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Lesson Plan
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How Do You Measure Up?

For Teachers 3rd - 4th
Students measure their body. In this measurement lesson, students use a string to measure their height and the circumference of their head. They record this information on the worksheet provided and answer questions as a group. 
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Lesson Plan
Curated OER

Similar Situations

For Teachers 3rd - 6th
Young scholars explore intersecting lines. In this intersecting lines lesson, students investigate shapes consisting of parallel, perpendicular, and similar lines. Young scholars investigate these lines in shapes around them.
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Lesson Plan
Curated OER

History / Introduction of Pythagorean Theorem

For Teachers 7th - 12th
Learners explore Pythagoras and the history behind his theorem. They work together to solve a proof that is embedded in the instructional activity.
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Lesson Plan
Curated OER

Searching for Angles and Lines

For Teachers 6th - 8th
Students work to find and reinforce concepts related to lines and angles. They identify the characteristics of shapes that have one, two, and three dimensions. The students also work on definitions related to the geometry of shapes.
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Lesson Plan
Curated OER

Circles, Squares, Triangles and Rectangles In Our World

For Teachers Pre-K - 2nd
Here is an engaging geometry lesson which has students identify the properties of shapes and cut shapes out of magazines. They make cookies using cookie cutters in various shapes.
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Lesson Plan
Curated OER

Matrices at the Speed of Light!

For Teachers 9th - 11th
Perform operations using matrices in this algebra lesson. Middle schoolers add, subtract, and multiply matrices. Additionally, they solve systems of equations using matrices.
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Lesson Plan
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THE TRIANGLE INEQUALITY IN ANIMATION

For Teachers 9th - 12th
Students open up the script to generate the sketch. They examine the viewing of the animation of a triangle. Students incorporate writing skills across the curriculum within this lesson.
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Lesson Plan
Curated OER

Area of Polygons

For Teachers 9th - 11th
Students engage in a lesson that is about the concept of polygons and focuses upon finding the area. They use formulas provided in the lesson in order to solve problems given by the teacher for independent practice. Geometric figures are...
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Lesson Plan
Curated OER

Discover the Pythagorean Theorem

For Teachers 6th - 8th
Students explore the Pythagoras theorem. In this geometry lesson, students make right triangles and identify the parts of the triangle. Students complete measurements of the sides of the triangle.
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Lesson Plan
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Exploring the Definition of Reflection

For Teachers 6th - 12th
Students practice using a protractor and ruler to draw various points and lines. Using a computer, they draw the points and lines in the program and describe the differences between their drawing and the computer's drawing. They complete...
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Lesson Plan
Curated OER

Track Traces

For Teachers 4th - 6th
Students explore animal characteristics by participating in an animal anatomy activity. For this animal tracks lesson, students identify the differences between specific animals and the shape of their footprints. Students utilize a...
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Worksheet
Curated OER

Making Two-Dimensional Shapes

For Students K - 1st
Which shapes fit? Learners practice visual discrimination using a geometry worksheet, which has them examine shapes that have been divided in half. They observe a set of shapes to determine which of them would fit into each half of the...
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Lesson Plan
Curated OER

Ladybug Adventures

For Teachers Pre-K - 2nd
Students solve problems using mathematical skills. In this math lesson, the students use math concepts, to design a virtual path for a ladybug. The students will reinforce their skills in algebra and geometry concepts.
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Lesson Plan
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Applications of Properties of Quadrilaterals in the Coordinate Plane

For Teachers 9th - 12th
Students explore the concept of quadrilaterals. For this quadrilaterals lesson, students use the slope formula, midpoint formula, and distance formula to justify that a given quadrilateral is a parallelogram.
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Lesson Plan
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Regular Polygons

For Teachers 5th
Fifth graders explore polygons. In this math lesson, 5th graders find examples of regular polygons in the classroom and measure the sides of figures to determine if they are regular polygons.
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Lesson Plan
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Transformations-Shapes on the Move

For Teachers 3rd - 8th
Students examine transformations. In this math lesson, students view and describe flips, slides, and turns. Students practice making transformations with shapes.
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Lesson Plan
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Pyramids with Basic Bases

For Teachers 4th - 5th
Students explore pyramids. In this math lesson, students discuss where they have seen examples of pyramids. Students classify pyramids as three-dimensional figures and identify their attributes.
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Lesson Plan
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The Circle's Measure

For Teachers 3rd - 7th
Young scholars explore circumference and diameter. For this math lesson, students apply their knowledge of circumference and diameter to solve mathematical riddles. Young scholars apply this knowledge to find circumference and diameter...
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Lesson Plan
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Noon Project Revisited

For Teachers 4th - 12th
Students, just like Eratosthenes, try to use math to calculate immeasurable objects. Teachers need to try out the calculations before having your class do them. They should take notes to be included with their own calculations and drawings.
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Lesson Plan
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Patterns in the Sums of Polygon Angles

For Teachers 6th
Sixth graders discover the patterns of sums of polygon angles. In this math lesson, 6th graders study the properties of geometric shapes to solve problems as they participate in hands-on activities.
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Lesson Plan
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Cross Section and Slope

For Teachers 6th - 8th
Students draw cross sections of given contour maps. In this math lesson, students interpret the different symbols used in the map. They determine slope and steepness through direct measurement.
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Lesson Plan
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Tessellations

For Teachers 2nd - 3rd
Students create tessellations. In this math lesson, students explore symmetry and patterns through the creation of a tessellation. Students design and create their own tessellation.
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Lesson Planet Article
Curated OER

Area and Perimeter Activities

For Teachers 3rd - 5th Standards
Read this article before you begin teaching geometry! It gives teachers some insight into the world of teaching geometry to young learners, and four area and perimeter lessons are attached. 
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Lesson Plan
Curated OER

Napolean Triangle

For Teachers 9th - 11th
Students investigate the Napoleon triangle theory. In this polygon lesson, students  differentiate between the boundary points, interior and lattice point of a polygon. They apply concepts of equilateral triangles to solve...

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