Grades 9–10

Geometry

Geometry trains a different muscle: constructing an argument. Students learn to see structure in a figure, state what they know, and build a proof that another person can follow — skills that transfer directly to Algebra 2 and beyond.

Topics covered

What the course contains.

  • Logic, reasoning and proof
  • Lines, angles and parallel relationships
  • Congruence and triangle theorems
  • Similarity and right-triangle trigonometry
  • Circles, arcs and angle relationships
  • Area, surface area, volume and coordinate geometry

Learning objectives

  • Write a clear two-column or paragraph proof from given information
  • Apply congruence and similarity criteria to solve for unknowns
  • Use right-triangle trigonometry in applied problems
  • Connect coordinate algebra to geometric claims

Assessment approach

  • Warm-up reasoning questions each class
  • Proof portfolio reviewed by instructors
  • Unit checkpoints every three weeks
  • Skill-level mastery tracking

What students receive

  • Live classes plus indexed recordings
  • Daily 5-Minute Math Boost practice
  • Written proof feedback
  • Unit checkpoints
  • Parent progress reports

Questions

Geometry FAQ

Do students need Algebra 1 first?

Yes, or equivalent placement from the Math Snapshot.

How are proofs graded?

An instructor reads the reasoning and comments on it; a correct answer with broken logic does not count as mastery.

Is construction work included?

Yes, using interactive digital tools during the live class.

Looking at a different level? See the full catalog and roadmap.

Big classroom. Individual progress.

Start with your Math Snapshot.

Before you choose your next step, discover where you stand: what you already understand, where you can grow, and what to focus on next.