Chapter 8: Variables and Equations Math Grade 7.
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Transcript of Chapter 8: Variables and Equations Math Grade 7.
S
Chapter 8: Variables and
EquationsMath Grade 7
ThursdayJanuary 23rd
Mental math (2min)
Review (vocabulary)
Algebraic expression: Set of letters and
numbers which are interconnected by sign
Variable(s): Letters that replace
numbers Term(s):
Each term is separated by the plus sign (+) or minus (-).
Like terms: Terms whose variables
are the same
Key WordsIn this equation: 3x2 + 2x + 3 + x, what are:
Constant(s): Single number
Coefficient(s): Number stuck beside a
letter Exponent(s):
The number of times a number is to be multiplied by itself
Variables and Equations
Correct homework p. 233 #26-49 p.234 #10-27 p. 235 #1-21
8.5 Using Equations to solve Problems
Homework: p.239 #1-39 (only odd #)
Friday: Problem SolvingJanuary 24th
Textbook p. 247 #1, 4, 8 et 11
Extension: Our school went whale watching. The cost was $8 per student and $10 per adult. The total cost for the whale-watching trip was $518 for 63 tickets. How many students went whale watching? How many adults?
Tuesday, 4th February
Variables and Equations
Correct homework 8.5 Using Equations to solve Problems
2x + 3y – ( 4xy2 - 5y) +10 + 4 – (7x2y + y2x) Reduce the equation
Find the perimeter of both figures:
Practice/Homework: p.239 #1-39 (only odd #)
7s -2
13s +3
10t +1
4t -5
Thursday, February 6th
Using Equations to solve Problems
Correction Homework : p.239 #1-39 (only odd #)
p. 240-241 (together)
Homework: Review p.244-p.245 (odd number only)
Algebra Exam Tuesday
Review/Problem Solving
Questions homework??? Review??? -(3xy + 3 – 5yx) + 6y – 4xy3 – 3y3 +
7x3y - 1
p.247 #2, #6
Exam Tuesday