Illustrative Mathematics
Tilt of Earth's Axis and the Four Seasons
Geometry meets earth science as high schoolers investigate the cause and features of the four seasons. The effects of Earth's axis tilt features prominently, along with both the rotation of the earth about the axis and its orbit...
Curated OER
Rallytable Angle Measuring
In this geometry worksheet, students measure various angles. First, they write what type of angle each one is, whether right, acute, or obtuse. Then students estimate the measurement and then write the actual measurement for each angle.
Curated OER
Geometry of Exploration: Eyes Over Mars
Pupils research how engineers and scientists generate linear and angular measurements with geometry to survey the Earth and Mars. They assess how geometric shapes affect navigation. A surveyor comes to the classroom and explains how he...
Curated OER
Exploring Projective Geometry
In this exploring projective geometry worksheet, students use computer software for instruction, then answer 9 questions about 3D drawings.
Curated OER
Ancient American Art and Geometry
Students explore the relationship between geometry and ancient American art. They see how to recognize geometric properties in specific works and explain how these properties contribute to their meaning and artistic merit.
Curated OER
Relating Algebra to Geometry
Learners investigate the connection that exists between Algebra and Geometry. They classify two and three-dimensional figures. Pupils use formulas to solve problems in geometry and use appropriate measuring devices in the right contexts.
Curated OER
Geometry: Lesson 8
Eighth graders engage in a lesson that is concerned with the finding of angles that are found in different two dimensional figures. They compare and contrast exterior and interior angles while also determining the unknown measures of...
Curated OER
Math-Geometry: Area and Perimeter
Upper graders measure the area and perimeter of several items. In this area and perimeter instructional activity, learners engage in measuring area and perimeter in several scenarios. Full-group instruction requires students to listen to...
Curated OER
A Penny for Your Height
Students investigate measurement. In this fifth/sixth grade mathematics instructional activity, students explore the relationship between inches and centimeters. Students measure their height in inches or centimeters and...
Discovery Education
Exploring Geometry
Middle schoolers construct a three-dimensional model of a city using both similar and congruent figures and geometric transformations. City must have at least ten buildings with each building labeled and may be constructed out of paper...
Mathalicious
Been Caught Stealing
You're safe, when calculating the odds of stealing second base! Learners compare the rate of a runner to the distance the ball travels, in a lesson that explores right triangles and measurement. Full of discussion questions and fun...
Curated OER
Connecting Measurement
Students participate in activities the connect measurement to geometry, statistics, estimation, and the real world. They collect measurements from their elbow to the tip of their middle finger and make a box plot of the data as well as...
Curated OER
Measure the Earth's Circumference
Students explore geometry by conducting a science experiment. In this circumference measurement lesson plan, students review the Greek geographer Eratosthenes who first discovered the circumference of our planet. Students utilize...
Curated OER
Math and Measurement
Students use the correct tool to measure distances. In this geometry lesson, students use an odometer and ruler correctly as they study maps. They describe how far way something is.
Curated OER
Measuring Angles
Middle schoolers explore angle measure as they estimate angle measure and measure and draw angles of less than 360 degrees. The lesson emphasizes the use of estimation when measuring angles.
Curated OER
Measuring Angles in a Triangle
High schoolers investigate the sum of the measures of the angles of a triangle. They draw a triangle and measure the interior angles. Using Cabri Jr., learners find the sum of the measures of the interior angles. The activity provides an...
Curated OER
Geometry, Measurement & Reasoning
Learners measure prisms and determine their volume. In this measurement and reasoning lesson, students estimate the volume and area of prisms. They measure given boxes. Learners use paper to create prisms and cylinders. They determine...
Curated OER
Geometry Regents Questions: Isosceles Triangle Theorem
In this isosceles triangle worksheet, students solve 19 multiple choice and short answer problems. Students use the isosceles triangle theorem to determine unknown angle measures.
Curated OER
Area Measures and Right Triangles
Your class will investigate the relationship among different triangles. This geometry lesson, demonstrates how to make a connection between triangles and the Pythagorean Theorem. They identify the missing side or angle of a triangle.
Curated OER
Weight Game
Students estimate and compare grapefruit weights. In this weight measurement and literacy lesson, students listen to the story Nate's Big Hair and the Grapefruit in There, then estimate the weight of a grapefruit after holding it....
Curated OER
Measuring Angles & Segments
Young scholars view a PowerPoint for a warm-up lesson plan. They practice measuring around the classroom, measuring such things as the length and width of a desk, pencil, door, and book. Students use a website to practice measuring angles.
Curated OER
Measuring the Area of Polygons
Fourth graders use pattern blocks to explore areas of polygons. They explain that the answers to the area of the same polygon vary according to the units of measurement used. They visualize how different units of measurement can be used...
EngageNY
Dividing the King’s Foot into 12 Equal Pieces
Apply, apply, apply! A measurement lesson applies a number of concepts to help learn a new construction. Scholars learn to divide a segment into n equal parts using a method that uses the Side Splitter Theorem and a method that...
EngageNY
Looking More Carefully at Parallel Lines
Can you prove it? Making assumptions in geometry is commonplace. This resource requires mathematicians to prove the parallel line postulate through constructions. Learners construct parallel lines with a 180-degree rotation and then...
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