Forces & free-body basics
Forces
Drag, plot, and model Newton's laws — balance forces, read F = ma graphs, and predict friction direction.
- Drag to reorder
- Plot on graphs
- Tap grids
Ten hands-on lessons across physics, biology, chemistry, and math. Drag molecules, plot graphs, fill Punnett squares, and wire circuits — then prove you understand with a visual mastery check.
10
Interactive lessons
60+
Hands-on scenes
4
Subjects
70%+
Visual interactions
Each lesson follows the same visual-first flow: manipulate, get feedback, master.
Every lesson starts with visuals you drag, tap, plot, or reorder — not passive reading.
Each scene validates your work instantly with feedback tied to what you did on screen.
A final visual checkpoint confirms you can transfer the idea — progress syncs when you sign in.
No account needed — jump in and start learning. Sign up anytime to save progress.
Forces
Drag, plot, and model Newton's laws — balance forces, read F = ma graphs, and predict friction direction.
DNA structure
Build complementary strands, model helix rungs, and apply Chargaff's rules with hands-on visual steps.
Linear equations
Place intercepts and slope points on grids, solve step-by-step, and write y = mx + b from what you see.
Genetics
Fill Punnett grids, predict 3:1 ratios, and calculate offspring probabilities for monohybrid crosses.
Electric circuits
Compare one-path series loops to parallel branches — model current, voltage, and real household wiring.
Periodic trends
Track atomic radius, ionization energy, and electronegativity across periods and groups with visual models.
Chemical bonding
Compare electron transfer and sharing, model bonding pairs, and classify bonds by electronegativity difference.
Right triangles
Plot 3-4-5 triangles on grids, build a² + b² = c² step-by-step, and model squares on each side.
Evolution
Walk through variation, struggle, and differential survival — model camouflage and fitness over generations.
Work & energy
Connect force and displacement to work, plot kinetic energy vs speed, and model energy conservation.
Start with any lesson above, or take our free diagnostic to find your personalized mastery path across every subject.