Lessons tagged with "triangles"

This geometry lesson covers identifying two-dimensional shapes by their attributes. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will describe the attributes of a shape that are always true and sometimes true, and then match various shapes to the correct bin. Shapes identified are triangles, rectangles, squares, circles, pentagons, and hexagons.

This measurement and geometry lesson focuses on using a property of triangles to solve for unknown angles. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students list the given angle measurements, then solve for the unknown angle by adding the given angle measurements and subtracting the sum from 180 degrees. Finally, they interpret the measurement of the angle. In addition to the lesson, there are four pages of Independent Practice and review with questions modeled after current adaptive testing items.

This measurement and geometry lesson focuses on classifying triangles by their attributes. The lesson includes research-based strategies and questions that help prepare students for assessments. In this lesson, students identify equal sides on a triangle and classify the triangle by its sides. In addition to the lesson, there are triangle flashcards and four pages of Independent Practice and Periodic Reviews with questions modeled after current adaptive testing items.

This math lesson teaches students how to use the Triangle Inequality theorem to determine the possible range of values for an unknown side of a triangle. The lesson includes research-based strategies and strategic questions that prepare students for standardized assessments. In this lesson, students will calculate the sum and difference of the two known sides of the triangle and recognize that the unknown side must have a value between the two. In addition to the lesson, there are two pages of independent practice and nine pages of periodic review with questions modeled after standardized assessments.

This geometry lesson covers how to construct triangles using a ruler, protractor, and compass. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, the teacher constructs the triangle with the given conditions, labeling the sides and angles. Then, students do a different construction of the same triangle, and check it by measuring the three side lengths and angles. An animated demonstration is provided.

This geometry lesson teaches students how to apply the Pythagorean Theorem to determine unknown side lengths in a right triangle. The lesson includes research-based strategies and strategic questions that prepare students for assessments. In this lesson, students will use the Pythagorean Theorem to find the lengths of the sides of a triangle.  This lesson also includes real-world word problems.

This math lesson teaches students how to use the SAS, SSS, ASA and AAS postulates/theorem to determine whether two triangles are congruent. The lesson includes research-based strategies and strategic questions that prepare students for standardized assessments. In this lesson, students will identify given information and determine which postulate or theorems apply, and then use it to determine whether a second triangle is congruent. In addition to the lesson, there are two pages of independent practice and three pages of periodic review with questions modeled after standardized assessments.

This math lesson teaches students how to use the Angle-Angle or the Equal Side Ratio theorem to determine if two triangles are similarity. The lesson includes research-based strategies and strategic questions that prepare students for standardized assessments. In this lesson, students will identify known information and determine which theorem applies, then use the theorem to prove the triangles' similarity. In addition to the lesson, there are two pages of independent practice and three pages of periodic review with questions modeled after standardized assessments.