Page 3 - 091math-wb-w3-(sets)

WORKBOOK

Set Introduction:

Discussion: Where have you heard of sets in real life?

• Music/band set
• Starting a race (ready set)
• Tennis (game-set-match)
• Box set DVD
• The set of natural numbers
• Lego set
• Navigation (set a course)
• Set up
• Set fire to the rain (Adele)

Question: Which of these use the mathematical meaning?

In the subject of set we will learn about representation in listed form, venn-diagram and set-builder
form, types of sets (Empty set, finite and infinite sets, equal sets), subsets and proper subsets, universal set,
operation on sets (Union, intersection, difference and complement of sets) and finally solution of set
problems like below:

Essential Question:

In a survey, 51 American tourists were asked, if they have visited the
following Latin American countries: Argentina, Brazil, and Colombia.
The following facts were gathered.

35 tourists have visited Argentina.

34 tourists have visited Brazil.
19 tourists have visited Colombia.

11 tourists have visited Argentina and Brazil, but not Columbia.
5 tourists have visited Argntina and Colombia, but not Brazil.

12 tourists have visited Argentina, Brazil and Colombia. Everyone who visited Colombia also visited at least
one of the following two countries: Argentina, and Brazil.

How many American tourists visited Brazil, but not Argentina or Colombia?

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