Group course
Geometry (Grades 8–10)
8 months · Live online classes · Starts July 1, 2026
$699 for the full course
- Schedule
Monday, Wednesday 6:00 PM - 7:30 PM
Denver time (MST)
Your time:
- Starts
- Jul 1, 2026
- Ends
- Apr 2, 2027
About this course
Develop a deep understanding of geometric concepts with our comprehensive Geometry course designed for students in Grades 8–10. Students learn about points, lines, angles, triangles, polygons, circles, coordinate geometry, transformations, similarity, congruence, trigonometry, area, volume, and mathematical proofs. The course emphasizes logical reasoning, problem-solving, and real-world applications through live interactive classes, weekly assignments, quizzes, and practice tests. Ideal preparation for Algebra 2, Precalculus, SAT, ACT, and higher-level mathematics.
Syllabus
What the course covers
11 units, taught in order in live classes. Tap a unit to see its topics.
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1 Foundations of geometry 4 topics
- Points, lines, planes and segments
- Measuring segments and angles
- Midpoint and distance formulas
- Constructions
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2 Reasoning and proof 3 topics
- Inductive and deductive reasoning
- Conditional statements
- Two-column and paragraph proofs
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3 Parallel and perpendicular lines 3 topics
- Angles formed by a transversal
- Proving lines parallel
- Slopes of parallel and perpendicular lines
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4 Transformations 3 topics
- Translations, reflections and rotations
- Dilations
- Symmetry and compositions of transformations
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5 Congruent triangles 3 topics
- Triangle angle sum and exterior angles
- SSS, SAS, ASA, AAS and HL
- Isosceles and equilateral triangles
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6 Relationships in triangles 2 topics
- Midsegments, bisectors, medians and altitudes
- Triangle inequalities
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7 Quadrilaterals and polygons 3 topics
- Angles of polygons
- Properties of parallelograms, rectangles, rhombuses and squares
- Trapezoids and kites
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8 Similarity 4 topics
- Ratios and proportions
- Similar polygons
- AA, SSS and SAS similarity
- Proportions in triangles
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9 Right triangles and trigonometry 4 topics
- Pythagorean theorem and its converse
- Special right triangles
- Sine, cosine and tangent
- Angles of elevation and depression
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10 Circles 4 topics
- Arcs, chords and central angles
- Inscribed angles
- Tangents and secants
- Equations of circles
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11 Area, surface area and volume 3 topics
- Area of polygons and circles
- Surface area of solids
- Volume of prisms, cylinders, pyramids, cones and spheres
By the end of the course
- Write clear geometric proofs
- Use congruence, similarity and transformations to solve problems
- Apply the Pythagorean theorem and right-triangle trigonometry
- Calculate perimeter, area, surface area and volume
- Be ready for Algebra 2, SAT geometry and Precalculus
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