Course Description

Geometry is a proof-based, high school level geometry course that emphasizes geometric concepts in two and three dimensions as they apply to points, lines, planes, circles, and polygons. This course is suitable for students who have completed an Algebra 1 course or equivalent, and after successful completion of Geometry, students are prepared to move onto Algebra 2.

Geometry B is meant to be taken directly after Geometry A. It covers four broad topics: quadrilaterals and polygons, circles, transformations, and three-dimensional shapes. The practice problems provided in this course range from fundamentals practice to complex proof-based problems.

Who's this course for

Age 13-16

Prerequisites

Geometry A

This course typically takes 4-7 months to complete. This depends on the student's dedication to homework, their previous experience, and the difficulty of course material. Our instructors move at the pace of the student, taking extra time to reinforce concepts as needed.


  • Course modules


  • Quadrilaterals and Other Polygons

    GEOB1 Introduction to Quadrilaterals

    GEOB2 Parallelograms

    GEOB3 Polygons


  • Circles

    GEOB4 Circumference and Area

    GEOB5 Tangents and Angles

    GEOB6 Challenge Circle Problems


  • Transformations

    GEOB7 Translations and Rotations

    GEOB8 Reflections and Dilations


  • Three-Dimensional Shapes

    GEOB9 Polyhedra

    GEOB10 Cylinders, Cones, and Spheres

Geometry is one of the most rewarding classes I teach because it really encourages students to lead their own exploration through the math curriculum.

One time I worked with a fairly shy student on Geometry. That all changed after they completed their first few proofs. It seemed like learning how to officially "prove" concepts empowered them to ask deeper questions and follow their curiosity.

Obie K., Juni instructor

Washington University in St. Louis

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