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Interactive
Curated OER

Polygons Multiple Choice

For Students 9th - 10th
In this geometry worksheet, students identify the interior and exterior angles using the angle sum theorem. They identify and solve quadrilaterals using properties of quadrilaterals. There are 12 questions with an answer key.
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Lesson Plan
Curated OER

Introducing Angles

For Teachers 6th
Sixth graders identify, compare and interpret the characteristics of polygons and angles in order to meet spatial sense, geometry and measurement standards. They also sort shapes into three categories, polygons (regular and irregular)...
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Lesson Plan
Beacon Learning Center

Perfect Polygons

For Teachers 4th - 5th Standards
Don't worry if you do not have the mentioned textbook; there is enough material here for you to carry out a pertinent polygon plan. After introducing your class to various polygons and the prefixes that help identify them, hand out bingo...
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Worksheet
Alberta Learning

Area and Perimeter of Irregular Shapes

For Students 3rd - 6th Standards
Evaluate young mathematicians' understanding of area and perimeter with this series of three assessment tasks. Challenging students to not only calculate the area and perimeter of irregular shapes, but to explain in writing their...
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Lesson Plan
Curated OER

Exercise 23--the Regular Pentagon on a Given Side

For Teachers 6th - 8th
Middle schoolers examine and study how to recognize the characteristics of a regular pentagon and demonstrate how to construct one. They become aware of associating a regular pentagon to its term of a double map and practice the concept...
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Worksheet
Mathster

Line and Rotational Symmetry

For Students 4th - 8th Standards
Challenge young mathematicians' understanding of symmetry. Provided with images of different shapes, letters, and national flags, students are tasked with identifying the lines of symmetry and order of rotational symmetry associated with...
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Lesson Plan
Mascil Project

Circular Pave-Stones Backyard

For Teachers 6th - 12th Standards
Pack the instructional activity into your plans. Young mathematicians learn about packing and optimization with the context of circular paving stones. They use coins to model the paving stones, and then apply knowledge of circles and...
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Lesson Plan
Curated OER

Platonic Solids

For Teachers 8th - 10th
Students identify different types of polygons. In this geometry lesson, students differentiate between convex and regular shapes. they identify the names of two and three-dimensional objects.
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Lesson Plan
Curated OER

Geometry in Tessellations

For Teachers All
Students examine tessellations and their geometric properties. Students also develop a better understanding of lines, planes, angles, and polygons.
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Lesson Plan
Curated OER

Surface Area and Volume

For Teachers 5th - 8th
Upper graders identify the surface area and attributes of figures that are measurable. They estimate, measure, and record perimeter, area, temperature change, and elapsed time, using a variety of strategies. They also determine the...
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Lesson Plan
Curated OER

Tunnel Traps

For Teachers 1st - 3rd
Students identify shapes that match specific shape descriptions involving a range of geometric terms and correct polygon names. They utilize a mathematics educational software program to gain practice.
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Worksheet
Curated OER

Geometric Shapes: Review of 2D and 3D Figures

For Students 5th - 6th
In this geometric shapes worksheet, learners identify 4 drawings as polygons or not, 1 drawing as regular or not and then write the name of 3 solid figures.
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Lesson Plan
Curated OER

Math: Shapes and More Shapes

For Teachers 6th - 8th
Students locate lines of symmetry in regular polygons and predict the number of lines of symmetry in an octagon. In three different polygons, they construct all lines of symmetry and after making their prediction about the octagon,...
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Lesson Plan
Curated OER

Coordinate Plane

For Teachers 10th
Tenth graders plot points on a coordinate plane. In this geometry lesson, 10th graders identify the different quadrants, plots points on a number line and coordinate plane and solve for the midpoint of line segments.
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Lesson Plan
Curated OER

Traditional American Indian Lodges

For Teachers 8th - 10th
Students explore the mathematical properties of traditional American Indian lodges. They examine the effect of increasing sides of a polygon, calculate the surface area of prisms and cylinders, and construct a classroom size pyramid...
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Lesson Plan
Curated OER

Noughts

For Teachers 6th - 11th
Young scholars try to figure out the strategies to the game Noughts. Students logic must play a part in the process of the game. Young scholars apply the symmetries of regular polygons. Students devise ways to critically follow a chain...
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Lesson Plan
Curated OER

Back to the Bees (Tesselations)

For Teachers 6th
Sixth graders observe the creation of a tessellation with hexagons. In groups, they work with polygons to discover what shapes can be used to create tessellations and explore the angle measurements of each shape. Using internet websites,...
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Lesson Plan
Curated OER

Polygonal Strings

For Teachers 6th
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...
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Worksheet
Curated OER

Tessellations Multiple Choice

For Students 7th - 9th
In this tessellations worksheet, students answer questions about the characteristics of tessellations.  They identify polygons that will and will not tessellate.  Students determine the sum of angles in a polygon tessellation.   This...
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Lesson Plan
Curated OER

Quadrilaterals

For Teachers 10th
In this geometry worksheet, 10th graders solve problems with quadrilaterals. They calculate the sum of the angles, find missing angles and identify properties of quadrilaterals. There are 16 questions with an answer key.
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Lesson Plan
Curated OER

Tessellations

For Teachers 9th - 10th
Learners create tessellations. In this geometry lesson, students use polygons to create different patterns by rotation. They identify the reasons for polygons to create the type of tessellation it does.
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Lesson Plan
Curated OER

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.
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Lesson Plan
Curated OER

Location, Location, Location

For Teachers 9th - 11th
Students investigate the properties of triangles. For this geometry lesson, students identify the location of different polygons. They identify the different properties of triangles and polygons.
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Lesson Plan
Curated OER

Keeping in Shape

For Teachers 3rd
Third graders describe patterns in terms of reflection and rotation symmetry, and translations. They design and make a pattern which involves translation, reflection, or rotation. They demonstrate why a given tessellation covers the...