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Special Angles on Parallel Lines
Tenth graders investigate parallel lines and their special angles cut by a transversal. In this geometry activity, 10th graders identify and find corresponding, alternate interior, and alternate exterior angles formed when parallel lines...
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Constructing Perpendicular Bisectors
Tenth graders investigate parallel lines and the angles formed when cut by a transversal. In this geometry instructional activity, 10th graders construct perpendicular lines and discuss midpoint, segments and perpendicular bisectors....
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The Shapes of Rice
Students investigate geometry by identifying shapes related to rice and rice farming. In this geometry lesson, students discuss the different shapes used in rice agriculture and discuss what other objects in our lives use that same...
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Footprints
Students explore patterns. In this patterns geometry lesson, students identify and extend patterns including body parts, movement, geometric shapes, noises, and footprints. Students create and share an original pattern.
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Cutouts
Students identify symmetry in shapes. For this geometry lesson, students fold paper to identify lines of symmetry. Students create various symmetrical shapes using folded paper.
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Angles in Triangles
Eighth graders translate word problems using mathematical ideas. In this geometry lesson plan, 8th graders identify angles of triangles using equations and the triangle sum theorem. They create angles with a protractor and straight edge.
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Indirect Measurement, Surveying Trigonometry
Students measure distances using indirect measurements. In this geometry lesson, students apply proportion and ratios to measure heights of different objects. They differentiate between direct and indirect measurements.
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Graphs and Measurement
Tenth graders analyze graphs and by comparing trees. In this geometry instructional activity, 10th graders investigate the use of different graphs using bar and regular graphs. They work groups at the computer.
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Hoe Long Does it Take to Get to a Star
Young scholars calculate the distance in light years. In this geometry lesson, students solve problems involving distance, using the distance formula. They rewrite big numbers using scientific notations and apply their knowledge of...
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Symmetry
Learners explore symmetry. In this geometry lesson, student identify and define bilateral symmetry, radial symmetry, pentagonal symmetry, hexagonal symmetry, and cubic symmetry. Students construct examples of these types of symmetry 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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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.
Alabama Learning Exchange
Creating a Reflection
Investigate geometric reflections in this geometry lesson. Create geometric reflections that show the reflection across the x and y axis of a coordinate graph. Learners watch a teacher demonstration before proceeding on their own. They...
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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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Balancing Act
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry lesson, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
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Real Number System Graduated Bowl Activity
Eighth graders determine which numbers are rational numbers. In this number lesson students answer a series of questions related to natural and whole numbers as well as integers and rational numbers. Students work cooperatively in groups.
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Parallel and Perpendicular Lines
Tenth graders explore parallel and perpendicular lines. For this geometry lesson, 10th graders investigate the relationships associated with parallel lines and transversals, perpendicular lines, and the angles formed by these...
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Graphing
Students collect data and graph their results, then analyze the graphs. In this geometry lesson, students examine slopes and their graphs and discuss the relationship between the lines and the slopes.
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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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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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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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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...