Matrices and matrix arithmetic
10 hours
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Use matrices for storing and displaying information that can be presented in rows and columns, e.g. tables, databases, links in social or road networks.
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Recognise different types of matrices, including row matrix, column matrix, square matrix, zero matrix and identity matrix, and determine the size of the matrix.
1 interactive
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Perform matrix addition, subtraction and multiplication by a scalar.
1 interactive
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Perform matrix multiplication manually up to 3 × 3 matrices but not limited to square matrices.
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Determine the power of a matrix using technology with matrix arithmetic capabilities when appropriate.
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Use matrices, including matrix products and powers of matrices, to model and solve problems, e.g. costing or pricing problems, squaring a matrix to determine the number of ways pairs of people in a communication network can communicate with each other via a third person.