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Exploring Triangles

Students display their geometry genius by creating a poster of popping triangles.

  • Grade 2
    Grade 3
    Grade 4
  • 30 to 60 minutes
  • Directions

    1. Students find out about different kinds of triangles, including right, isosceles, scalene, and equilateral triangles. Identify characteristics of each triangle.
    2. Use a ruler and Crayola® Colored Pencils to make samples of each kind of triangle. Decorate triangles with colorful patterns, then cut out with Crayola Scissors.
    3. Cut and fold small strips of paper in fourths to make tabs to attach to the backs of each triangle. Glue one end to the other with a Crayola Glue Stick. Apply glue to the outward faces of the tabs to attach triangles on poster board.
    4. Use colored pencils to label each triangle on the poster board. Add descriptive captions identifying characteristics of each triangle. Draw arrows pointing out particular angles typical of specific triangles. Design a title for the poster using block lettering and bold colors.
  • Standards

    LA: Acquire and use accurately grade-appropriate general academic and domain-specific words and phrases, including those that signal precise actions, emotions, or states of being and that are basic to a particular topic.

    MATH: Classify two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Recognize right triangles as a category, and identify right triangles.

    VA: Use different media, techniques, and processes to communicate ideas, experiences, and stories.

    VA: Use visual structures of art to communicate ideas.

  • Adaptations

    Students draw a template of a specific triangle type and use the template to create an original tesselation from this template.

    Students search for samples of each type of triangle at home and in their neighborhood. Create a small gropu or whole class chart of triangle types and where they were observed by students.

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