculator Based Ranger)! If you've never used one, these are motion detectors, timers, and much more. This particular day, we created graphs involving distance and time. Students had to create graphs that looked like plateaus, two mountains with different peaks, and letters. I follow this activity up with a worksheet of interpreting graphs of different scenarios, such as graphing speed vs. time in climbing up a slide. Love, love, love this! Texas Instruments produces excellent activity books to use with the CBRs! The next day we looked at the bounce of a ball in "Curve Ball".
