Lesson Plan
Curated OER

An Introduction to Pi and the Area of a Circle

For Teachers 5th - 7th
Students explore measurements of a circle. In this lesson about circumference and radius, students practice calculating measurements of a circle. Students estimate, calculate, and practice with graphing all while learning how to find...
Lesson Plan
Curated OER

Geo-Critters (Geometry Critters)

For Teachers 2nd - 5th
Students read the book The Math Curse by Jon Scieszka and study geometry. In this geometry lesson, students identify geometric shapes and their properties. Students create a geo-critter.
Lesson Plan
Curated OER

Making Pictures from Smaller Shapes

For Teachers 2nd - 4th
Students investigate shapes. In this dimension and orientation of shapes lesson, students identify and color shapes, use shape stamps to form animals, glue shapes together to make other objects and describe how shapes are used.
Worksheet
Curated OER

Area and Periemeter

For Students 10th
In this geometry worksheet, 10th graders determine the area and perimeters of various quadrilaterals and triangles.  The one page worksheet contains ten problems.  Answers are not provided. 
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.
Lesson Plan
Curated OER

Exploring the Slopes of Parallel and Perpendicular Lines

For Teachers 8th - 10th
Learners calculate the slope of parallel and perpendicular lines.In this algebra lesson, students differentiate between parallel and perpendicular lines. They graph their lines using the slope of the equation.
Lesson Plan
Curated OER

Exploring the Slopes of Parallel and Perpendicular Lines.

For Teachers 8th - 10th
Students find the slopes for perpendicular and parallel lines. In this geometry lesson, students differentiate between parallel and perpendicular lines. They use Cabri software to create lines to compare.
Lesson Plan
Pennsylvania Department of Education

Classifying Figures on the Coordinate Plane

For Teachers 5th
Fifth graders use estimation to solve word problems. In this fractions lesson, 5th graders decide whether or not an answer to a work problem is reasonable by applying their knowledge of fractions, decimals and estimation. This lesson...
Lesson Plan
Curated OER

Perimeter of Triangles and Rectangles

For Teachers 5th
Fifth graders study perimeter. In this math lesson, 5th graders use Cheerios to find the perimeter of various polygons. Students discuss how to figure the perimeter of triangles, squares and rectangles.
Lesson Plan
Curated OER

Finding Areas of Plane Figures

For Teachers 9th - 10th
Students compute areas of squares, rectangles, and so on and summarize the formulas for computing areas and explain how the formulas are derived and understand the reasoning behind them.
Worksheet
Curated OER

Parallel Lines and Types of Angles

For Students 5th - 6th
In this angles and parallel lines worksheet, students solve 40 problems that pertain to parallel lines, supplementary, vertical, corresponding and alternate angles. There is instruction on the page with examples. This page is intended as...
Lesson Plan
Curated OER

Numbers as Descriptors

For Teachers 1st - 2nd
Students use numbers as descriptors. In this mathematical inquiry lesson, students use numbers to describe, classify, and compare plants. Students are made aware that numbers can be used to describe things in the world around them.
Worksheet
Curated OER

4 Shapes in 1

For Students 4th - 6th
In this geometric shape worksheet, learners respond to 4 questions that require them to connect the midpoints in the 4 figures and identify the new shape the connections create.
Worksheet
Curated OER

Creating Shapes

For Students 4th - 5th
In this geometry skills lesson, students respond to 4 questions that require them to examine the pictured shapes and follow the instructions to create new shapes out of them.
Worksheet
Curated OER

Shape Definitions

For Students 4th - 6th
In this shapes definitions worksheet, students match a set of descriptions with their correct shape names, 10 total, then answer a set of 4 additional questions. Answers included on page 2.
Lesson Plan
Curated OER

Math and Architectural Design in Relation to Rebuilding The World Trade Center

For Teachers 7th - 9th
Students discover building plans and practice reading measurements.  In this architectural design lesson, students investigate the areas of the specific World Trade Center locations that need to be rebuilt and determine the cost....
Worksheet
Curated OER

Silly Sammie Seal

For Students 9th - 11th
In this seal worksheet, students match deratives and intervals to their answer.  They match equivalent problems.  This one-page worksheet contains 22 problems.
Lesson Plan
Curated OER

Finding the Area of a Triangle

For Teachers 5th
Fifth graders investigate the area of a triangle. In this geometry lesson plan, 5th graders practice finding the area of a triangle using the correct formula: 1/2bh.
Worksheet
Curated OER

Vectors

For Students 9th - 11th
In this geometry worksheet, students investigate vectors. They add, subtract and identify the magnitude of each vector. There are 4 questions with an answer key.
Interactive
Curated OER

Geometry

For Students 9th - 10th
In this geometry worksheet, students identify the different shapes created by nets. They also identify the intersection of lines and planes. There are 5 questions with an answer key.
Worksheet
Curated OER

Geometry: Identify Figures Through Segments

For Students 2nd - 4th
In this geometry worksheet, students answer 5 questions, finding shapes using a figure with labeled line segments running through it. A reference website is given for additional resources.
Lesson Plan
Curated OER

Quadrilateral Bunny

For Teachers 9th - 11th
Students identify the properties representing quadrilateral. In this geometry lesson, students differentiate between special and regular quadrilaterals. They discuss and demonstrate hierarchy of quadrilaterals.
Lesson Plan
Pennsylvania Department of Education

Rotational Symmetry of Polygons and Other Figures

For Teachers 5th - 8th
Students explore geometry by participating in a shape rotation experiment. In this symmetry lesson, students identify the term symmetry and a list of other geometry vocabulary. Students analyze shapes as they are turned 90 degrees and...
Lesson Plan
Curated OER

Geometry Review Quiz

For Teachers 6th - 8th
Young scholars conduct a review that is done right before having a geometry quiz. They cover major topics that are part of the assessment. They use review cards as notes to pass to one another to reinforce the concepts before putting...

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