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Math 8 Start.notebook
1
September 10, 2013
Sep 212:51 PM
Math 8
with
Mrs. Doshewnek, Mrs. BodmerHoff,
and Mr. North
Sep 21:09 PM
To achieve success in Math:
Complete assigned homework
Do extra work or ask for more examples if necessary
Study for exams
Talk to your teacher
Math 8 Start.notebook
2
September 10, 2013
Aug 1912:15 PM
Go through Math 8 Outline
Assignment ExpectationsMarking CriteriaMaterials
Teacher ExpectationsRespectAsk for help when confusedPractice math daily (AKA do your homework!)
Aug 1912:17 PM
The following is meant to be a quick review of Math 7.
It is meant to:
help you understand how your Math Education has been and will be developed
allow you to figure out where your strengths and weaknesses may be
allow you to get to know your teacher and for your teacher to get to know you
Math 8 Start.notebook
3
September 10, 2013
Sep 23:15 PM
Rate Your Understanding
1 Poor recollection
2 OK
3 Above average
4 Excellent
Sep 23:26 PM
Unit 1 Patterns & Relations
1. What is a variable? Write a definition and/or give an example of it.
Pull
PullPossible Answer:
Variables represent numbers in equations.
They can be symbols like an ice cream cone, or simply letters like the letter A.
Math 8 Start.notebook
4
September 10, 2013
Aug 1912:23 PM
2. Solve the following Algebraic Expression.
6 r + 3 given that r = 2
PullPull
Substitute 2 for r in the expression.
6 x ( 2 ) + 3
BEDMAS says to Multiply first.
So we are left with
12 + 3
Which equals 15.
Aug 1912:27 PM
Now,
Rate your understanding. 1 4
This will be seen again in Unit 6.
Math 8 Start.notebook
5
September 10, 2013
Sep 23:26 PM
Unit 2 Integers
You dealt with the more difficult adding and subtracting integers. This year, we will be focussing on multiplying and dividing them. It is often much easier.
List the RULES to ADD and SUBTRACT integers. You can draw pictures if it's
easier. Think of examples like (+1) + (1) = ?
Aug 209:32 AM
Rule Example
Two like signs become a positive sign +(+) 3+(+2) = 3 + 2 = 5
−(−) 6−(−3) = 6 + 3 = 9
Two unlike signs become a negative sign +(−) 7+(−2) = 7 − 2 = 5
−(+) 8−(+2) = 8 − 2 = 6
Rules to recall Simply Put:
Math 8 Start.notebook
6
September 10, 2013
Aug 209:22 AM
Rules to recall in detail:
No Sign Means Positive : if a number has No Sign, it usually means that it is a positive number Ex: 13 is really +13
Adding positives is just simple addition 2+3=5
Subtracting positives is just simple subtraction like 6 3 = 3, unless you have
a smaller number first like 5 6 = 1
Aug 209:25 AM
Tougher ones to Remember:
Subtracting a Negative is the same as adding
6 (3) = 6 + 3 = 9
Subtracting a Positive or Adding a Negative uses SUBTRACTION
6 (+3) = 6 3 = 3 (Easier to think about)
5 + (7) = 5 7 = 2
Math 8 Start.notebook
7
September 10, 2013
Aug 1912:31 PM
Unit 2 of Grade 8 Math is Multiplying and Dividing Integers
Now,
Rate your understanding. 1 4
Sep 23:26 PM
Unit 3 Fractions, Decimals & Percents
Write an example of each of these.
Math 8 Start.notebook
8
September 10, 2013
Aug 1912:31 PM
Unit 3 is Operations with Fractions
and Unit 5 is Percent, Ratio, and Rate
Rate your understanding of this topic 1 4
Sep 23:27 PM
Unit 4 Circles and Area
Describe, define, or draw what these concepts mean.
Circumference
Radius
Diameter
Math 8 Start.notebook
9
September 10, 2013
Aug 2010:12 AM
Describe Pi.
3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679 8214808651328230664709384460955058223172535940812848111745028410270193852110555964462294895493038196 4428810975665933446128475648233786783165271201909145648566923460348610454326648213393607260249141273 724587006606315588174881520920962829254091715364367892590360011330530548820466521384146951941511609...
Aug 1912:33 PM
Create your "Typical Summer DAY" circle graph. See the example started below...
Sleep 8 hours
Computer 2 hrs
Math 8 Start.notebook
10
September 10, 2013
Aug 191:19 PM
Rate your understanding of this topic 1 4
You will see it in Grade 8 Unit 4 Measuring Prisms and Cylinders
Sep 23:27 PM
Unit 5 Operations With Fractions
56 + 2
6 = 76
This is adding fractions with LIKE denominators.
Math 8 Start.notebook
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September 10, 2013
Aug 2010:16 AM
But recall that we should not leave the fraction as an ___________ fraction.
That would be improper.
Write as a mixed number. 76
Think wholes and remainders.
Aug 191:23 PM
Now see if you remember how to add using UNLIKE denominators.
34
35
+ = 1520
1220
2720
+ =
Math 8 Start.notebook
12
September 10, 2013
Aug 191:22 PM
The Grade 8 Unit 3 Operations with Fractions is also a lot easier this year, compared to adding and subtracting as you will be Multiplying and Dividing. You will do great as long as you know your multiplication table!!!
(Start practicing now : ) What is 5 x 6? )
How well do you remember Fractions? Rate yourself now.
Sep 23:28 PM
Unit 6 Equations
Write the Equation and Solve by Inspection.
1. a) 6 more than a number is 22.
Pull
Pull
Math 8 Start.notebook
13
September 10, 2013
Aug 191:32 PM
1. b) A number divided by eight is nine.
PullPull
n __
8 = 9
Aug 191:34 PM
Unit 6 Linear Equations and Graphing is where you will see this idea again.
What is your understanding? 1 4 ?
Math 8 Start.notebook
14
September 10, 2013
Sep 23:28 PM
Unit 7 Data Analysis
1. What is the probability to get the number 1 on a proper 6 sided die?
16
Sep 23:38 PM
2. What is the probability of getting SNAKE EYES in ten rolls? Give an educated guess out of ten.
12345678910
CLA
SS R
ESU
LTS
Math 8 Start.notebook
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September 10, 2013
Sep 23:41 PM
Interpret information from a Graph
3. Write as many things as you can about this graph.
Aug 191:35 PM
Unit 7 Data Analysis in Grade 8 Reviews this and a few new concepts.
Rate your understanding.
1 4
Some ideas: It's a bar graph, there is no title, most bushels were demanded at $2.
Math 8 Start.notebook
16
September 10, 2013
Sep 23:36 PM
Unit 8 Geometry
Draw a translation (slide) and a reflection of the shape.
Aug 1912:13 PM
Rate your understanding of Geometry.