arXiv:1408.5992
Open Educational Resources from Performance Task using Video Analysis and Modeling - Tracker and K12 science education framework
OER from Tracker performance tasks
OERTrackerPerformance Task

Research Digest
This paper frames Tracker activities as open educational resources that teachers can reuse and adapt. It is especially useful as a blueprint for turning a one-off performance task into a sharable lesson package.
Use It Tomorrow
Package each task with the video, analysis file, guiding question, expected graph, and sample explanation.
Pedagogical Move
Invite teachers to adapt the scenario while keeping the scientific practice intact.
Student Agency
Frame the task so students work like young scientists: they choose or justify the variable to test, make a prediction, collect evidence, defend a claim, and decide how to improve the model or investigation.
Discussion Prompts
- What evidence does the model, video, or activity make visible?
- Which variable should students change first, and what should they keep constant?
- What claim can students make from the evidence, and what limitation should they acknowledge?
Reveal suggested answers
- Evidence: The OER package makes the performance task, video evidence, analysis steps, modelling decisions, and reusable teacher materials visible.
- Variable: Change the scenario or video context first; keep the scientific practice, evidence requirement, and assessment criteria fixed.
- Claim: Students can claim that their model explains the observed motion, while acknowledging uncertainty and the limits of the selected video data.