Algebra 1 1-1 Guided Practice: Variables and Expressions - Matt Richardson | Library

Video Check: Select all that apply with regards to the video embedded directly above this item.

🕵️ I carefully watched the entire video.

📵 I removed distractions from my field of view while watching the entire video.

🎧 I used headphones (or earbuds) to listen to the entire video as I watched it.

✋ I sought clarification, as needed, to understand each concept in the video.

🎓 I understand each concept in the video and feel ready to move on.

🎯 I feel prepared to complete challenging problems related to the video.

❌ None of these statements apply.

Solve It! Consider the population of Florida, the area of Colorado, and the flight time from Philadelphia to San Fransisco. 

Which of these has a value that varies? Select the most appropriate option.

The population of Florida

The area of Colorado

The flight time from Philadelphia to San Fransisco

Video Check: Select all that apply with regards to the video embedded directly above this item.

🕵️ I carefully watched the entire video.

📵 I removed distractions from my field of view while watching the entire video.

🎧 I used headphones (or earbuds) to listen to the entire video as I watched it.

✋ I sought clarification, as needed, to understand each concept in the video.

🎓 I understand each concept in the video and feel ready to move on.

🎯 I feel prepared to complete challenging problems related to the video.

❌ None of these statements apply.

Take Note: What is a mathematical quantity?

Take Note: What is a variable?

Take Note: What is an algebraic expression?

Take Note: Provide an example of an algebraic expression.

Take Note: What is a numerical expression?

Take Note: Provide an example of a numerical expression.

10.

Problem 1 Got it? What is an algebraic expression for 18 more than a number n?

18 - n

18n

n - 18

n + 18

A.SSE.1.a

11.

Video Check: Select all that apply with regards to the video embedded directly above this item.

🕵️ I carefully watched the entire video.

📵 I removed distractions from my field of view while watching the entire video.

🎧 I used headphones (or earbuds) to listen to the entire video as I watched it.

✋ I sought clarification, as needed, to understand each concept in the video.

🎓 I understand each concept in the video and feel ready to move on.

🎯 I feel prepared to complete challenging problems related to the video.

❌ None of these statements apply.

12.

Take Note: Match each mathematical operation on the left with the name for its result on the right.

		Sum
		Difference
		Product
		Quotient

13.

Problem 2 Got it? What is an algebraic expression for 6 times a number n?

Enter only the expression, in simplest form.

A.SSE.1.a

14.

Problem 2 Got it? What is an algebraic expression for the quotient of 18 and a number n?

Enter only the expression, in simplest form.

A.SSE.1.a

15.

Problem 2 Got it? Reasoning: Do the phrases 6 less a number y and 6 less than a number y mean the same thing? Explain.

Yes, they both mean the same thing. They can also both be represented by the expression y - 6.

No, they do not both mean the same thing. 6 less a number y can be represented by the expression 6 - y. 6 less than a number y can be represented by the expression y - 6.

A.SSE.1.a

16.

Video Check: Select all that apply with regards to the video embedded directly above this item.

🕵️ I carefully watched the entire video.

📵 I removed distractions from my field of view while watching the entire video.

🎧 I used headphones (or earbuds) to listen to the entire video as I watched it.

✋ I sought clarification, as needed, to understand each concept in the video.

🎓 I understand each concept in the video and feel ready to move on.

🎯 I feel prepared to complete challenging problems related to the video.

❌ None of these statements apply.

17.

Problem 3 Got it? What is an algebraic expression for 8 less than the product of a number x and 4?

4x - 8

8 - 4x

8(x + 4)

\frac{x}{4} + 8

A.SSE.1.a

18.

Problem 3 Got it? What is an algebraic expression for twice the sum of  a number x and 8?

x + 2(8)

x(x + 8)

2(x + 8)

2x + 8

A.SSE.1.a

19.

Problem 3 Got it? What is an algebraic expression for the quotient of 5 and the sum of 12 and a number x?

\frac{5}{x}+12

\frac{12}{5+x}

\frac{5}{12}+12

\frac{5}{12+x}

A.SSE.1.a

20.

Video Check: Select all that apply with regards to the video embedded directly above this item.

🕵️ I carefully watched the entire video.

📵 I removed distractions from my field of view while watching the entire video.

🎧 I used headphones (or earbuds) to listen to the entire video as I watched it.

✋ I sought clarification, as needed, to understand each concept in the video.

🎓 I understand each concept in the video and feel ready to move on.

🎯 I feel prepared to complete challenging problems related to the video.

❌ None of these statements apply.

21.

Problem 4 Got it? What word phrase can you use to represent the algebraic expression x + 8?

the product of a number x and 8

the number x less 8

the sum of a number x and 8

the number x times 8

A.SSE.1.a

22.

Problem 4 Got it? What word phrase can you use to represent the algebraic expression 10x + 9?

ten times the sum of a number x and 9

the sum of a number x and 9 times 10

a number x more than the product of 10 and 9

the sum of ten times a number x and 9

A.SSE.1.a

23.

Problem 4 Got it? What word phrase can you use to represent the algebraic expression \frac{n}{3}?

the product of a number n and 3

the quotient of a number n and 3

the sum of a number n and 3

the difference of a number n and 3

A.SSE.1.a

24.

Problem 4 Got it? What word phrase can you use to represent the algebraic expression 5x - 1?

the sum of 5 and the product of 1 and a number x

five more than 1 times a number x

five times a number x plus 1

five times a number x less 1

A.SSE.1.a

25.

Video Check: Select all that apply with regards to the video embedded directly above this item.

🕵️ I carefully watched the entire video.

📵 I removed distractions from my field of view while watching the entire video.

🎧 I used headphones (or earbuds) to listen to the entire video as I watched it.

✋ I sought clarification, as needed, to understand each concept in the video.

🎓 I understand each concept in the video and feel ready to move on.

🎯 I feel prepared to complete challenging problems related to the video.

❌ None of these statements apply.

26.

Problem 5 Got it? Suppose you draw a segment from any one vertex of a regular polygon to the other vertices. A sample for a regular hexagon is shown. 

Use the table to find a pattern.

A

B

C

D

A.SSE.1.a

27.

🧠 Retrieval Practice:
Summarize the mathematical content of this lesson. What topics, ideas, and vocabulary were introduced?