Geometry Lesson Plans

In this lesson students use protractors to measure angles. They use geometric relations of triangles and circles to find distances. They calculate rates of speed. They solve problems using the circumference of a circle.

In this lesson learners practice measuring with standard and nonstandard tools. In this measurement lesson, learners use software and books to learn about measurement. The teacher shows the learners materials and asks how they could be measured with nonstandard tools. In this lesson learners use nonstandard tools to measure objects and each other. In this lesson learners are also shown how to use standard measuring tools.

Learners use geometry to analyze North American quilt patterns. In groups, they review the concepts of area, perimeter and symmetry. They discover the importance of the star and research Morning Star quilts on the internet.

Students discuss how people have used triangulation to navigate throughout history. In this geometry lesson students, use the Pythagorean Theorem to assess the importance of math in navigation. This lesson includes web links, background information, and equations to be worked.

In this lesson learners calculate the area and volume of rectangular prisms. In this geometry lesson, learners use a computer program to analyze the area and surface area of a polygon.

8th graders identify the different ratios of a right triangle. In this geometry lesson, 8th graders find the sine, cosine and tangent of a right triangle. They use the Pythagorean Theorem to calculate the different sides of the triangles.

Students explore the concept of hand geometry. In this hand geometry lesson, students various measures of the hand such as finger length, finger circumference, and wrist circumference. Students are given 6 suspect hands to match to the hand measurements supplied by the teacher. Students use cm rulers to measure the hands.

Students explore the concept of angles and segments.  In this angles and segments lesson, students determine the measures of right, acute, and obtuse angles.  Students determine the length of a segment given an algebraic expression.  Students add angles on their Ti-Nspire according to the angle addition postulate.

Learners explore geometry through quilt designs. In this math lesson, learners examine the geometric shapes in various quilts. Learners create their own quilts using geometric shapes that fit together. Learners write a paragraph to describe their quilt pattern.

In this lesson 5th graders explore measuring the perimeter of various objects. In groups, they place various size polygons in order of size. They use non-standard measuring tools to estimate the distance around objects. In this lesson 5th graders record the information in tables. They predict the measurement and use a ruler to accurately determine the perimeter.