Math · Geometry

Geometry

Build geometric reasoning through foundations, proof, transformations, congruence, similarity, trigonometry, polygons, circles, measurement, and three-dimensional geometry.

11 units 110 lessons Course materials under development

Course Units

Foundations of Geometry

Points, lines, planes, segments, angles, constructions, and coordinate geometry basics.

8 lessons

Logic and Proof

Inductive and deductive reasoning, conditional statements, and two-column geometric proof.

9 lessons

Parallel and Perpendicular Lines

Angle pairs, parallel line theorems, proving lines parallel, and slope relationships.

8 lessons

Transformations and Congruence

Translations, reflections, rotations, sequences of transformations, symmetry, and rigid motions.

9 lessons

Triangle Foundations

Classifying triangles, angle sum, exterior angle, triangle inequality, isosceles and equilateral triangles.

8 lessons

Triangle Congruence and Proof

SSS, SAS, ASA, AAS, HL, CPCTC, overlapping triangles, and coordinate proofs.

11 lessons

Similarity and Dilations

Ratios, proportions, dilations, similar figures, AA/SSS/SAS similarity, proportional segments, and applications.

10 lessons

Right Triangles and Trigonometry

Pythagorean Theorem, special right triangles, sine, cosine, tangent, and angles of elevation and depression.

11 lessons

Polygons and Quadrilaterals

Polygon angle sums, parallelograms, rectangles, rhombi, squares, trapezoids, kites, and coordinate proofs.

11 lessons

Circles

Central angles, arcs, chords, inscribed angles, tangents, secants, arc length, sector area, and the equation of a circle.

11 lessons

Measurement and Three-Dimensional Geometry

Area, composite figures, surface area and volume of all solids, cross sections, similar solids, and geometric probability.

13 lessons

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