Writing Mathematical Expressions Part 1

Open Ended

What is something you used to be scared of but aren't anymore?

Writing Expressions

MA.5.AR.2.1 Translate written real-world and mathematical descriptions into numerical expressions and numerical expressions into written mathematical descriptions.

Writing Expressions

I can translate combined addition and multiplication expressions into verbal or written descriptions.

Multiple Choice

Recall:

Use Order of Operations to simplify the following

24x(4-2)÷6

• 8
• 2
• 6
• 5

Writing Expressions Part 1

• Verbal statements can be translated to algebraic expressions AND vice versa.

• It is like deciphering a secret message or translating from one language to another.

Expression

• An expression is a mathematical phrase that contains numbers, variables, and operations.

• It does NOT contain an equal sign.

• A verbal or written description contains words or verbage.

Math Signal Words for Addition

Math Signal Words for Multiplication

Open Ended

I Do: Write an expression:

8 + 2n

Open Ended

We Do:

Write an expression:

7x + 19

Open Ended

You Do:

Write an expression:

5x + 7

Group Discussion

​In BBB, summarize today's lesson.

Match

Exit Ticket:

Match the following

• y increased by a factor of 4

• 6 plus y increased by a factor of 4

• 6 times y increased by a factor of 4

• 4 plus y increased by a factor of 6

• y increased by a factor of 6

4y

6 + 4y

(6)(4y)

4 + 6y

6y

• 4y

• 6 + 4y

• (6)(4y)

• 4 + 6y

• 6y