Lesson Plan
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An Introduction to Quadrilaterals

For Teachers 9th - 12th
Students explore the concept of quadrilaterals. In this quadrilateral lesson, students play with a floor tile applet to see that there are many types and characteristics of quadrilaterals including parallelograms, trapezoids, rectangles,...
Lesson Plan
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Perfectly Puzzling Pentominoes

For Teachers 2nd
Second graders utilize manipulatives (pentominoes) to demonstrate knowledge of: lines of symmetry, slides, reflections (flips), rotations (turns), area, and perimeter. This lesson plan gives students a meaningful way to practice these...
Lesson Plan
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Triangle Inequality Theorem

For Teachers 8th - 10th
Students use the inequality theorem to solve triangles and their properties. In this geometry lesson, students are given spaghetti of different lengths and asked to create triangles. They conclude the necessary length needed to make a...
Lesson Plan
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Angle Pairs

For Teachers 9th - 12th
Students practice identifying right, vertical, and adjacent angles using a Smartboard. They then determine measurements of all of the angles when only one measurement is given.
Lesson Plan
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Quandaries, Quagmires, and Quadrilaterals

For Teachers 3rd - 5th
Students classify, flip, slide, and turn a quantity of quadrilaterals.
Lesson Plan
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Flips, Sides and Turns: Exploring Transformations

For Teachers 4th - 5th
Students use an online dictionaries to define key geometric terms. They explore several websites to help them differentiate the terms reflections, translations and rotations as they apply to geometry and then complete an assessment...
Worksheet
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Volume and Surface Area of Polyhedrea

For Students 8th - 11th
In this volume and surface area worksheet, students use given formulas to determine the volume and area of polyhedrea. This four-page worksheet contains examples, explanations and 32 problems. Answers are provided on the fourth page.
Lesson Plan
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Applying Proportionality in Scale Drawings

For Teachers 6th
Sixth graders examine a blue print and discuss the reasoning behind using blue prints. In this proportionality lesson,  students collaborate with their teammates to create a scale drawing. Once that is complete, 6th graders write a...
Lesson Plan
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Transformations, Tessellations, and Technology

For Teachers 6th - 8th
Students complete a unit about transformations and tessellations. They explore various tessellation websites, determine which shapes tessellate, complete a log about which website activities they complete, and create a tessellation...
Lesson Plan
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Introduction to Fractals: Geometric Fractals

For Teachers 6th - 8th
Learners study and observe the patterns made by the areas of the Sierpinski Triangle. Students use the computer to draw two or three iterations to discover the number patterns. Learners complete worksheets based on Geometric Fractals.
Lesson Plan
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Angles, Triangles, Quadrilaterals, Circles and Related

For Teachers 6th - 8th
Students classify angles. In this angles lesson, students explore the characteristics of angles, triangles, quadrilaterals and circles. They identify polygons and sing a classifying angles song. Students participate in a manipulative...
Lesson Plan
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What are Fractals?

For Teachers 6th - 12th
Middle and high schoolers identify and analyze fractals and research information using the Internet to locate information about them. They look at fractals in relation to nature and other real world situations. Pupils create several...
Worksheet
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Polygons and Sketching

For Students 8th - 10th
For this geometry worksheet, students define and draw quadrilaterals. They differentiate between the different shapes. There are 3 questions with an answer key.
Worksheet
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Rotations and reflections

For Students 4th - 8th Standards
For this rotations worksheet, students complete problems having to do with shapes and their rotations, reflections, symmetry, translations, and more. Students complete 6 problems.
Lesson Plan
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Dilations- What a Stretch!

For Teachers 9th - 10th
High schoolers perform dilation on various geometric shapes. They also discuss pros and cons of dilation and employ the Frayer Model to study the vocabulary words in this section.
Lesson Plan
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What a SHAPEly Fit!

For Teachers 3rd - 5th
Students identify and explore the attributes of polygons. They design and create a quilt square using polygons, and produce a class quilt.
Lesson Plan
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Tetrominoes Cover-Up

For Teachers 3rd
Third graders compare and contrast the attributes of two-dimensional shapes. Using a tetrominoes game, they create two-dimensional shapes to cover up a game board. At the conclusion of the game, 3rd graders discuss the patterns they...
Lesson Plan
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Tessellations

For Teachers 4th - 6th
Students identify shapes that will tessellate. They construct a tessellation using transformations. Students identify transformations in tessellations. They identify applications of transformations such as tiling and fabric design.
Lesson Plan
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Ship Shape

For Teachers 2nd
Second graders explore shapes. After reading books about shapes, 2nd graders describe the properties of various shapes. They identify shapes if they have been rotated, flipped, or slid. Students create shapes using drawings and geoboards.
Lesson Plan
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Tangram Tantrums

For Teachers 4th - 6th
Learners discuss tangram vocabulary, and act out slide, flip, and turn. They observe tangram puzzles on a web page, and solve their own tangram puzzles.
Lesson Plan
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Geo Jammin' By DeSign - Day 3, Lesson 15: The Quiltmaker's Gift

For Teachers 2nd - 3rd
Students listen to a read aloud of The Quiltmaker's Gift by Jeff Brumbeau finding examples of symmetry in the illustrations in the book.
Lesson Plan
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Designing a Quilt Pattern

For Teachers 8th - 12th
Students create and color a one-patch quilt design based upon a regular hexagon. They examine quilts and photos of quilt designs, read a handout, and complete their quilt design on a worksheet.
Lesson Plan
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Geo Jammin' By DeSign - Day 2, Lesson 8: Can You Please Give Me Directions?

For Teachers 2nd - 3rd
Students participate in a guided reading experience by following directions to cut out tangrams. They listen to the directions and cut as the reading progresses.
Worksheet
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The Quadrilateral Family

For Students 10th
For this quadrilaterals worksheet, 10th graders solve and complete 10 different problems that include identifying various quadrilaterals. First, they indicate whether the statements are true or false for each. Then, students determine...