Worksheet
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New York State Standards

For Students 10th - 12th
In this math worksheet, students review for the high school exit exam of New York. They solve problems using algebra, geometry, and precalculus. There are 30 questions.
Lesson Plan
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Pythagorean Theorem

For Teachers 10th
In this geometry worksheet, 10th graders solve for missing sides and angles of a triangle. They use the pythagorean theorem to solve for the unknown in a right triangle. There are 5 questions on this worksheet.
Lesson Plan
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Mirror Symmetry/Mirror Images

For Teachers 5th - 6th
Students explore lines of symmetry in geometric shapes. In this geometry activity, students construct angles using mirrors and rubberbands, then predict the number of images that will appear in the reflection. Students reproduce lines of...
Lesson Plan
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Let the Sun Shine In: Energy Conservation

For Teachers 9th - 10th
Students create a project applying their math skills as they discuss energy conservation. For this geometry lesson, students define vocabulary relating to the environment and energy conservation. They construct a building that allow lots...
Lesson Plan
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Constructing Perpendicular Bisectors

For Teachers 10th
Tenth graders investigate parallel lines and the angles formed when cut by a transversal. In this geometry lesson, 10th graders construct perpendicular lines and discuss midpoint, segments and perpendicular bisectors. They relate...
Lesson Plan
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Automobile-Accident Reconstruction

For Teachers 10th - 12th
Students investigate an accident and relate it to math. In this trigonometry lesson, students measure the accident scene, the friction produced, and the speed from the skid marks. They create a poster of their findings.
Lesson Plan
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Triangle Conjectures

For Teachers 10th
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...
Worksheet
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Christmas Tree Angles

For Students 5th - 8th
In this angles worksheet, students measure angles to make triangles and cut them out to make a Christmas tree. Students draw and cut 5 triangles to make their tree.
Lesson Plan
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Hidden Jewels of Geometry

For Teachers 5th - 8th
Students identify different geometric shapes, and arrange them artistically in original jewelry designs.
Lesson Plan
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Inked Geometric Mandalas

For Teachers 5th
Fifth graders gain an appreciation for mandalas in many cultures. Compare and contrast designs from many cultures. They see geometric design in mandalas and become aware of symmetrical balance and radial balance. They create a mandala...
Lesson Plan
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Transversal and Angles

For Teachers 10th
Tenth graders identify angles formed by parallel lines and a transversal. Using meter sticks and bolts, they perform hands-on activities to demonstrate the properties of parallel lines and congruent angles. They color code diagrams to...
Worksheet
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Angles

For Students 6th - 8th
In this math learning exercise, learners measure a series of angles. Then they measure the angles in the triangles and determine the sum of the angles.
Lesson Plan
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Geometric Basketball Court

For Teachers 8th - 10th
Learners calculate the area and perimeter of a basketball court. In this geometry instructional activity, students differentiate between similarity and congruence of geometric objects. They test conjectures and use it to solve problems.
Lesson Plan
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Christmas Presents

For Teachers 7th
Seventh graders create a graph of their Christmas gifts. They develop categories, compute fractional and decimal parts for each category, identify the number of degrees to represent each fractional part, and create a circle graph to...
Lesson Plan
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Exploring Arrangements of 2, 3, 4, and 5 Cubes

For Teachers 8th - 10th
Students use problem solving skills to create various models of tricubes, tetracubes, and pentacubes. They classify the cubes into various groupings and identify them as mirror images, regular arrangements, and irregular arrangements....
Lesson Plan
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Strongest Polygon

For Teachers 9th - 12th
Students define and identify shapes by name. In this geometry lesson, students construct, identify and compare polygons based on the number of sides. They classify each shape based on their angle sum theorem.
Lesson Plan
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Tessellation Trial and Error

For Teachers 5th - 8th
In this interactive lesson, students review attributes of equilateral polygons. They are introduced to the concept of a tessellation. Using protractors and pre-cut shapes, students arrange a variety of tiles to create tessellations. They...
Lesson Plan
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Transformations

For Teachers 5th - 6th
Students draw on graph paper. For this geometry lesson, students review types of triangles and quadrilaterals. Students investigate geometric transformations, including translation, rotation and reflection. Students practice each...
Lesson Plan
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Team Puzzles

For Teachers 4th
Fourth graders work in co-operative teams of four to complete a puzzle. Each student initially works independently, and then the team jointly puts together the four shapes they have individually made, to complete the puzzle.
Lesson Plan
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Measurement via Triangulation

For Teachers 6th - 12th
Learners utilize triangulation techniques to determine altitudes of objects. An altitude locator is constructed and used to determine the height of a building or a tree. Tangent tables and formulas provide the ratio for the formula to...
Lesson Plan
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Altitude Locator

For Teachers 9th - 12th
Students use protractors, strings, and straws to construct a device used to determine the height of tall objects. For this applied geometry lesson, students use common objects to construct a tangent height guide. They use principles of...
Lesson Plan
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CSI Investigation of Congruence and Similarity

For Teachers 9th - 12th
Students differentiate between similarity and congruence using polygons. In this geometry lesson plan, students label triangles based on their properties. They find missing sides and angles using the interior sum theorem.
Lesson Plan
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Making Parallel Lines

For Teachers 8th - 10th
Young scholars differentiate between parallel and perpendicular lines. In this geometry lesson, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
Lesson Plan
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Are you in Golden Shape

For Teachers 7th - 10th
Students solve and verify the solution for unknown measures. In this geometry lesson, students identify the properties of circles. They use the arc, angle and segment relationship to find the missing measures.