Matrix operations (add, subtract, scalar multiply, multiply)
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
Teacher tools for this standard
Lesson Plan · Guided Notes · Exit Ticket · Re-teach · Homework
- Lesson Plan →Objectives, pacing and practice, built from this lesson's brief.
- Guided Notes →One page your students fill in and keep.
- Exit Ticket →Three items at the end of class. No student accounts.
- Re-teach →After an exit ticket: who missed what, and what to do tomorrow.
- Homework →Assign practice; it grades itself.
"N 406. Add two matrices that have whole number entries"
"N 505. Add and subtract matrices that have integer entries"
"N 607. Use relations involving addition, subtraction, and scalar multiplication of vectors and of matrices"
"N 705. Multiply matrices"
"N 706. Apply properties of matrices and properties of matrices as a number system"
"Note: A matrix as a representation of data is treated here as a basic table."
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"N 406. Add two matrices that have whole number entries"
"N 505. Add and subtract matrices that have integer entries"
"N 607. Use relations involving addition, subtraction, and scalar multiplication of vectors and of matrices"
"N 705. Multiply matrices"
"N 706. Apply properties of matrices and properties of matrices as a number system"
"Note: A matrix as a representation of data is treated here as a basic table."
What you'll learn
- Add, subtract, scalar-multiply and multiply matrices, first deciding from their dimensions whether the operation is defined
- State a matrix's dimensions as `rows x columns` and identify the entry at a given row and column
- Add and subtract matrices of the same dimensions and multiply a matrix by a scalar, stating that a sum or difference of differently sized matrices is undefined
- Determine from dimensions alone whether `AB` is defined, and state the product's dimensions
- Compute `AB` by the row-by-column rule for `2x2` by `2x2` and `2x2` by `2x1`
- Show with a specific pair that `AB ≠ BA`, and state the identity matrix's effect under multiplication
Slides
Step through the lesson, or watch it as a narrated video
Slides
In development
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