Observe
Start with authentic motion: a bounce, a throw, a collision or an oscillation that students can see and revisit frame by frame.
From Motion to Meaning
Video analysis turns everyday movement into evidence students can question, measure and explain.
A laboratory already in every pocket
Tracker connects familiar video with the representational tools of physics. Students can move repeatedly between the event they filmed, the measurements they made, the graph they produced and the explanation they are ready to defend.
Measure
Calibrate scale, set axes and mark positions so pixels and frames become quantities with physical meaning and units.
Explain
Coordinate video, graphs, vectors and models to identify patterns, test assumptions and explain what the evidence supports.
01Film
Record a phenomenon worth investigating.
02Mark
Identify positions and define the measurement system.
03Graph
Reveal patterns, rates of change and uncertainty.
04Model
Compare predictions directly with real-world motion.
05Discuss
Argue from evidence and refine the explanation.
The pedagogical power is in the connections
Real phenomena become investigable
Students do not have to begin with an idealised diagram. They can film motion from their own classroom, home or playground, decide what matters, and confront the messiness of real evidence.
Representations remain synchronised
A marked position belongs simultaneously to a video frame, a time value, a coordinate, a table row and a graph point. Moving among those representations helps students connect physical events with mathematical descriptions.
Models face visible tests
Tracker can overlay kinematic and dynamic particle models on the original video. A prediction is therefore not only an equation—it can be compared directly with what happened in the world.
Evidence becomes discussable
Different choices of scale, origin, frame interval or marked position produce differences that students can inspect. That creates a natural reason to discuss uncertainty, defend decisions and revise explanations.
A well-designed Tracker task can move students through questioning, planning an investigation, analysing data, modelling, constructing explanations and arguing from evidence—not merely through clicking points.
Why a touch-first variant matters
Tracker Online preserves a powerful desktop interface in the browser. The goal of Tracker Student Mobile is different: retain the same scientific engine while making the essential learning journey practical on the phones and tablets students already carry.
- Broader access. Reduce dependence on a computer laboratory for introductory analysis.
- Field experiments. Film and analyse motion where it naturally occurs.
- Immediate feedback. Let students inspect a trajectory while the experiment is still in front of them.
- Less interface friction. Spend more attention on measurement choices, patterns and explanations.
ProjectNew trackMeasureAxesMore
Scientific depth stays
Calibration, coordinate systems, tracks, graphs, tables and models remain part of the same Tracker workflow.
Tools appear when needed
Project, track, measurement and axes commands are grouped; the complete menu tree remains available under More.
Touch becomes first-class input
Large targets, direct marking and handle dragging replace desktop-only assumptions about hover, Shift-click and tiny controls.
Sources and further reading
- Tracker Video Analysis and Modeling Tool—official feature overview and project information.
- Tracker Help: Getting Started—the complete video-analysis sequence from opening a video through calibration, tracking, plotting and saving.
- Open Source Physics: Tracker—video modelling and direct comparison between particle models and real-world motion.
- Video Analysis and Modeling Performance Task to promote becoming like scientists in classrooms—a Singapore secondary-school account connecting Tracker tasks with scientific practices.
Start with a question worth measuring
Film a motion, mark the evidence, and let the graph begin the conversation.