Matrices 1

MUNCHABLE MATRICES

Munchable Matrices is a graphic story on the meaning of matrix multiplication. Matrices store and manipulate data and are used in machine learning processes of neural networks.

A PDF download of this story will be available soon.

See also:


COVER

See Gadanidis, Li, & Tan (2024)


PAGE 1: Frequency tables


PAGE 2: Matrices


PAGE 3: Matrix multiplication


PAGE 4


DO THE MATH

  • Complete the matrix operations shown on the right.
    • What is the meaning of the first operation?
    • What is the meaning of the second operation?
  • Study the matrix operations below:
    • Which operations are possible?
    • Why?
    • What would be the dimensions of the resulting matrices?
  • Describe a general rule for each of the following:
    • Adding matrices:
      • If 2 matrices can be added, what must be true about their dimensions?
      • What would be the dimensions of the resulting matrix?
    • Multiplying matrices:
      • If 2 matrices can be multiplied, what must be true about their dimensions?
      • What would be the dimensions of the resulting matrix?

PAGE 5: Matrices & neural networks


REFLECT

What did you learn?

  • What did you learn about matrix addition and multiplication?
  • What was most interesting to you?
  • What surprised you?
  • What else do you want to know?