Common Core Geometry Activities for High School

Instructor: Clio Stearns

Clio has taught education courses at the college level and has a Ph.D. in curriculum and instruction.

As a high school geometry teacher, you are probably interested in aligning your curriculum with the Common Core State Standards. This lesson gives you some activity ideas that will keep your students excited about learning.

High School Geometry and the Common Core

Geometry is an important subject in high school mathematics. When students study geometry in high school, they learn how to develop proofs and carefully explain definitions of geometric concepts. According to the Common Core State Standards, some of the most important concepts in high school geometry are:

  • Congruence
  • Similarity, right triangles and trigonometry
  • Circles
  • Using equations to express geometric properties
  • Measurement and dimension in geometry
  • Geometric models
  • Applying mathematical skills, practices and processes to the study of geometry

Instructing your students in accordance with these standards need not feel daunting or overwhelming. One way to meet these standards without resorting to drilling and rote learning is to incorporate activities into your instruction. The activities in this lesson will help your students work from their strengths and be active agents in their own geometry work. They also involve collaboration, allowing students to learn from one another.

Geometry Activities


According to Common Core State Standards, one of the biggest aspects of high school geometry is learning how to develop a careful proof. Whether your students are proving the Pythagorean theorem, disproving an axiom they do not like, or trying to develop a new theorem of their own, this activity will make proofs fun.

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