The second lesson on finding inverse matrices asks class members to look for a pattern in the inverse matrix and test it to see if it works for all matrices. The teacher leads a discussion to refine the process in finding inverses, then individuals use the refined process to determine when a matrix does not have an inverse. 

Concepts

inverse matrices, matrices, matrix operations, multiplication matrices, inverse, transformations, determinants, area

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Additional Tags

math

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Instructional Ideas

• Conduct a discussion about what types of functions did not have an inverse and make the connection to matrices that do not have inverses

Classroom Considerations

• The class should know how to determine the inverse of a matrix with determinant of one
• Pupils need to know how to fluently calculate the determinant of a 2 X 2 matrix
• 30th segment in a series of 32

Pros

• The teacher resource contains expected responses to teacher questions
• The scaffolding includes suggestions on possible grouping strategies

Cons

• None

Common Core

HSN-VM.C.10 HSN-VM.C.12 MP3