EngageNY
Sequencing Rotations
Discover the result of a sequence of rotations about different centers. Pupils perform rotations to examine the patterns. They also describe the sequence of rotations that performed to reach a desired result in the ninth installment in a...
Curated OER
Congruent Triangles Postulates
Students discover three lettered postulates that prove triangles congruent.
Curated OER
Working With Pattern Blocks
Fifth graders solve mathematical problems using manipulatives in this math lesson for the fifth grade classroom. Various activities are suggested for lesson implementation making this lesson highly adaptable to fit the needs of the...
Curated OER
Review For Weather Quiz 2
In this science worksheet, learners look at the information carefully in preparation for a formal assessment. The focus is upon defining different aspects of air masses.
CK-12 Foundation
Ck 12: Geometry: Comparing Angles and Sides in Triangles
[Free Registration/Login may be required to access all resource tools.] In this lesson students compare sides and angles in triangles. Students examine guided notes, review guided practice, watch instructional videos and attempt practice...
CK-12 Foundation
Ck 12: Comparing Angles and Sides in Triangles
[Free Registration/Login Required] Students explore angles and sides in triangles by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the...
CK-12 Foundation
Ck 12: Geometry: Comparing Angles and Sides in Triangles
[Free Registration/Login may be required to access all resource tools.] This concept teaches students the relationship between opposite angles and sides in triangles and how to use this relationship to compare triangles. students examine...
CK-12 Foundation
Ck 12: Geometry: Inequalities in Triangles Study Guide
This study guide on triangle inequalities discusses comparing angles and sides, the Triangle Inequality Theorem, and the Hinge Theorem. It is available for download with free registration.
Texas Instruments
Texas Instruments: Triangle Inequality Theorem
In this activity, students will explore the concepts underlying the Triangle Inequality Theorem by comparing side lengths and angle measures of a triangle. They will use an interactive construction to see why this theorem is true.