Monday, August 25, 2014

Aug. 25, Monday: Ch. 1 Sec. 1

Date
Monday, Aug. 25
Lesson
Ch. 1 Sec. 1
Objective
Variables and Expressions
  • To distinguish between variable and constant mathematical quantities
  • To write algebraic expressions
Class Notes and Resources
Watch this video.

You can represent mathematical phrases and real-world relationships using symbols and operations. This is called an algebraic expression.
For example, the phrase 3 plus a number n can be expressed using symbols and operations as 3 + n.
What is the phrase 5 minus a number d as an algebraic expression?


The phrase 5 minus a number d, rewritten as an algebraic expression, is 5 d.




Exercises
Write an algebraic expression for each word phrase.

1. 5 plus a number d
2. the product of 5 and g
3. 11 fewer than a number f
4. 17 less than h
5. the quotient of 20 and t
6. the sum of 12 and 4

Tonight’s Homework
Textbook pg. 7-8 #2-40 even and #41-55 odd