Algebra 1 3-5 Guided Practice: Working With Sets
By Matt Richardson
Last updated about 2 years ago
21 Questions
10
1.
Solve It! Most numbers on a telephone keypad correspond to a set of letters. Suppose you're friend is using the keypad to encrypt a secret message. He sends you the string of characters 4 6 6 3 in that order. What is one word he might be trying to send?
A.REI.3
10
2.
Take Note: Define set as it pertains to this lesson.
10
3.
Take Note: Define subset as it pertains to this lesson.
5
4.
Take Note: Provide an example of a set containing 5 elements that is written in roster form.
5
5.
Take Note: Provide an example of a set that is written using set-builder notation.
10
6.
Problem 1 Got It?
A.REI.3
10
7.
Problem 2 Got It?
A.REI.3
5
8.
Take Note: Provide an example of two sets written in roster form. The second set should be a subset of the first.
5
9.
Take Note: Every set is a subset of itself.
10
10.
Take Note: Define the empty set.
5
11.
Take Note: Write the empty set in roster form.
10
12.
Take Note: Mathtype pro-tip!
In many equation editors, the code \subseteq will generate the subset symbol ⊆. You can try it out here.
Enter the subset symbol.
10
13.
Problem 3 Got It? What are the subsets of the set P = {a, b}?
Select all that apply.
10
14.
Problem 3 Got It? What are the subsets of the set S = {a, b, c}?
Select all that apply.
5
15.
Problem 3 Got It? Reasoning: Let A = {x | x < -3} and B = {x | x ≤ 0}. Is A a subset of B?
A.REI.3
10
16.
Problem 3 Got It? Reasoning: Explain your reasoning on the previous item.
You may use the canvas to help illustrate your written response.
A.REI.3
10
17.
Take Note: Define universal set (aka universe).
10
18.
Take Note: Define complement of a set.
10
19.
Take Note: Let the universal set U and a set A be defined as below.
U = {1,2,3,4,5}
A = {1,3,5}
Write A' in roster form.
10
20.
Problem 4 Got It?
A.REI.3
10
21.
Take Note: Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?