This document provides lesson materials for a math lesson on reading algebraic expressions where letters stand for numbers. It includes examples of expressing algebraic expressions using words, such as "a minus b" for a-b and "4 times f plus u" for 4f + u. Students are asked to complete practice problems identifying parts of expressions using mathematical terms and writing expressions using words. The document concludes with an exit ticket question assessing a student's understanding of reading an expression.

1. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
1
March 31, 2014
Problem Set Lesson 14 Answers

2. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
2
March 31, 2014
MODULE 4 Expressions and Equaons
Topic E: Expressing Operaons in Algebraic Form
Lesson 15: Read Expressions in Which Leers
Stand for Numbers
Student Outcomes
§ Students read expressions in which leers stand for numbers. They assign operaon terms to operaons when reading.
§ Students idenfy parts of an algebraic expression using mathemacal terms for all operaons.

3. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
3
March 31, 2014
Classwork
Opening Exercise
Complete the graphic organizer with mathemacal words that indicate each
operaon. Some words may not indicate only one operaon.

4. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
4
March 31, 2014
Example 1
Write an expression using words.
a. a‐b
b. xy
c. 4f + u
a minus b the difference of a and b
a decreased by b b subtracted from a
u added to the product of 4 and f
4 mes f plus u
the sum of 4 mulplied by f and u
the product of x and y
x mulplied by y
x mes y

5. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
5
March 31, 2014
d. d – b3
e. 5(u‐10) + h
d minus b cubed
the difference of d and the quanty b to the third power .
add h to the product of 5 and the difference of u and 10
5 mes the quanty of u minus 10 added to h

6. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
6
March 31, 2014
f.
Why is 3 divided by d plus f not a correct answer?
find the quoent of 3 and the sum of d and f
3 divided by the quanty d plus f

7. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
7
March 31, 2014
Exercises
Circle all the vocabulary words that could be used to describe the given expression.

8. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
8
March 31, 2014
Write an expression using vocabulary to represent each given expression.
5. 8 – 2g
6. 15 (a + c)
7.
8 minus the product of 2 and g
2 mes g subtracted from 8
8 decreased by g doubled.
15 mes the quanty of a increased by c
the product of 15 and the sum of a and c
15 mulplied by the total of a and c.
the sum of m and n divided by 5
the quoent of the total of m and n
m plus n split into 5 equal groups.

9. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
9
March 31, 2014
8. b3 – 18
9.
10.
b cubed minus 18
b to the third power decreased by 18.
f minus the quoent of d and 2
d split into 2 groups then subtracted from f
d divided by 2 less than f
u divided by x
the quoent of u and x
u divided into x parts

10. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
10
March 31, 2014
Closing
Please take out your exit ticket for Lesson 15, close your
binder, and complete the exit ticket. This will be collected.
Peter says the expression 11 – 3c is three times c
decreased by 11. Is he correct? Why or why not?

11. Module 4 Lesson 15 Read Expressions in Which Letters Stand for Numbers.notebook
11
March 31, 2014