Lesson Plan: Empty Set
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to define the empty set and use its properties to solve problems.
Objectives
Students will be able to
- define the null (empty) set as a finite set with no elements,
- use notation to express the null set as null or ,
- identify whether a set is a null set.
Prerequisites
Students should already be familiar with
- using the listing method and the description method to express sets,
- the role of elements in sets, including the notations and ,
- the definitions of finite set and infinite set.
Exclusions
Students will not cover
- intersections or unions of sets with the notations and ,
- subsets of sets with the notations and ,
- universal sets,
- the sets , , , and ,
- negative numbers, fractions, or decimals.