Force and Motion Probes
The new series, Uncovering Student Ideas in Physical Science- 25 Force and Motion Assessment Probes, by Page Keeley and Rand Harrington, will be out in late fall 2009. What particular concepts related to force and motion would you most like to see in this volume? Rand and I welcome your feedback as we identify and develop a set of probes. Are some ideas more problemmatic than others? What seems to be the common difficulties students (and teachers) have related to this topic?