Curriculum placement
Precalculus. This describes the skill, not a learner estimate.
Data arranged in a matrix
Organize quantities in matrices and interpret rows columns and entries
Problem types
- Read a matrix of data
Builds on
Leads to
- Operations on matrices · Extend the idea
The stock at two stores adds as matrices, and a price list multiplies a quantity matrix to give totals. Operations on data tables are the matrix operations.
- A system written as a matrix equation · Extend the idea
Data stored in a matrix are combined by multiplying matrices, and unknowns are found by solving the matrix system.
Related skills
- Matrices as transformations of the plane · Related idea
Points stored as the columns of a matrix are transformed all at once by multiplying with another matrix.
- Rectangular arrays · Related idea
A table of rows and columns is an array of numbers, and its entries are read by row and column.
- Finding a conditional probability · Shared foundations
Open the interactive map to explore lessons and skill connections.