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Geometry Learning Lab

Learn geometry the way that fits you

You're a strong student, but Clovis High's integrated Math 1-3 sequence constantly switches between algebraic manipulation and geometric reasoning — that back-and-forth is the likely friction, not the geometry itself. This lab rebuilds the Big Three core relationships as things you can move first, formalize later, with every angle and side labeled so proofs have a roadmap.

Omni Bridge Decision

Confidence 95%

Build intuition first

Manipulate shapes directly (GeoGebra-style) instead of memorizing textbook definitions.

Experience First, Formalize Later

Inquiry-based ordering (Math Medic): touch the concept, then name the rule.

Label everything

Name unknown angles and sides on every diagram — a roadmap for proofs.

Lock the Big Three

Pythagorean theorem, angle relationships, triangle congruence — the Math-3 foundation.

No Fibs — gaps accounted for. The Pedagogical Research Lab (now built) rates evidence-based study techniques against real reviews (Dunlosky et al. 2013), and the Learning Styles Lab (now built) self-assesses preferences and honestly debunks the styles-matching myth. What still doesn't exist is a stored per-student data-driven style profile, so personalization here stays rule-based on curriculum structure — not a dataset. Nothing is fabricated.

① Pythagorean Theorem

Drag the legs. Watch the hypotenuse. Predict c before you settle, then formalize.

a=3b=4c=5.00

Leg a3

Leg b4

Predict, then reveal:

② Angle Relationships

Drag the transversal. Every angle is labeled — that's your roadmap.

θ=55°125°125°55°

Transversal angle θ55

Parallel lines make the highlighted pair equal. Change θ and confirm both highlighted angles stay equal — that's the rule you'll cite in proofs.

③ Triangle Congruence

Pick a postulate, then stretch the one part it doesn't lock. Congruence holds only when enough is fixed.

a=80b=90c=70A=50°B=60°C=70°Triangle Aa=80b=108c=70A=50°B=60°C=70°Triangle B

Locked by SAS: 2 sides + included angle

Two sides and the angle between them → congruent

Stretch the free part1.2

✗ Free part changed — no longer congruent

How to use this lab (Experience First, Formalize Later)

  1. Drag first. Don't read the formula — move the sliders/points and watch what changes.
  2. Predict. Before you release, guess what the labeled value will do.
  3. Then formalize. Reveal the rule and check it against what you just saw.
  4. Label everything on your own paper the same way these diagrams do — that's your proof roadmap.

Recommended external supplements

These are real, free resources — not built or owned by this app.