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Geometry

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3D Shapes

- Activity -

Explore and describe geometric attributes in three-dimensional shapes.

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3D Views

- Activity -

Find the correct view of a certain side of a 3D object.

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Angle Properties

- Lesson plan -

Identify, estimate, and measure the angles of plane figures using appropriate tools.

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Angles

- Lesson plan -

Identify angles as acute, right or obtuse. Find the measure of an angle using a protractor.

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Angles

- Lesson plan -

Identify angles as right, less than a right angle or greater than right angle.

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Applying the Pythagorean Theorem

- Lesson plan -

Use and apply the Pythagorean theorem to find the hypotenuse and the legs of a right triangle.

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Area

- Lesson plan -

Find the areas of squares, rectangles, parallelograms and triangles.

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Area

- Lesson plan -

Develop strategies to determine the area of rectangles and plane figures.

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Area - Grid based

- Activity -

Find the area of a shape on a grid by counting squares.

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Area - Side lengths

- Activity -

Calculate the area of rectangles or compound figures using side lengths.

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Area of a Circle

- Lesson plan -

Derive the formula for the area of a circle. Find the area of a circle given the radius or diameter of a circle.

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Area of a Tapezoid

- Lesson plan -

Find the area of a trapezoid by using compound figures and by deriving the formula for the area of a trapezoid. Find the height given the area.

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Area of complex shapes

- Activity -

Calculate the area of parallelograms, triangles and trapezoids.

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Area of Irregular Figures

- Lesson plan -

Find the area of irregular figures by dividing them into familiar shapes (rectangles and triangles.)

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Area of Irregular Figures

- Lesson plan -

Find the areas of complex figures by dividing them into familiar shapes. Find the areas of each shape and sum to find the total area.

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Area of Irregular Figures

- Lesson plan -

Find the areas of complex or irregular figures by dividing them into familiar shapes. Find the areas of each shape and sum them to find the total area.

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