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Worksheet
Curated OER

Lines and Strings

For Students 4th - 6th
In this lines and strings worksheet, students connect the letters along the outside of the box with string to create different kinds of lines. Students complete 4 problems.
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Lesson Plan
Curated OER

Conic Sections and Locii

For Teachers 9th - 11th
Students differentiate between ellipse and hyperbola. In this algebra lesson, students graph and solve elliptical equations. They use the cabri program to create the different conics and move them around.
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Lesson Plan
Curated OER

Shapes Are Everywhere

For Teachers 3rd
Third graders explore pattern blocks noticing their similarities and differences and share their observations with others. They classify shapes by discussing sides and angles and combine pieces to make new shapes.
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Lesson Plan
Curated OER

Identifying and Describing Polygons

For Teachers 8th - 10th
Learners identify the different properties of polygons. In this geometry instructional activity, students differentiate between polygons and non-polygons. They review important vocabulary to help them understand the properties of polygons.
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Lesson Plan
Curated OER

Side Splitter Triangles

For Teachers 8th - 11th
Students investigate the side splitter theorem. In this geometry instructional activity, students estimate and solve problems dealing with ratios and proportions. They identify angles created by lines that are parallel.
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Lesson Plan
Curated OER

Are We Sure They Are Parallel?

For Teachers 4th
Fourth graders explore the definition and properties of parallel lines. This high level lesson plan has students calculate the slope of the two parallel lines, and draw the lines on a Caretsian coordinate system.
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Lesson Plan
Curated OER

Venn Diagram and Shape Sorting Lesson Plan

For Teachers 2nd - 4th
Students use Venn diagrams to represent classifications of shapes and to use counting arguments to find the number of objects in a given set.
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Lesson Plan
Curated OER

Coordinate Grid: Mapping an Archaeological Site

For Teachers 6th - 8th
Students examine how archaeologists preserve context of sites through use of rectangular grid or Cartesian coordinate system, and develop sense of distance by pacing off and estimating distances.
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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

A Perpendicular Pilgrimage

For Teachers 9th
Ninth graders design a safe passage through a 2-D obstacle. In this geometric math instructional activity, 9th graders engage in a hands on activity to better understand the concept of geometric and algebraic perpendicularity. Students...
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Lesson Plan
Curated OER

Faces, Vertices, Edges

For Teachers 9th - 10th
Students identify the parts of three dimensional objects. In this geometry lesson, students find the number of faces, edges and vertices. They differentiate between prisms and polyhedra.
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Lesson Plan
Curated OER

Choosing a Summer Job

For Teachers 7th - 9th Standards
What did you do over your summer vacation. Young wage earners must compare summer job options, and determine when each job earn the same amount and what that amount be. This be done by creating, graphing, and solving systems of...
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Lesson Plan
Curated OER

Math: Gears and Wheels

For Teachers 12th
Twelfth graders solve problems involving linear and angular speed. Using information about a compact disc, they solve the problem using multiple rates and conversion factors. Students also solve additional problems involving bicycle...
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Worksheet
Curated OER

Polygons

For Students 4th
In this polygons worksheet, 4th graders identify and name the 4 polygons drawn on the bottom of the worksheet and then draw a triangle, hexagon and a quadrilateral.
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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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Worksheet
Curated OER

Pairs of Lines

For Students 9th - 10th
In this geometry worksheet, students differentiate between perpendicular and parallel planes and lines. They identify segments that are parallel and perpendicular to sides. There are  22 questions.
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Lesson Plan
Curated OER

Light Bounce

For Teachers 9th - 11th
Students solve problems involving triangles. In this geometry lesson plan, students apply properties of triangles to find the missing angles and sides. They identify angles of parallel lines cut by a transversal.
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Lesson Plan
Curated OER

Triangle Exterior Angles Theorem

For Teachers 7th - 9th
Learners identify the measure of missing exterior angles. For this geometry lesson,students define and apply the exterior angle theorem to solve problems. They use Cabri software to create different angles and make investigations.
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Lesson Plan
Curated OER

Making Parallel Lines

For Teachers 8th - 10th
Students differentiate between parallel and perpendicular lines. In this geometry lesson, students make conjectures and apply it to solve real life situations. They collect data and make predictions based on the data.
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Lesson Plan
Curated OER

Focusing on Lenses

For Teachers 3rd - 5th
Young scholars explore scientific observations by examining the parts of a microscope. In this optics lesson plan, students discuss the importance of a focal point and focal distance when utilizing an optical device such as a microscope....
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Lesson Plan
Curated OER

Geometry House!

For Teachers 4th
Fourth graders use computer drawing tools to create a house of geometric shapes.
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Lesson Plan
Curated OER

Venn Diagram Lesson Plan

For Teachers 3rd - 5th
Learners use Venn diagrams in order to classify different objects and numbers. They then use "Venn Diagram Shape sorter" applets on the computer.
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Lesson Plan
Curated OER

2-D Geometry

For Teachers 3rd
Third graders are introduced to new vocabulary related to Geometry. As each word is mentioned, they demonstrate the word with their body. In groups, they identify the similarities and differences between each line and angle. To end...
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Lesson Plan
Curated OER

Making Tangram Pieces by Folding Paper

For Teachers 3rd
Third graders follow directions to make a set of tangram pieces. After reading a story, they compare and contrast the differences between two-dimensional shapes. To end the lesson, they use the tangram pieces to create their own...