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Lesson Plan
Government of Hong Kong

Areas and Volumes - 2D Shapes

For Teachers 3rd - 6th Standards
Unfortunately for young mathematicians, the world isn't made entirely of parallelograms, triangles, and trapezoids. After first learning the area formulas for these common shapes, students apply this new knowledge to determine the area...
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Lesson Plan
Curated OER

Area of Tangram Pieces

For Teachers 3rd - 4th
Mathematicians calculate the area of a tangram piece without using formulas. They use a geometry journal to record activities during this lesson. They make a set of tangrams and use them to compute area. They use what they discover to...
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Lesson Plan
Curated OER

Finding the Area of Shapes

For Teachers 3rd - 5th
In this area of shapes unit, upper graders participate in hands-on problem solving activities to find the formulas for the area of a parallelogram, a triangle, and a trapezoid. They manipulate the geoboard to explore relationships among...
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PPT
Curated OER

Area and Perimeter

For Teachers 4th - 5th
Another good presentation by Christine Berg is here for you. In it, learners are coached on definitions of area and perimeter and are shown how to perform calculations for both. They also see how to calculate the area of a triangle by...
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Unit Plan
Arizona Department of Education

Area and Perimeter of Regular and Irregular Polygons

For Teachers 3rd - 6th Standards
Extend young mathematicians' understanding of area with a geometry lesson on trapezoids. Building on their prior knowledge of rectangles and triangles, students learn how to calculate the area of trapezoids and other irregular...
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Worksheet
Doing Maths

Area of Various Shapes

For Students 3rd - 6th Standards
Find the area of triangles, rectangles, and parallelograms using this metric activity.
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Worksheet
Curated OER

Area - Parallelograms and Trapezoids

For Students 4th - 6th
For this finding the area of geometric shapes worksheet, students observe parallelograms and trapezoids and use the information given to find their areas. Students solve 4 problems.
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Lesson Plan
Curated OER

Finding The Area Of Shapes

For Teachers 4th
Fourth graders investigate the concept of computing the area using different shapes. They use prior knowledge in order to devise a formula for a parallelogram. Scaffolding is provided by the teacher to find the formula of area for...
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Lesson Plan
Curated OER

Triangles

For Teachers 3rd - 5th
This unit enables scholars to apply the rule for area of a triangle (area equals half base times height). They practice multiplication and division strategies as they calculate areas.
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Lesson Plan
Curated OER

Cut - Stretch - Fold

For Teachers 2nd - 4th
Students work on determining the area of a tangram piece without using a formula by working with geoboards, graph paper, and tangram pieces. After completing the activity, they apply their experience to determining a formula for finding...
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Worksheet
Curated OER

Measurement Word Problems

For Students 4th - 6th
Learners complete word problems dealing with perimeter, area, length of sides, and more. They complete 10 multiple choice word problems.
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Lesson Plan
Curated OER

Geometry: Area

For Teachers 2nd - 6th
Learners visit various websites to calculate the area of circles, triangles, rectangles, trapezoids, and parallelograms. They explore math problems and play interactive games dealing with geometry.
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Worksheet
Curated OER

Fraction Patterns Worksheet

For Students 3rd - 6th
For this fractions and patterns worksheet, students make patterns of parallelograms and trapezoids using pattern blocks. Students complete 6 problems.
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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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Assessment
Los Angeles County Office of Education

Assessment For The California Mathematics Standards Grade 4

For Students 4th Standards
Have scholars show what they know with a 20-page assessment aligned to the California State Standards. The test covers concepts such as large and whole numbers, all four mathematical operations, fractions, decimals, geometric figures,...
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Learning
School Mathematics Project

Resource Sheets

For Students 4th - 8th Standards
This extensive and far-reaching collection of worksheets puts a new twist on many basic concepts. Learners use multiplication to trace a path from one point to another, tile a plane by converting between improper and proper fractions,...
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Lesson Plan
Curated OER

The Chicken Run

For Teachers 4th
Fourth graders work in a group of 4 to make rectangle with a 12m length of string. They discuss its perimeter and how they would calculate its area. Then another group of 4 make another rectangle and estimate if the area would be greater...
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Lesson Plan
Curated OER

"Sir Cumference and the First Round Table" by Cindy Neuschwander

For Teachers 4th - 6th
Students analyze characteristics of various 2 dimensional shapes and explore their properties and use various vocabulary terms to discuss geometric relationships.
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Lesson Plan
Curated OER

Introducing Powers and Models

For Teachers 4th - 6th
Students construct two dimensional models to illustrate squared numbers. For this geometry lesson, students use graph paper and an x/y axis to build squares exponentially. Students identify powers and relationships between various...
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Lesson Plan
Curated OER

Geoboard Ideas

For Teachers 3rd - 4th
Students build polygons on their geoboards. In this geometry lesson plan, students build and then draw it on paper and label it. Students then switch with a partner to try an make a symmetrical shape.
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Lesson Plan
Curated OER

Math Quilts

For Teachers 2nd - 6th
Pupils examine geometric shapes. In this geometric shape lesson plan, students examine how geometric shapes flip, turn, and slide to create a pattern. Pupils analyze the role that quilts played in helping slaves escape to freedom. ...
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Lesson Plan
Curated OER

You Can Count on Squares!

For Teachers 4th
Fourth graders engage in and explore to develop mathematical, specifically algebraic, ideas. Although the tasks are built around measurement, they are algebraic to the extent that they require 'formulae' to be derived form the geometric...
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Lesson Plan
Curated OER

Peter's String

For Teachers 4th - 6th
Students are introduced to the math problem and consider how they could approach it. In pairs, students investigate Peter's conjecture in any way they see fit. They then share their answers with the class.

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