Curated OER
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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Scenario Challenge
Students create a quilt, using different patterns. In this geometry lesson, students apply prior knowledge as they use different patterns to help them create a quilt using transformations and geometric shapes.
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Symmetry
Students 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...
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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Cutouts
Young scholars identify symmetry in shapes. In this geometry lesson, students fold paper to identify lines of symmetry. Young scholars create various symmetrical shapes using folded paper.
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Beads, Balls, and Beakers
Students analyze the amount of space required to pack round objects. In this geometry lesson, students practice using space economically by practicing packing spheres into beakers. They then translate this concept to molecules being...
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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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Hoe Long Does it Take to Get to a Star
Students 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 everyday...
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Finding Areas of Triangles, Rectangles, and Circles
Learners find the areas of geometric shapes. In this geometry lesson students find and measure the sides, perimeters, and areas of quadrilaterals, triangles, and circles. Learners relate the measures to the others by using formulas.
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Geogebra Basics
Students identify basic geometric shapes using Geogebra. In this geometry instructional activity, students work on a laptop as they explore different geometric shapes. They calculate the area and perimeter of triangles.
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Areas of Trapezoids, Rhombuses and Kites
Students calculate the area of different polygons. In this geometry lesson, students find the area for trapezoids, rhombuses and kites.
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3-D Attributes
Students explore geometric solids. In this geometry instructional activity, students listen to the book The Greedy Triangle by Marilyn Burns, then work in groups to sort geometric solids into various categories. Students define geometric...
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Footprints
Students explore patterns. In this patterns geometry lesson plan, 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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Balancing Act
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry lesson plan, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
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Exploring Characteristics Needed to Prove Two Trianlges Congruent
Tenth graders explore congruent triangles. In this geometry instructional activity, 10th graders investigate the conditions necessary to prove two triangles congruent. The instructional activity combines dry erase board...
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Proportion
Students investigate proportion and ratio. In this geometry lesson plan, students set up the ratios of proportions correctly and solve for the unknown. They relate it to word problems.
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Finding the Area of Regular Polygons
Young scholars analyze relationship between the increase in polygons sides and a circle. In this geometry lesson, students relate the size of the central angle of a polygon, to a circle. They compare the formula for the area of a polygon...
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Parallel and Perpendicular Lines
Tenth graders explore parallel and perpendicular lines. In 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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Building Buildings
Seventh graders investigate 2-D and 3-D objects. In this geometry lesson plan, 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...
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Measuring Angles
Sixth graders identify and measure right, acute, obtuse, and straight angles. In this geometry lesson plan, 6th graders review the definition of each angle and are shown examples of each specific angle. Students use toothpicks, gumdrops,...
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Angles in Triangles
Eighth graders translate word problems using mathematical ideas. For this geometry lesson, 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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Graphs and Measurement
Tenth graders analyze graphs and by comparing trees. In this geometry lesson, 10th graders investigate the use of different graphs using bar and regular graphs. They work groups at the computer.
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Graphing
Students collect data and graph their results, then analyze the graphs. For this geometry lesson, students examine slopes and their graphs and discuss the relationship between the lines and the slopes.
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Spreading Doom
Students 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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