Curated OER
Building Buildings
Seventh graders investigate 2-D and 3-D objects. In this geometry lesson, 7th graders begin to understand spatial reasoning. Students look at pictures of the NYC Skyline and discuss what it looks like from different views. Students use...
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Measuring Angles
Sixth graders identify and measure right, acute, obtuse, and straight angles. In this geometry lesson, 6th graders review the definition of each angle and are shown examples of each specific angle. Students use toothpicks, gumdrops, and...
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Spreading Doom
High schoolers explore the pattern created by a sequence or series. In this geometry lesson, students relate the spread of a virus to the growth of exponential functions. They collect data as they analyze the sequence created by the growth.
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Trigonometry Ratios
Students identify the different angles and sides of a triangle. In this geometry lesson, students identify the six trigonometric ratios. They graph the graph of each trig function and analyze it.
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Living Room Redecoration
Fourth graders use math in a living room redecoration lesson. For this geometry lesson, 4th graders get the dimensions of a living room and need to find the amount and cost of paint and flooring. They read different scenarios and decide...
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Am I Seeing Double?
Students explore symmetrical design and lines of symmetry. In this fourth grade geometry lesson, students create their own symmetrical design and identify and label the lines of symmetry. Students use one design to create a...
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Shapes and Designs Investigation
Sixth graders estimate angle measures and angle theroms. In this online interactive geometry lesson, 6th graders review types of angles, investigate angle theroms, and explore nonadjacent angles.
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Circles-Diameter, Circumference, Radius and the Discovery of Pi
Seventh graders measure the diameter, circumference and radius of a circle and find pi using the diameter and circumference. In this geometry lesson plan, 7th graders work in groups to find the diameter, radius, and circumference of...
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Mirror Symmetry/Mirror Images
Students explore lines of symmetry in geometric shapes. In this geometry lesson, students construct angles using mirrors and rubberbands, then predict the number of images that will appear in the reflection. Students reproduce lines of...
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The Very Hungry Caterpillar - Teaching Shapes
Students identify two- and three-dimensional figures and associate them with real-world objects. In this geometry lesson, students are read The Very Hungry Caterpillar by Eric Carle and complete several activities including a chart...
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Triangle Conjectures
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles are formed by...
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Investigating AAS
Students investigate the theorems of ASA, AAS, AAA and ASA. In this geometry lesson plan, students discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles are formed by two...
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Similar triangles
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles are formed by...
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Weights of Objects
Students differentiate between the weights of an object on different planets. In this geometry lesson, students investigate different weights and graph their results as it relates to the different planets. They appreciate the design of...
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Proving the Pythagorean Theorem
Young scholars solve problems using the pythagorean Theorem. In this geometry lesson, students complete proofs using the Pythagorean Theorem. They share their proofs and solutions with their classmates and family members.
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Dimension Review
Students differentiate the pros and cons of different areas. In this geometry lesson, students compare and contrast different sizes based on their area. They put an image to the size of a shape.
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Draw a Diagram
Students draw diagrams to help them solve word problems. In this geometry lesson, students follow step by step directions to set up a word problem and solve it. They write a paper on their prefer rules or strategies.
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Recognize, create and Record Simple Repeating Patterns
Students analyze, create, and record repeating patterns. In this geometry lesson, students create shapes using patterns and keep track of the different shapes. They incorporate transformation and reflections into their patterns.
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Properties of Reflections
Students perform transformation on their polygons. For this geometry lesson, students identify the correct transformation of each shape. They move the polygons around on a coordinate plane. There are extension and homework activities...
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Volume of Spheres
Students find the volume of spheres. In this geometry instructional activity, students measure and derive the formula for each shape and solid. They use the correct terminology and units when solving these problems.
Texas Instruments
Area of Circles
Students explore circles. In this algebra/geometry instructional activity, students discover the formula for the area of a circle, as they investigate the ratio of the area of a circle to the radius^2.
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Sports and Geometry
Students investigate shapes in sports. In this geometry lesson, students identify geometric shapes in sports equipment, fields, etc. Students present their findings.
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Properties of Parallelograms
Learners identify different properties of parallelograms. In this geometry lesson, students complete problems that proves the theorems and properties of parallelograms. They graph the different shapes on paper.
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Basic Geometry Ideas and Angle Measurement
Seventh graders explore the concept of basic geometry. In this basic geometry lesson plan, 7th graders identify the correct picture for a given vocabulary word such as midpoint, line, ray, or parallel lines. Students discuss examples...
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