Geometry Problems: Circles and Triangles

This lesson unit is intended to help you 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.
  • 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.
Resource ID#: 46929 Type: Lesson Plan
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Direct Link: http://map.mathshell.org/materials/lessons.php?taskid=222&subpage=problem

General Information

Subject(s): Mathematics
Grade Level(s): 9, 10, 11, 12
Intended Audience: Educators educators
Suggested Technology: Computer for Presenter, Basic Calculators, Overhead Projector, Adobe Acrobat Reader, Microsoft Office
Instructional Time: 1 Hour(s) 25 Minute(s)
Keywords: geometry, problem solving, right triangles, shapes, reasoning, abstract reasoning, quantitative reasoning
Instructional Component Type(s): Lesson Plan,  Worksheet,  Presentation/Slideshow,  Formative Assessment
Instructional Design Framework(s): Predict-Explain-Observe-Explain, Guided Inquiry (Level 3), Learning Cycle (e.g., 5E), Argumentation, Cooperative Learning
Resource Collection: Map.mathshell.org

Aligned Standards

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