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  • Geometry
Equations of Circles 2
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This lesson unit is intended to help teachers assess how well students are able to: translate between the equations of circles and their geometric features; and sketch a circle from its equation.

Subject:
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
07/31/2019
Estimating: Counting Trees
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This lesson unit is intended to help you assess how well students are able to: solve simple problems involving ratio and direct proportion; choose an appropriate sampling method; and collect discrete data and record them using a frequency table.

Subject:
Geometry
Mathematics
Material Type:
Assessment
Lecture Notes
Lesson Plan
Teaching/Learning Strategy
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Author:
http://map.mathshell.org/
Date Added:
06/24/2019
Estimations and Approximations: The Money Munchers
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CC BY-NC-ND
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This lesson unit is intended to help you assess how well students are able to: Model a situation; make sensible, realistic assumptions and estimates; and use assumptions and estimates to create a chain of reasoning, in order to solve a practical problem.

Subject:
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
06/24/2019
Evaluating Statements About Enlargements (2D and 3D)
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This lesson unit is intended to help teachers assess how well students are able to solve problems involving area and volume, and in particular, to help you identify and assist students who have difficulties with the following: computing perimeters, areas and volumes using formulas; and finding the relationships between perimeters, areas, and volumes of shapes after scaling.

Subject:
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
07/31/2019
Evaluating Statements About Length and Area
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CC BY-NC-ND
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This lesson unit is intended to help teachers assess how well students can: Understand the concepts of length and area; use the concept of area in proving why two areas are or are not equal; and construct their own examples and counterexamples to help justify or refute conjectures.

Subject:
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
07/31/2019
Generalizing Patterns: Table Tiles
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CC BY-NC-ND
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This lesson unit is intended to help teachers assess how well students are able to identify linear and quadratic relationships in a realistic context: the number of tiles of different types that are needed for a range of square tabletops. In particular, this unit aims to identify and help students who have difficulties with: choosing an appropriate, systematic way to collect and organize data; examining the data and looking for patterns; finding invariance and covariance in the numbers of different types of tile; generalizing using numerical, geometrical or algebraic structure; and describing and explaining findings clearly and effectively.

Subject:
Algebra
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
07/31/2019
Generalizing Patterns: The Difference of Two Squares
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CC BY-NC-ND
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This lesson unit is intended to help you assess how well students working with square numbers are able to: choose an appropriate, systematic way to collect and organize data, examining the data for patterns; describe and explain findings clearly and effectively; generalize using numerical, geometrical, graphical and/or algebraic structure; and explain why certain results are possible/impossible, moving towards a proof.

Subject:
Algebra
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
07/31/2019
Geometric Proof of the Distributive Property – GeoGebra
Conditional Remix & Share Permitted
CC BY-NC-SA
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This resource demonstrates the distributive property through the area of rectangles. You can manipulate the dimension by moving the slider.

Subject:
Algebra
Geometry
Mathematics
Material Type:
Diagram/Illustration
Simulation
Provider:
GeoGebra
Author:
jtmace11
Date Added:
07/31/2019
Geometric Solids
Read the Fine Print
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Students to explore various geometric solids and their properties in this student interactive, from Illuminations. Students can virtually manipulate and color each solid to investigate properties such as the number of faces, edges, and vertices. Students can explore tetrahedrons, cubes, octahedrons, dodecahedrons, icosahedrons, and irregular polyhedrons by toggling between solid and net to see different views of the selected shape.

Subject:
Geometry
Mathematics
Material Type:
Activity/Lab
Interactive
Provider:
National Council of Teachers of Mathematics
Author:
Illuminations
Date Added:
02/26/2019
Geometry (5th)
Conditional Remix & Share Permitted
CC BY-NC-SA
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This math unit teaches students to classify quadrilaterals into categories based on their properties; classify quadrilaterals in a hierarchy based on properties. This unit helps to explain that attributes belonging to a category of quadrilaterals also belong to all subcategories of that category. 

Subject:
Discrete Math
Geometry
Material Type:
Lesson
Unit of Study
Author:
OMAR LEMUS
Date Added:
02/26/2022
Geometry Problems: Circles and Triangles
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CC BY-NC-ND
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This lesson unit is intended to help teachers assess how well students are able to use geometric properties to solve problems. In particular, the lesson will help you identify and help students who have the following difficulties: solving problems by determining the lengths of the sides in right triangles; and finding the measurements of shapes by decomposing complex shapes into simpler ones. The lesson unit will also help students to recognize that there may be different approaches to geometrical problems, and to understand the relative strengths and weaknesses of those approaches.

Subject:
Geometry
Mathematics
Material Type:
Assessment
Lesson Plan
Provider:
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
06/24/2019