10th Grade · Full-year course · 4 units
Geometry
Week 1 is free. Tap Week 1. The reading and the problems are on that lesson. Weeks 2–36 open with a Life Academy plan ($35/month per student or $69/month per family (up to 4 students)).
Unit 1: Foundations
Weeks 1–9Week 1Geometry undefined terms; segments, rays; distanceWeek 2Angle pairs; parallel lines & transversalsWeek 3Triangle sum; exterior angle; congruence introWeek 4Triangle congruence criteria (SSS/SAS/ASA/AAS) with proofsWeek 5CPCTC; isosceles triangle theoremsWeek 6Paragraph proofs; error analysis in student proofsWeek 7Similar triangles; proportions; indirect measurementWeek 8Similarity applications; geometric meanWeek 9Right triangle trig intro: sine/cosine/tangent
Unit 2: Building fluency
Weeks 10–18Week 10Trig applications; angles of elevation/depressionWeek 11Area of polygons; composite figuresWeek 12Geometry cumulative (proof + trig + area)Week 13Circles: chords, arcs, inscribed anglesWeek 14Circle equations; tangent segmentsWeek 15Volume/surface 3D; Cavalieri conceptualWeek 16Geometry modeling project (scale drawing)Week 17Coordinate geometry: distance, midpoint, equations of linesWeek 18Transformations; congruence via transformations
Unit 3: Depth & application
Weeks 19–27Week 19Similarity transformations; dilation proofsWeek 20Geometry midyear exam (proof-heavy)Week 21Trigonometry extension; law of sines intro liteWeek 22Law of cosines; area applicationsWeek 23Geometry cumulative problem bankWeek 24Constructions with compass/straightedge (classical)Week 25Probability geometry connections; geometric probabilityWeek 26Statistics lite in geometry contexts; normal curve previewWeek 27Geometry EOC-style practice A