Pupils explore the relationship of angles as it relates to 2 and 3-D shapes. In this geometry activity, students differentiate between acute, obtuse, right, alternate interior, exterior and adjacent angles. They manipulate a math...

Students identify properties of triangles. In this geometry instructional activity, students create triangles using three different segments. They make conjectures and predictions.

Fifth graders discover congruent figures by investigating graphs and manipulatives.  In this geometry lesson, 5th graders identify congruent figures and patterns with their classmates.  Students collaborate in groups to create...

Students explore measurements by completing worksheets in class. In this geometry lesson, students identify the basic measurement units in both the English and metric systems. Students analyze 2 and 3 dimensional objects and identify...

Students differentiate between different planes. In this geometry lesson plan, students differentiate between a plane and a sphere. They discuss the Great Circle, Geodesic and Lune as it relates to the earth.

Learners solve and verify the solution for unknown measures. In this geometry lesson, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.

Students explore geometry in Navajo rugs. In this shape art lesson, students create a Navajo rug design using triangles and squares. Students investigate designs on the Internet and then create an original design.

Middle schoolers explore the concept of patterns. In this patterns instructional activity, students use applets to manipulate tessellations. Middle schoolers predict the next number in a sequence by recognizing patterns.

Seventh graders solve word problems involving real world situation. In this geometry lesson, 7th graders solve problems related to volume. They apply the formulas taught in geometry.

Students perform transformations and translation on a coordinate plane. In this geometry lesson, students move shapes around on a graph identifying translation, image, and transformation. This lesson has an interactive part online that...

Students investigate triangles and their angle-side relationship. In this geometry instructional activity, students identify the property of the triangles and use it to solve the problem correctly. They use the TI to graph their...

Students construct tangent lines. In this geometry lesson, students identify the point of tangency, secant and tangent lines. They graph the lines on the Ti and make observations.

Learners investigate the concept of manipulating polynomials. They go through the process of using algebra tiles in order to practice grouping of like terms and model the solving process.

Students calculate the traveled speed and distance of a robot. In this geometry instructional activity, students use the distance formula to manipulate and use to solve for the required variable. They calculate answers...

Third graders identify two and three dimensional shapes used in architectural designs by viewing images on the Internet.  In this geometry activity, 3rd graders create their own building designs and identify the geometric shapes...

Mathematicians measure intersecting lines-and circles, and create chords. In this geometry lesson, students explore interrior and exterior chords created by tangent and secant lines. These segments can be inside the circleor outside the...

Students differentiate between cubes and unit cubes. In this geometry lesson, students create linking cubes and use it as a manipulative to answer questions. They define the faces, edges and sides of the cubes as it relates to unit cubes.

Students investigate angles through construction. In this geometry lesson, students use a protractor to identify the measurement of an angle. They identify angles cut by a transversal and two parallel lines.

Sixth graders investigate different types of angles. For this geometry lesson, 6th graders use a protractor to identify acute, obtuse, and straight angles.

Second graders find missing addends by solving math word problems. In this missing addend lesson, 2nd graders work in a whole group setting to find the missing addends in word problems before using the strategies to work independently....

Students construct tangram patters. In this geometry lesson, students read the book Grandfather Tang's Story and visit various websites to practice covering figures with tangrams. Students attempt to construct animal shapes using puzzles.

Students perform translations on different polygons. In this geometry lesson, students create figures that will be used as an assessment to represent transformation. They perform hands on creation and relate it to the real world.

Students solve problems using the Pythagorean Theorem. In this geometry lesson,students identify the right angle, hypotenuse and legs of a right triangle. They find the missing sides using the ratios of the Pythagorean theorem.

Students define vocabulary words. In this geometry lesson, students identify the graph as a line, ray or segments. They understand the properties of each and calculate the distance on a number line.