9th – 10th Grade

Geometry

Spatial reasoning and the art of proof.

Geometry trains a different muscle than algebra — visual thinking, logical deduction, and proof. We work with students on both procedural fluency and the kind of reasoning that pays off on SATs and beyond.

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What we cover

  • Congruence, similarity, and transformations
  • Triangles and the Pythagorean theorem
  • Circles and their properties
  • Area, surface area, and volume
  • Two-column and paragraph proofs

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