Complete the Practice Exam and check your answers. If you have any questions, please ask your instructor for assistance.

Unit 1: Set Theory

Complete all of the activities outlined below before writing the unit exam.
This unit will require about 10-15% of the time you spend on Math 30-2.

Introduction

The following prerequisite concepts were covered in earlier math courses. These concepts may appear throughout the unit. Be sure to fully understand each before beginning the unit.

prime number = numbers that have only two distinct factors. For example, 2, 3, 5, 7, 11, 13...

composite number = numbers that have more than two distinct factors. For example, 4 is composite because 1, 2 and 4 are all factors of 4.

set of natural numbers = 1, 2, 3, 4, ...

set of whole numbers = 0, 1, 2, 3, ...

set of integer numbers = ...-3, -2, -1, 0, 1, 2, 3, ...

set of rational numbers = all numbers that can be written as a fraction. For example, -5, 0.2, 1.444...

set of irrational numbers = all numbers that cannot be written as a fraction (non-terminating, non-repeating decimals). For example, square root of 2.

set of real numbers = all rational and irrational numbers

Read through Getting Started on p.4 to begin thinking about grouping information into sets and how the sets can be related.
Watch 'Introduction to Venn Diagrams' for a basic look at what Venn diagrams are: http://www.youtube.com/watch?v=mpVpZMuAt9c

Work through section 1.1. Pay special attention to the defined terms highlighted in green.
Complete the 'Check Your Understanding' and 'Practising' questions starting on page 14. Check your work in the solution manual.

Watch the video 'Venn Diagrams - An Introduction' : http://www.youtube.com/watch?v=YAjxRUGS0Gc
Work through section 1.2.
Complete the 'Further Your Understanding' questions starting on page 20. Check your work in the solution manual.

Watch the video 'Sets: Union and Intersection' : http://www.youtube.com/watch?NR=1&feature=fvwp&v=En8fI2ixepo Work through section 1.3.
Complete the 'Check Your Understanding' and 'Practising' questions starting on page 32. Check your work in the solution manual.

Read the 'Mid-Chapter Review' on p.36.
Complete the practise questions on p.38.

Watch the video 'Solving Problems with Venn Diagrams' :
http://www.youtube.com/watch?v=MassxXy8iko Work through section 1.4. Complete the 'Check Your Understanding' and 'Practising' questions starting on page 51. Check your work in the solution manual.
Complete 'Applying Problem-Solving Strategies' on p.55.