Lesson Plan
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Math: Tangents

For Teachers 9th - 10th
Students discover how to recognize tangents and how to use their properties. They investigate and use the properties of angles, arcs, chords, tangents, and secants. Students use two tangents and the properties of similar triangles to...
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Foil Fun

For Teachers 2nd
Second graders be having hands-on experiences with three-dimensional solid shapes. They investigate the features of solid shapes and examine the names for them. They are introduced to making nets for 3D shapes.
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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.
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Using Trigonometry

For Teachers 5th
Fifth graders explore the use of trigonometry to find unknown sides and angles in right-angled triangles, taking the concepts that were developed in the previous unit and looking at different ways of practicing the new skills. Students...
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Shapes

For Teachers K - 2nd
In this early childhood math worksheet, pupils practice distinguishing shapes as they match the square, triangle, circle, pyramid, and cube shapes to the appropriate names in the right-had column.
Worksheet
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Classify Angles Worksheet

For Students 5th - 6th
In this angle classification activity, learners solve 8 problems in which an angle measurement in degrees is analyzed. Students classify each angle as right, obtuse, or acute.
Worksheet
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Parallel Lines and Triangles

For Students 9th - 12th
In this triangles worksheet, students solve 1 problem of multiple variables within a single picture of various triangles intersecting with a pair of parallel lines.
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Volume of 3D Shapes

For Teachers 6th - 7th
Calculate the volume of 3D shapes by having your students use provided formulas to measure the volume of cylinders, square pyramids, and rectangular prisms. Using a lecture format, with demonstrations, you will walk your class through...
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Equations of Circles

For Teachers 10th - 12th
Students will define circle and radius. In this radius lesson,  students are given a circumference, they will write an equation and sketch the circle. Students will match graphs of circles to their equations.   
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Patchwork Math

For Teachers 3rd - 5th
Students recognize and identify shapes in their environment. They investigate why objects can be composed of several different shapes. They follow a pattern to recreate designs using various shapes.
Worksheet
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Conditional Statements

For Students 11th
In this conditional statements worksheet, 11th graders solve and complete 15 various types of problems. First, they determine if a conclusion can be reached from the two statements using the law of detachment or the law of syllogism....
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Sled Kite

For Teachers K - 8th
Students make and fly a sled kite out of plastic garbage bags, dowel rods, and more. In this kite lesson plan, students plan the kite to have symmetry and make adjustments as they test it.
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Clock Arithmetic and Cryptography

For Teachers 9th - 12th
High schoolers investigate modular clock arithmetic and cryptography. They perform basic operations in modular (clock) arithmetic and encode and decode messages using simple shift and affine ciphers.
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Translations, Reflections, and Rotations

For Teachers 10th
Tenth graders have been introduced to the concepts of translation, reflection, and rotation, and have practiced translating, reflecting, and rotating two-dimensional objects on the coordinate plane.
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The Mandelbrot Set

For Teachers 9th - 12th
Students are introduced to the notion of a complex number and function iteration in order to motivate the discussion of Julia sets and the Mandelbrot set.
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Polygons And Polyhedra

For Teachers 9th - 12th
Students recognize and name two-dimensional and three-dimensional geometric figures. One group of students will extend the study of polygons to quadrilaterals while another group of students will extend the study of polygons to...
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The Art and Science of Fractals

For Teachers 7th - 10th
Students explore the world of fractal images and the mathematics behind them. They explore fractal sites on the Internet. They create their own fractal designs. They publish a calendar displaying their favorite fractal art.
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The Corner Problem

For Teachers 11th - Higher Ed
Students explore the concept of the corner problem. In this corner problem lesson, students use the TI-NSpire to determine the maximum length a rod can be and still pass horizontally around a corner. Students use similar triangles to...
Worksheet
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Polygon Jigsaw Puzzle

For Students 3rd - 5th
In this polygons activity, students put a polygon jigsaw puzzle back together to form the planet Earth. Students put 10 polygons together.
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Graphing and the Coordinate Plane

For Teachers 7th - 9th
Students gain practice reading coordinates and plotting points by participating in the Coordinates! Game. They demonstrate and test their skills with graph paper and the Maze Game.
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Geometric Shape Dances

For Teachers K - 4th
Students use movement and dance in order to strengthen mathematical understanding of different geometric shapes. The movements are imitating the drawing of shapes and they pick one to make into a dance. Upon beginning the dance music can...
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Geometric Solids

For Teachers 4th
Fourth graders examine the properties of geometric solids. Given geometric figures, they brainstorm observations. In groups, 4th graders identify solids and discuss the physical properties. Each student creates a Venn diagram and...
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Volume Of A Cube

For Teachers 4th
Fourth graders find the volume of cubes and cylinders. To determine volume, they fill large cubes with centimeter cubes. They discuss the formula used to find the volume of a cube. Students explore why the solution to the volume of a...
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Area And Perimeter Powerpoint

For Teachers 3rd - 5th
Students engage in a study using technology in order to attempt the comprehension of using perimeter and area. They use powerpoint to solve different problems. This helps to keep learners engaged in the process of practice and...