Welcome to Algebra

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# Welcome to Algebra - PowerPoint PPT Presentation

Welcome to Algebra. 9/6/11. Writing Algebraic Expressions From Words. Take a “2.2 Substituting Numbers for Variables” from the back table Study Example 1 and Example 2 (2 mins) Answer 1 – 24 on a separate sheet (13 mins). Announcements. Today is Tuesday: Homework 1.2 – due Tomorrow

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## Welcome to Algebra

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### Welcome to Algebra

9/6/11

Writing Algebraic Expressions From Words

Take a “2.2 Substituting Numbers for Variables” from the back table

Study Example 1 and Example 2 (2 mins)

Answer 1 – 24 on a separate sheet (13 mins)

Announcements
• Today is Tuesday:
• Homework 1.2 – due Tomorrow
• Quiz 1.2 – Thursday
Agenda
• 7:50 - Warm Up
• 8:10 – Announcements
• 8:15 – Check Warm Up
• 8:20 – Writing Algebraic Expressions From Words
• Notes (2.3) – 5 mins
• Intro – 5 min
• Guided Practice Mult Choice Game – 15 mins
• Begin Homework – 10 mins
Cheat Sheet!

together

subtract

minus, less

decreased by

combined

increased by

Left

Remains

total of

less than, fewer than

difference

in all

more than

plus

sum

loss

Take away

divide

product of

per

area

out of

quotient

groups of

times

average

per

volume

split

percent

multiply

Check For Understanding

A

• Each person on the team receives a piece of paper that they quickly make into 4cards, labeled A, B, C, and D
• I am going to reveal a series of multiple choice questions

B

• When you have your answer, place it face down on the front, right-hand corner of your desk

C

D

• When time is called you must hold up the card that you chose
• Then, we will discuss the choices
Multi-Choice Cards

Translate to an algebraic expression:

A)

11 more than y

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

5 less than n

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

a number b divided by 8

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

the product of 3.3 and a number x

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

A number x fewer than 7

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

A number u cubed

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

One fourth of a number p

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

6 groups of a number d

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

a number w tripled plus t quadrupled

B)

C)

D)

Multi-Choice Cards

Translate to an algebraic expression:

A)

the product of 2 times a and 5 times b

B)

C)

D)

Multi-Choice Cards

Write an algebraic equation to model the relationship:

A)

The cost of beverages in a vending machine is shown:

B)

C)

c = Cost

D)

b = Beverage

Multi-Choice Cards

Write an algebraic equation to model the relationship:

A)

Leonardo gets paid to mow his neighbor’s lawn. He begins with \$50, and for every week that he mows the lawn, he earns \$20. Write a rule as an algebraic equation to model the relationship.

B)

C)

T = Total Money

D)

W = # of weeks mowed