Lesson Plan

Add and subtract two matrices of identical dimensions entry-wise.

State the dimension condition for matrix multiplication: $A_{m \times n} \cdot B_{n \times p}$ produces $C_{m \times p}$.

Compute each entry of the product matrix using the row-column dot product.

Multiply a $2 \times 2$ matrix by a $2 \times 2$ matrix; multiply a non-square pair when dimensions allow.

Interpret a matrix product in context (e.g., two-stage calculations, path counting).

HSN.VM.C.8