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Middle Grades Math: Geometry Classroom ActivitiesDownload
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Building a Garden Fence

In this activity, students will use basic concepts of perimeter and area to investigate a classic problem situation requiring maximization. They must decide how to build a garden fence to enclose the largest possible area.
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    TI-84 Plus C Silver Edition
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step2

Changing Before My Eyes

In this activity, students will discover how pictures formed by graphing ordered pairs can be stretched (and shrunk) by multiplying (and dividing) the coordinates.
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    TI-84 Plus C Silver Edition
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step1

Comparing Area of Rectangles

In this activity, students discover the relationship between a change in the dimensions of a rectangle and the change in the corresponding area.
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    TI-84 Plus C Silver Edition
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step2

Making Triangles

In this activity, students will investigate properties of triangles, classify the various types of triangles, and determine if specific side lengths will make a triangle or not.
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    TI-84 Plus C Silver Edition
  • TI-84 Plus Silver Edition
  • TI-84 Plus
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    TI-84 Plus CE Family
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step1

Mirror, Mirror, on the Graph

In this activity, students review basic geometry vocabulary while investigating reflections on a coordinate grid.
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    TI-84 Plus C Silver Edition
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    TI-84 Plus CE Family
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step2

Move it

In this activity, students investigate transformation, slides and scaling, of a triangle using lists. They will add, subtract and multiply numbers to the list and describe the changes that have occurred. Students are to make the connection between changing the x- or y-values and the transformation.
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    TI-84 Plus C Silver Edition
  • TI-84 Plus Silver Edition
  • TI-84 Plus
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    TI-84 Plus CE Family
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Transforming Fish

In this activity, students will discover how pictures formed by graphing ordered pairs can be stretched (and shrunk) by multiplying (and dividing) the coordinates.
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    TI-84 Plus C Silver Edition
  • TI-84 Plus Silver Edition
  • TI-84 Plus
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    TI-84 Plus CE Family
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step3

Vertical Angles

In this activity, students visualize and explore the angles that are formed when two lines intersect. By measuring angles formed by intersecting lines, they enhance their understanding of vertical angles, supplementary angles, and a linear pair.
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    TI-84 Plus C Silver Edition
  • TI-84 Plus Silver Edition
  • TI-84 Plus
  • ax-icon-color-device
    TI-84 Plus CE Family
Download430