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Lesson Plan
Curated OER

Make a Box

For Teachers 10th - 12th
Students use specific dimensions to create a box. In this geometry instructional activity, students analyze the different properties of two and three dimensional shapes. They make conjectures and use it to solve problems.
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Lesson Plan
Curated OER

Identifying Lines of Symmetry

For Teachers 8th - 10th
Students calculate the lines of symmetry using polygons. In this geometry instructional activity, students graph, compare and estimate using collected data. They identify different attributes to the polygons based on their sides.
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Lesson Plan
Curated OER

Teaching the Tr'panier Trapezoid Kite

For Teachers 3rd - 6th
Students analyze how the parts of a system go together and how these parts depend on each other. They comprehend the forces in terms of strength and direction. Students observe, measure and describe weather indicators.
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Lesson Plan
Curated OER

Slides, Flips and Turns

For Teachers 3rd
Third graders are introduced to different types of transformations. As a class, they describe how a stuffed animal slides across the floor and use themselves to demonstrate as well. Individually, they flip and turn in different...
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Worksheet
Curated OER

Geometry, Word Search Puzzle

For Teachers 6th - 8th
In this math instructional activity, students look for the words that are related to the math words used in the practice of geometry. They also practice spelling.
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Unit Plan
Cuemath

Cuemath: Angle Side Angle

For Students 9th - 10th Standards
Learn all about the basic properties of a cone. This lesson targets the ASA congruence theorem using real-life examples and has interesting interactive practice questions.
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Unit Plan
Texas Education Agency

Texas Gateway: Generalizing Geometric Properties of Ratios in Similar Figures

For Students 9th - 10th Standards
Students will investigate patterns to make conjectures about geometric relationships and apply the definition of similarity, in terms of a dilation, to identify similar figures and their proportional sides and congruent corresponding...
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Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: G Co When Does Ssa Determine Triangle Congruence?

For Teachers 9th - 10th Standards
In this task, we are told that two triangles share two sets of congruent sides and one pair of congruent angles and that these two triangles must be congruent based on the reasoning given. Students are asked to analyze this reasoning to...
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Activity
Texas Instruments

Texas Instruments: Copying an Angle

For Teachers 9th - 10th Standards
Explore relationships (including congruence and similarity) among classes of two- and three-dimensional geometric objects, make and test conjectures about them, and solve problems involving them.
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Activity
Texas Instruments

Texas Instruments: Similar Figures Discovery Activity

For Teachers 9th - 10th Standards
Students can use Cabri Jr. to discover two properties of similar triangles: corresponding angles are congruent and corresponding sides are proportional.
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Activity
National Council of Teachers of Mathematics

Nctm: Figure This: Math Challenges for Families

For Students 2nd - 8th
Students, teachers, and parents alike will enjoy this challenging math site. It contains a clever brain teaser section plus creative problems related to algebra, geometry, measurement, numbers, statistics, and probability. A Spanish...
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Unit Plan
CK-12 Foundation

Ck 12: Geometry: Congruent Figures

For Students 6th - 8th Standards
[Free Registration/Login may be required to access all resource tools.] In this tutorial, students recognize congruence and find unknown measures of angles. They can examine guided notes, review guided practice, watch instructional...
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Unknown Type
Khan Academy

Khan Academy: Similarity and Transformations

For Students 9th - 10th Standards
Given two polygons, try to map one onto the other using angle-preserving transformations, and determine whether they are similar. Transformations are done in "intuitive mode." Students receive immediate feedback and have the opportunity...
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PPT
Sophia Learning

Sophia: Corresponding Parts: Lesson 5

For Students 9th - 10th Standards
This lesson will define the phrase corresponding parts (e.g. angles, sides, etc.). It is 5 of 5 in the series titled "Corresponding Parts."
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Unit Plan
Sophia Learning

Sophia: Similarity

For Students 9th - 10th Standards
This learning tutorial describes the characteristics of similar figures and how to use scale factor and proportions to determine missing side lengths. The lesson includes PowerPoint presentations and videos demonstrating how to solve...
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Lesson Plan
Shodor Education Foundation

Shodor Interactivate: Lesson: An Introduction to Quadrilaterals

For Teachers 9th - 10th Standards
Quadrilaterals-parallelograms, rectangles, and trapezoids-are thoroughly introduced in this lesson plan for upper elementary and middle school learners. Lots of resources are linked to it to help support the teacher and students....

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