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Lesson Plan
Curated OER

Area and Perimeter

For Teachers 10th
Learners find the area and perimeter of regular polygons and composite figures and examine the effect on the area and perimeter of a figure if the dimensions are multiplied by a constant. The nine page worksheet contains thirty-seven...
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Lesson Plan
Curated OER

Know Your Polygons!

For Teachers 3rd - 8th
Learners identify and categorize different polygons. In this polygons lesson plan, students research and identify properties of polygons,  identify different polygon shapes, and categorize different triangles and quadrilaterals.
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Lesson Plan
Curated OER

Finding Area

For Teachers 4th
Fourth graders explore how to find the area of a rectangular object. As a class, they discuss definition of area and strategies for finding area. The teacher models finding the area of an object by counting squares. Students observe...
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Worksheet
Curated OER

Standard Numerical Quadrature

For Students 11th - Higher Ed
For this math worksheet, students explore the concept of numerical quadrature by reading the definition. Students sketch an approximation for the trapezoid.
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Lesson Plan
Curated OER

Measurement: Finding Areas of Rectangles

For Teachers 3rd - 5th Standards
Gardening geometers construct the formula for the area of a rectangle by viewing a video revolving around two young people, their lawn mowing business, and their need to charge by the square meter. A relevant real-life application lesson!
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Lesson Plan
Curated OER

Guess My Shape

For Teachers Pre-K - 1st
Learners play a game with shapes. They work in groups to identify the names and characteristics of various shapes. They give each other clues to see if others can identify the shape being described. This is a great hands on activity.
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Printables
Virginia Department of Education

Middle School Mathematics Vocabulary Word Wall Cards

For Teachers 5th - 9th
Having a good working knowledge of math vocabulary is so important for learners as they progress through different levels of mathematical learning. Here is 125 pages worth of wonderfully constructed vocabulary and concept review cards....
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Lesson Plan
Curated OER

Geometry Fun

For Teachers 3rd - 5th
Learners learn the basic definitions of a quadrilateral, parallelogram, rectangle and square and explain the relationship/classification process between them.
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Lesson Plan
Curated OER

Naming Shapes

For Teachers 4th - 6th
Students study geometric shapes and practice naming them properly. In this geometry activity, students work in groups to give definitions of the vocabulary to each other in their own words. Students also visit a lower grade and teach...
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Lesson Plan
Curated OER

Rhombi

For Teachers 4th - 5th
Students examine the rhombi or diamond shape and compare it to the square. Students are challenged to create as many flat rhombus shapes as possible and develop a definition for the rhombus shape in 20 minutes while working in teams of...
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Lesson Plan
Willow Tree

Transformations

For Students 8th - 11th Standards
How does something go from here to there? Describe it with a transformation. Young mathematicians learn how to translate, reflect, rotate, and dilate an image. 
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Worksheet
Curated OER

Calculating the Perimeter of a Square

For Students 4th
A quick definition and the formula for finding the perimeter of a square is provided at the top of this worksheet. After reading the description, 4th graders must find the perimeter of the 3 given squares by adding or multiplying. This...
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Worksheet
Curated OER

Calculating the Area of a Rectangle

For Students 4th
A quick definition and the formula for finding the are of a rectangle is provided at the top of this worksheet. After reading the description, 4th graders must find the area of the 3 given rectangles by adding or multiplying. This is an...
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Lesson Plan
Curated OER

Relationships in Geometry

For Teachers 3rd - 5th
Young scholars show the correlation between quadrilaterals, parallelograms, rectangles and squares.
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Worksheet
Curated OER

Polygons and Sketching

For Students 8th - 10th
In this geometry worksheet, students define and draw quadrilaterals. They differentiate between the different shapes. There are 3 questions with an answer key.
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Lesson Plan
Curated OER

Lines In Geometry

For Teachers 8th - 10th
Students define important vocabulary words using a dictionary. In this geometry lesson, students identify and use properties of triangles to solve problems. They identify the median. altitude and angles as well as properties of...
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Worksheet
Curated OER

Geometry Assessment-"Chapter 2"

For Students 7th - 8th
In this geometry worksheet, students match terms with definitions, and complete short answer questions about polygons and congruency.
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Lesson Plan
Curated OER

Shape and Space: Symmetry

For Teachers 3rd - 5th
Students discuss and work with lines of symmetry. In this symmetry lesson, students start with a warm up activity on metric conversion. They talk about the definition of symmetry and reflection before completing a worksheet.
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Worksheet
Curated OER

Lines of Slope

For Students 9th
For this lines of slope worksheet, 9th graders solve and complete 40 various types of problems. First, they find the equation of the lines described and write in slope-intercept form. Then, students graph each equation. They also find...
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Lesson Plan
Curated OER

Area and Perimeter of Rectangles

For Teachers 3rd - 5th
Discover the difference between area and perimeter. Learners are grouped in twos and threes and each group has one advanced/gifted learner to serve as the peer helper. They receive manipulatives to help them determine the area and...
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Lesson Plan
Curated OER

Algebra/Geometry Institute: Area of Polygons

For Teachers 6th - 8th
Students find the area of polygons.  For this area of polygons lesson, students find the area of parallelograms, rectangles, squares, and other polygons.  They identify each given figure and determine the appropriate formula needed to...
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Lesson Plan
Curated OER

Area of Parallelograms and Triangles

For Teachers 8th - 10th
Students explain the formula for finding the area of a paralellogram and its relation to the area of a rectangle. Finally, they construct the formula for the area of a paralellogram.
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Worksheet
Mt. San Antonio Collage

The Trapezoid

For Students 9th - 12th Standards
Enjoy this nicely organized worksheet that puts together multiple problems regarding trapezoid proofs. The resource can be used as a guide that begins with proving properties and ends with solving for measures of line segments.
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Assessment
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Curated OER

Congruent Segments

For Students 7th - 9th Standards
The task, should your class decide to take it, is to list a series of reflections that transfer a line segment from one position to another.