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This lesson unit is intended to help you assess how well students are able to use geometric properties to solve problems. In particular, it will support you in identifying and helping students who have the following difficulties: Solving problems relating to using the measures of the interior angles of polygons; and solving problems relating to using the measures of the exterior angles of polygons.
Lower Primary, Upper Primary, Middle School, High School
Kindergarten, Grade 1, Grade 2, Grade 3, Grade 4, Grade 5, Grade 6, Grade 7, Grade 8, Grade 9, Grade 10, Grade 11, Grade 12
Material Type:
Assessment, Lesson Plan
Shell Center for Mathematical Education
Provider Set:
Mathematics Assessment Project (MAP)
Date Added:
Creative Commons Attribution Non-Commercial No Derivatives
Media Format:
Downloadable docs, Text/HTML


Lehua HIDOE on Aug 24, 04:18pm

This is a lesson and assessment task that has many teacher resources. It has ppt, student worksheets, assessment, and lesson plan. It strongly addresses CCSS 7.G.5. Students have to try different ways to find the unknown angle.

Anonymous on Jul 17, 07:00pm

Rolling Cups unit presents a non-routine mathematical inquiry situation requiring students to develop experimental and analytical models of a physical situation and to generate and analyze data through the systematic control of variables.

Resources include common misconceptions associated with the target standards along with suggested instructional strategies to ensure students build conceptual understanding.

F-BF.1 – Rating: 3
G-SRT.5 – Rating: 2



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