Lesson Plan
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Diagonals of Quadrilaterals

For Teachers 9th - 10th
Students find the diagonals of the quadrilaterals. In this geometry instructional activity, students identify and use properties of quadrilaterals. They define different parts of a quadrilateral shape.
Lesson Plan
Curated OER

PLATE MOVEMENTS AND CLIMATE CHANGE

For Teachers 7th - 12th
Students label three geological maps with continents provided to analyze the relationships between the movement of tectonic plates and the changes in the climate. In small groups, they discuss their findings and form hypotheses about the...
Lesson Plan
Curated OER

Classifying and Constructing Corners

For Teachers 5th
Fifth graders, after seeing Honeycomb examples, complete a Classifying Angles worksheet, Clock worksheet, and Defining Angles worksheet.
Lesson Plan
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The Plane! The Plane!

For Teachers 5th
Fifth graders work with polygons.
Lesson Plan
Curated OER

Geometry and Measurement

For Teachers 6th - 8th
Students view a right triangle displayed by the teacher. Students measure legs and the interior angles of the triangle. They look for a pattern or relationship between the legs and angles. Students use pegboards and string to create more...
Lesson Plan
Curated OER

Tiling the Plane

For Teachers 5th
Fifth graders use pattern blocks and triagular grid paper to reivew shape names, be introduced to the concept of a tiling of the plane, and determine which pattern blocks tile the plane. They are asked if they comprehend what a...
Lesson Plan
Curated OER

Geometry and Quilting

For Teachers 4th
Fourth graders combine geometry and language arts skills while examining quilt-making. After identifying the geometric shapes contained in quilts, they write stories to encompass the quilt border. Students conclude by creating and...
Lesson Plan
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Draw It!

For Teachers 3rd - 4th
Students follow directions to make two- and three-dimensional shapes. Focusing on polygons, they use the shapes to solve real-world problems and review with the class. They read two of Shel Silverstein's poems and discuss the...
Worksheet
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Worksheet 32 - Fall 1995

For Students 11th - Higher Ed
In this math worksheet, students find the area enclosed by the parabola’s arch and the x-axis. They are asked about the highest point of the parabola in terms of a.
Worksheet
Curated OER

Parabolas

For Students 10th
In this parabolas worksheet, 10th graders solve and complete 15 different problems related to parabolas. First, they define parabola and its information related to graphing one. Then, students write each equation in standard form. They...
Lesson Plan
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Fractals

For Teachers 10th - Higher Ed
Students explore the concept of fractals. In this fractal lesson, students use applets to explore Koch's Snowflake, Sierpinski's Triangle, and other fractals. Students develop these concepts through exploration and teacher guided...
Interactive
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My Test Book: Geometry skills

For Students 3rd - 4th
In this online interactive math skills learning exercise, students solve 10 multiple choice math problems regarding geometry skills. Students may view the correct answers.
Worksheet
Curated OER

Geometry Journal: Distance

For Students 10th - 12th
In this distance worksheet, students determine how to find the distance between points.  They use the distance formula and justify their answers. This two-page worksheet contains 2 problems.  Answers are listed on the last page.
Lesson Plan
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Triangle Puzzler

For Teachers 5th - 8th
Students are introduced to some basic concepts of geometry. They explain that the definition of a triangle is a figure with three sides, three angles, and three points. Triangles can be named by using three points in their correct sequence.
Lesson Plan
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Parts of a Circle

For Teachers 6th
Sixth graders use yarn, paper plate, and other materials to identify parts of a circle. In this parts of a circle lesson plan, 6th graders identify the circumference, radius, diameter, and other parts of a circle.
Lesson Plan
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Platonic Solids

For Teachers 8th - 10th
Students identify different types of polygons. In this geometry lesson, students differentiate between convex and regular shapes. they identify the names of two and three-dimensional objects.
Lesson Plan
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Constructions of Isosceles and Equilateral Triangles

For Teachers 4th - 9th
Students explore the difference between drawing and constructing a triangle utilizing The Geometer's Sketchpad on the computer. They create, develop and script constructions for both isosceles and equilateral triangles. Each student has...
Worksheet
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Finding the Shortest Distance Between The Spider and The Fly

For Students 9th - 11th
In this word problem worksheet, students solve for the shortest distance between a spider and a fly.   The solution is provided.
Worksheet
National Council of Teachers of Mathematics

Perplexing Parallelograms

For Students 9th - 10th
In this geometry worksheet, young mathematicians divide a parallelogram into four, by choosing points along a diagonal.  Students calculate the area of each parallelogram and look for any patterns that may emerge.  The one-page...
Lesson Plan
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Similar and Congruent Triangles

For Teachers 2nd - 4th
Students create and classify different types of triangles using an online geo-board. They explore the concepts of similar and congruent as they discover how to draw similar and congruent triangles.
Lesson Plan
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Let's Measure

For Teachers 3rd
Third graders practice measuring different objects. They discover the concepts of ratio and proportion and practice converting numbers into the correct unit. They read stories as well to help them with the concepts.
Lesson Plan
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Yummy Shapes

For Teachers 1st - 2nd
Students explore space shapes learning about edges, corners, and faces. They enjoy shape soup as a culminating activity.
Lesson Plan
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Introduction to Slope Fields

For Teachers 11th - 12th
Students plot slope fields. In this introduction to slope fields lesson, students plot 12 slope fields for given differential equations.
Lesson Plan
Curated OER

Triangular Numbers Are Everywhere !

For Teachers 4th - 5th
In this math worksheet, pupils observe that the triangular numbers are associated with the sums of consecutive natural numbers beginning with 1.

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