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Worksheet
Curated OER

Geometry Vocabulary

For Students 10th
In this geometry vocabulary worksheet, 10th graders are given different angles with different names. They must match the correct angle with the correct name. There are 45 questions dealing with angles, there is an answer key.
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Lesson Plan
Curated OER

Geometry Regents Questions: Isosceles Triangle Theorem

For Teachers 9th - 12th
In this isosceles triangle worksheet, students solve 19 multiple choice and short answer problems.  Students use the isosceles triangle theorem to determine unknown angle measures.
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Lesson Plan
Curated OER

Special Segments of Triangles Jigsaw Activity

For Teachers 11th - 12th
Students identify the special segments of triangles, the median, angle bisector, altitude, and perpendicular bisectors.
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Lesson Plan
Curated OER

Exploring Altitudes in Math

For Teachers 6th - 12th
Students draw and calculate altitudes. They draw the altitude of acute, right and obtuse triangles and calculate the altitude of a triangle using the Pythagorean theorem.
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Lesson Plan
Curated OER

Got Milk?

For Teachers 6th - 8th
Students measure the angles of a milk carton. They identify and label acute, right, and obtuse angles. Using appropriate tools, students determine the volume of a cube or a rectangular prism. Students complete worksheets to...
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Worksheet
Curated OER

Identify Triangles

For Students 5th - 6th
In this triangle activity, learners identify triangles as either, right, acute, obtuse, equilateral, scalene or isosceles. A reference web site is given for additional activities.
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Worksheet
Curated OER

Identify Triangles #

For Students 4th - 6th
In this triangle instructional activity, students identify triangles as scalene, equilateral, right, obtuse, acute or isosceles. A reference web site is given for additional activities.
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Worksheet
Curated OER

Identify Triangles #3

For Students 3rd - 5th
In this triangle worksheet, students identify triangles as obtuse, right, or acute, checking the correct answer. A reference web site is given for additional activities.
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Worksheet
Curated OER

Identify Triangles #2

For Students 5th - 6th
For this triangle worksheet, students identify a set of triangles as either acute, right or obtuse, checking the appropriate box beneath each. A reference web site is given for additional activities.
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Worksheet
Curated OER

Identify Triangles

For Students 4th - 6th
In this triangles learning exercise, students identify triangles as either Acute, right or obtuse. A reference web site is given for additional activities.
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Worksheet
Curated OER

Identifying Types of Triangles

For Students 5th - 6th
In this triangle worksheet, students check the appropriate label for triangles: right, acute, obtuse, scalene, isosceles or equilateral. A reference web site is given for additional activities.
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Worksheet
Curated OER

Identify Triangles

For Students 4th - 6th
In this triangle worksheet, students check the correct answer, identifying triangles as either right, obtuse, acute, scalene, isosceles or equilateral. A reference web site is given for additional activities.
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Lesson Plan
Curated OER

2-D Geometry

For Teachers 3rd
Third graders describe and compare attributes of two-dimensional shapes. They explain geometric terms, angles and shapes. Students demonstrate each vocabulary word with their body and they mirror the body positions associated with each...
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Lesson Plan
Curated OER

Review of Triangles

For Teachers 8th - 10th
Students investigate the Pythagorean Theorem. In this geometry lesson, students define angles and sides of right triangles. They calculate the area and surface area using formulas derived by the Pythagorean Theorem.
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Worksheet
Curated OER

Triangles

For Students 3rd - 4th
In this triangles worksheet, learners identify 3 triangles by the length of their sides and 3 triangles according to their internal angles.
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Worksheet
Curated OER

Measure Me

For Students 4th - 5th
In this math worksheet, students measure the different angles for the six problems. They use a protractor and also estimate the solutions.
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Lesson Plan
Curated OER

Types of Triangles

For Teachers 1st - 2nd
Learners classify triangles by the length of their sides. In this geometry activity, students use a white board to demonstrate the angles of various triangles. Learners construct an equilateral, isosceles, and a scalene triangle.
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Lesson Plan
Curated OER

Pythagorean Theorem

For Teachers 7th - 10th
Students find the different ratios of a triangle. In this geometry lesson, students use the Pythagorean Theorem to solve for missing sides and angles on a right triangle. They use a robot to create a right triangle.
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Lesson Plan
Curated OER

Geometry Review

For Teachers 7th
Seventh graders explore basic geometric definitions involving angles, area, and circumference. To reinforce basic geometric concepts, they play a "lightning Flash" card game. Students discuss chores or jobs that require the use of...
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Worksheet
Curated OER

Easy Worksheet: Types of Triangles

For Students 9th - 12th
In this types of triangles worksheet, students solve 6 short answer problems. Students identify the type of triangle being described according to side length or angle measure.
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Lesson Plan
Dick Blick Art Materials

Start with a Circle...

For Students K - 12th
The Golden Ratio. The Divine Proportion. Yup. It's math and art blended into one colorful activity. Young artists combine colored tissue paper circles and parts of circles to create geometric patterns. As a bonus, kids get to figure out...
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Lesson Plan
Curated OER

"Alphabet City and City by Number" by Stephen T. Johnson; "Shapes, Shapes, Shapes" by Tana Hoban

For Teachers 6th - 8th
Young scholars review the definition of angles by identifying those in the classroom and putting them on a graphic organizer.
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Lesson Plan
Curated OER

Our Geometic World

For Teachers 1st - 5th
Students walk around the neighborhood and identify various polygons and lines in buildings, nature and other objects. They design a building using various geometric patterns, shapes and lines. Students complete a descriptive writing of...
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Lesson Plan
Curated OER

Point Comparisons

For Teachers 7th - 9th Standards
Young geometers investigate two-dimensional figures using coordinate grids. They identify polygons and draw examples of their reflection, rotation, and translation on a coordinate grid. And they complete a worksheet practicing examples...

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