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Lesson Plan
Curated OER

Tessellating Ceiling Tiles

For Teachers 5th - 7th
Students transform polygons.  In this tessellating lesson, students design a picture containing a translation and a rotation.  They create a template of a translation or a rotation.  Students tessellate and decorate a...
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Lesson Plan
Curated OER

Volume

For Teachers 8th - 12th
Students, after reviewing the measuring of the lengths of sides of different shapes along with the calculation of their perimeters and areas, encounter what it means by the 'perimeter' of a polygon. They practice measuring units of...
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Lesson Plan
Curated OER

Polly and the Shapeshifter

For Teachers 9th - 11th
Students analyze the patterns in polygons and relate it to the rate of change. In this algebra lesson, students discuss the relationship between the data and the graph of the data.
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Lesson Plan
Curated OER

Diagonals of Quadrilaterals

For Teachers 9th - 12th Standards
Teach your mathematicians how to identify different polygons based on their diagonals. Relating quadrilaterals to the different number of diagonals formed, students use the TI to create a visual of their shape.
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Lesson Plan
Curated OER

Tessellations

For Teachers 3rd - 6th
Students learn and review basic geometric terms, definitions, and theory, including regular polygons, lines, angles, points, etc. They make a tessellating stamp and create a repeating work of art.
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Lesson Plan
Curated OER

Introducing Tessellations

For Teachers 6th - 12th
Students create tessellations to increase their knowledge of the applications of geometry. They explore the different shapes of polygons.
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Lesson Plan
Curated OER

Flip's Flag

For Teachers 5th
Fifth graders apply the symmetry and angle properties of polygons and use fractions to express the relationships between the areas of rectangles, squares, and triangles. They analyze various country flags and develop mathematical...
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Lesson Plan
Curated OER

The Amazing Inch and Measuring Up!

For Teachers 5th
Fifth graders study the metric and customary systems of measuring length with rulers, meter / yardsticks, and tape measures. They determine area of polygons and surface area and volume of three-dimensional shapes. They list as many...
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Lesson Plan
Curated OER

Geometry and Geoboard

For Teachers 6th
Sixth graders use geoboards and dot paper to experiment with geometric concepts. In this geometry instructional activity, 6th graders complete four activities using geoboards or dot paper including naming points on a coordinate plan and...
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Lesson Plan
Curated OER

The Overlooked Regular Pentagon

For Teachers 10th
Tenth graders discuss the history of geometry as it relates to pentagons. In this geometry lesson, 10th graders solve problems of a pentagon inscribed inside of a circle using ratio. They review other properties for shapes of polygons...
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Worksheet
Curated OER

Manhole Covers

For Students 9th - 12th
In this secondary mathematics activity, students determine the reason that manhole covers are round and not polygonal.  The one page activity contains one problem with the solution.
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Worksheet
Curated OER

Midpoints and Bisectors

For Students 9th - 10th
In this geometry worksheet, students calculate the midpoints of polygons using coordinate pairs. They find the  angle bisector, altitude and median of the given triangles. There are 33 questions.
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Worksheet
Curated OER

Area of 2D Shapes

For Students 9th - 12th
In this area instructional activity, students commence solving for area of squares and rectangles, and continue to parallelograms and triangles, and continue again to rhombi and trapezoids and finish with circles, polygons, and...
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Lesson Plan
Curated OER

Triangle Island

For Teachers 9th - 12th
Students calculate the altitude of triangles.  In the web based lesson, students explore the interior distance from a given point in a polygon to its side.  They compute the sum of these lengths. Students read life...
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Lesson Plan
Curated OER

Volume of Prisms

For Teachers 9th - 10th
Students calculate the volume of different polygons. In this geometry lesson plan, students identify the relationship between base and height. They calculate the area of each prism and cylinder.
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Lesson Plan
Curated OER

Classifying Triangles Based On Properties of Angles

For Teachers 5th Standards
The interactive lesson plan featured here calls for the use of a Smartboard for sorting and classifying shapes. Then, pupils discuss the rules they followed for sorting their shapes, particularly focusing on the properties of angles....
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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

Geometry Worksheet

For Students 10th - 12th
In this geometry worksheet, students find the area of four polygons. They compute the measure of an angle. Students find the length of the sides of a right triangle. They name one arc and find the measure of two arcs.
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Lesson Plan
Curated OER

Finding Perimeter and Area

For Teachers 3rd - 5th
Geometers find the perimeter and area of rectangles. They discuss the definitions and characteristics of rectangles and squares. In groups, they use yarn to discover the perimeter of squares and rectangles. They count cubes to explore...
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Worksheet
Curated OER

Sir Cumference and the First Round Table

For Students 5th - 6th
In this circumference worksheet, learners solve and complete 5 different figures illustrated on the sheet. First, they cut out each shape found on the bottom. Then, students use the shapes on the left as clues to create the corresponding...
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Graphic
Math Salamanders Ltd.

2D Shape Sheet Quadrilaterals

For Students 1st - 3rd
A one-pager featuring 2-D quadrilaterals.
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App
iMagine Machine

The Land of Venn - Geometric Defense

For Students 2nd - 5th Standards
Young mathematicians use their geometry skills to save the Land of Venn in an engaging math game. A fun way to reinforce children's understanding of basic geometric figures and shapes.
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Printables
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Houghton Mifflin Harcourt

Unit 6 Math Vocabulary Cards (Grade 5)

For Students 5th Standards
Acute angles, nets, and vertices are only a few terms that a set of flash cards includes. Among the 108 cards, two types are available; word cards printed in bold-faced lettering, and corresponding definition cards equipped with an...

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