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EngageNY
Solve for Unknown Angles—Angles in a Triangle
Assist your class with each angle of geometry as they use exterior angles to form linear pairs with adjacent interior angles. They cover multiple vocabulary terms and work practice problems, complete with justifications, before...
Virginia Department of Education
Similar Figures
How similar do figures have to be to be similar figures? Individuals learn to identify similar figures by verifying that angles are congruent and sides are proportional. Additionally, they match the corresponding parts of similar figures.
EngageNY
Special Relationships Within Right Triangles—Dividing into Two Similar Sub-Triangles
Why are right triangles so special? Pupils begin their study of right triangles by examining similar right triangles. Verifying through proofs, scholars recognize the three similar right triangles formed by drawing the altitude. Once...
Curated OER
A Moving Experience - Forces and Inertia
Pupils view a video and complete corresponding activities to observe inertia. They observe and predict the effect various forces have on objects.
Curated OER
A Moving Experience - Forces and Inertia
Students consider the first part of Newton's First Law of Motion, the Law of Inertia of objects at rest, which states that every object remains at rest unless acted on by a force. They perform hands-on experiments which demonstrate this...