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Lesson Plan
Curated OER

Scale factors: Ratios and Proportions

For Teachers 8th - 11th
Students create building and models using scale factors. In this geometry lesson, students apply the properties of ratio and proportion to solve problems. They identify the means and extremes property of cross multiplication.
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Lesson Plan
Curated OER

Similar Triangles - Applied Problems

For Teachers 9th - 12th
Pupils differentiate between similar and congruent triangles. In this geometry lesson, students identify the angles of triangles using the similarity theorem. They apply concepts of triangles to the real world.
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Lesson Plan
Curated OER

Sketching Prisms

For Teachers 9th - 12th
Students sketch and create nets of different polygons.In this geometry lesson plan, students differentiate prisms from other three-dimensional shapes. They define the properties of prisms.
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Lesson Plan
Curated OER

Circles and Pi

For Teachers 9th - 11th
Students identify the relationship between the radius and Pi. In this geometry lesson plan, students calculate the circumference and area of a circle. They create visuals to help them see how the circumference relates to Pi.
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Lesson Plan
Curated OER

The Five Number Game

For Teachers 3rd - 5th
Students explain what it means to square numbers. They explain what it means to cube numbers. Students define prime numbers using their own language. They are introduced to the problem by playing one game as a class.
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Lesson Plan
Curated OER

Going out of Business: Pythagorean Theorem

For Teachers 8th - 9th
Young scholars find the length of diagonals.  In this Pythagorean theorem lesson, students use the Pythagorean theorem to determine the length of diagonals. 
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Lesson Plan
Curated OER

Investigation - Patterns

For Teachers 3rd - 4th
Students create a pattern out of pattern blocks. In this math lesson, students work with a partner to investigate the pattern they have. Within that group, students continue to design the pattern by adding the next two pieces....
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Lesson Plan
Curated OER

Squares, Square Roots, and Exponential Expressions

For Teachers 7th - 8th
Students explore the concepts of square roots and exponential expressions. In this square root and exponential expression lesson, students complete an investigation called Building A Square Patio. Students use color tiles to develop the...
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Lesson Plan
Curated OER

Median of a Trapezoid

For Teachers 8th - 10th
Students find the median of trapezoids and other polygons. In this geometry activity, students identify important properties of trapezoids. They create trapezoids and polygons using Cabri software.
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Lesson Plan
Curated OER

Surface Area of Pyramids

For Teachers 9th - 12th
Pupils identify the surface area of pyramids and other polygons. In this geometry instructional activity, students find the different measurements for the different parts of a polygon. They use the surface area formula to solve for the...
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Lesson Plan
Curated OER

Symmetry

For Teachers 9th - 11th
Students identify the different symmetry in polygons. For this geometry lesson, students identify line, rotational and point symmetry in different objects. They find the symmetry with 90% accuracy.
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Lesson Plan
Curated OER

Euler Characteristic

For Teachers 9th - 11th
Students identify the different properties of Euler's Characteristics. In this geometry lesson, students identify the shape and surface a polygon. They relate the concept of Euler to solving real world problems.
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Lesson Plan
Curated OER

Measuring Body Angles

For Teachers 8th - 10th
Young scholars use technology to graph and compare angles. In this geometry lesson, students range of motion in the environment. They identify the missing parts of polygons using similarity and congruence.
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Lesson Plan
Curated OER

Troublesome Towers

For Teachers 8th - 10th
Students observe solids and identify parts that make up the surface area. In this geometry lesson plan, students calculate the surface are of solids and cones. They find polygons and solids in the real world.
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Lesson Plan
Curated OER

Determine the Coordinate of Transformations

For Teachers 8th - 11th
Students investigate transformation on a coordinate plane. In this geometry activity, students identify pairs of coordinates and their location on the grid. They perform rotation and reflection of each polygon.
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Lesson Plan
Curated OER

Effect on Surface Area and Volume

For Teachers 8th - 10th
Young scholars identify the effect the change of dimensions causes for the volume and surface area. In this geometry lesson, students compare perimeter, area and volume as they play around with the dimensions of the polygons. They...
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Lesson Plan
Curated OER

Math: Geometric Fun and Games

For Teachers 3rd
Third graders discover geometric shapes by completing a series of games and activities. Using ropes with knots tied every foot, they make shapes such as squares, triangles, and hexagons. In pairs, 3rd graders use pattern blocks to...
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Lesson Plan
Curated OER

Shapes

For Teachers K
Students review basic shapes, such as circles, squares, triangles, and rectangles, find objects in those shapes in classroom, watch Clifford's Fun with Shapes video, practice reproducing four shapes, and rotate through four classroom...
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Lesson Plan
Curated OER

What Goes Around

For Teachers 4th
Fourth graders investigate the relationships between the area and perimeters of squares and rectangles. They calculate the perimeter of rectangles and squares using a formula. Students investigate the relationship between the perimeter...
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Lesson Plan
Curated OER

The Difference of Two Squares

For Teachers 8th - 10th
Young scholars practice the use of number properties through exploring the difference of two squares, creating an array model for multiplication, and work with decimal numbers. In groups, students explore patterns in an array and...
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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

Tessellations: Use Angles To Show That Shapes Will or WIll Not Tessellate

For Teachers 6th - 8th
Middle schoolers observe a selection of shapes. They identify which shapes will tessellate and justify their answer. Students apply the symmetry and angle properties of polygons to create tessellations.
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Lesson Plan
Curated OER

Angle Benchmarks

For Teachers 6th
Sixth graders discuss the characteristics of specific angles and then use the information to to identify and estimate given angles. The class goes outside, identifies north, and turns a specified amount of degrees. Using a given compass,...
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Lesson Plan
Curated OER

Unit Perimeters and Areas

For Teachers 9th - 11th
Students use Geometers SketchPad to find the area and perimeter of several shapes. For this geometry lesson, students determine area of rectangles and progress through irregular polygons. None of the referenced worksheets are included...