Figure 2. Students directed video analysis inquiring on the inelastic collision of 2 marbles on a track. Teal trail is the right moving marble and the Red trail is the right moving marble. Model A and B were added on later by the authors for teacher professional network learning purposes

From

Video Analysis and Modeling Performance Task to Promote Becoming Like Scientists in Classrooms

Loo Kang Wee, Tze Kwang Leong

American Journal of Educational Research. 2015, 3(2), 197-207 doi:10.12691/education-3-2-13