Operation On Matrices
Chapter Name : Matrices |
Sub Topic Code : 104_12_03_04_03 |
Topic Name : Operation On Matrices |
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Sub Topic Name : Properties Of Matrix Addition |
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Introduction
There are four properties of matrix addition. They are commutative law, associative law, existence of additive identity and the existence of additive inverse.
Pre-Requisites:
Addition of matrices, order of matrix
Activity:
Understand that knowing the properties of matrix addition assists in calculating the total for a set of matrices. Example commutative and associative law show that the order of adding the matrices make no difference.
Real Life Question:
Do the properties of addition in matrices make it easier to calculate the total of a set of matrices?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Order of matrix | The number of rows and columns in the matrix ; m (rows) x n (columns). |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Data records | Observe how the properties of matrix addition are used. |
Real life uses :
In adding up variables such as prices and sales.
Practical examples around us
| Examples | Explainations |
|---|---|
| Use in totaling | Handy to find total of groups with sub-divisions. |
What you learn in Theory:
The properties of matrix addition.
What you learn in Practice:
To be able to use the properties for adding sets of matrices conveniently.