Education Technology
Geometry: Triangles Classroom ActivitiesDownload
Geo_Angle_Side_Relationships_in_Triangles_sm

Angle-Side Relationships

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Investigate some necessary conditions for creating a triangle.
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Congruent Triangles

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This activity is intended to provide students with an opportunity to discover three methods of proving triangles congruent: SSS, SAS, and ASA.
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Corresponding Parts of Congruent Triangles

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Explore corresponding parts of congruent triangles.
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    TI-Nspire™ CX
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Geo_Side_Side_Angle_sm

Side-Side-Angle: The Ambiguous Case

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Experiment with segment lengths and angle measures.
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    TI-Nspire™ CX
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Geo_Special_Segments_in_Triangles_sm

Special Segments in Triangles

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Create four special segments from a given vertex in a triangle and identify relationships among the special segments and the angles they form.
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Geo_Triangle_Inequality_Theorem_sm

Triangle Inequality Theorem

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Given the measures of any three segments, will you always be able to make a triangle?
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    TI-Nspire™ CX
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Geo_Triangle_Sum_Theorem_sm

Triangle Sum Theorem

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Investigate the special relationship of the angles of a triangle.
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    TI-Nspire™ CX
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