Brandon's Algebra Post

Algebra: Writing mathematical phrases using letters to show

numbe

r.
Variable: A letter that represents a number in a equation or expression.
Constant: The integer in an algebraic equation or expression.
Expression: A pattern with many possible answer

s.
Equation

: With only one possible answer.

Steps:

1. Isolate the variable

2. Cancel using a zero pair

3. Balance

4. Verify

Using Algebra Tiles -

Steps to solve a "two step equation" :

1. Isolate the variable

2. Cancel the constant

3. Balance

4. Simplify the variable

5. Verify

Solving a Two step equation with algebra tiles:

X=2

Brandon's Term 2 Reflection

Brandon's Great Big Book of Integers

Chapter 1

Grade 7 Integer Review

Questions for class

-8 - (-4) = -4

-10 + 8 = -2

8 - 7 + 2 = 3

17 - (-3) = 14

- 5 - (-7) = 2

- 2 - 5 = -7

3 - 7 = -4

5 + 5 = + 10


-5 + 6 = - 1

Chapter 2

Multiplying Integers
(+4)x(+2) = 8

Make 4 groups of positive 2


Make 4 groups of negative 2

(+4)x(-2) = -8

(-4)x(+2) = -8
Remove 4 groups from positive 2


(-4)x(-2)= 8

Remove 4 groups of negative 2

Chapter 2

Dividing Integers

Even = When you have a even number of negative factors your product is positive.

Odd = When you have a odd number of negative factors your product is negative.

Partitive Division - when you use groups to find your quotient.

6 ÷ 2 = 3


(-6) ÷ (-2) = 3

Quotative Division - Sharing numbers in groups

(-6) ÷ 2 = - 3

Chapter 4

Order of Operations

(+6) x (-2) + (-6) ÷ (+2)= ?

1) Always do multiplication and division first
2)Put square brackets around (+6) x (-2) ex. [(+6) x (-2)]
3)Put square brackets around (-6) ÷ (+2) ex. [(-6) ÷ (+2)]
4) Solve (-12)+(-3) = + 15

Brandon's Text Book Volume Scribe

From the textbook, I had to do pages 260-261 numbers 11,16,17.
Here's what I did.

1)Copy and complete the following table.
the 700 is supposed to be 1200, sorry for the mistake.


a) So this is what I did. I needed to find the height for the first one so I divided 70 by 7 and I got 10
then I divided 10 by 2 and got 5.

b)For the second one I did the same thing 1080/12 = 90, 90/10 = 9 12x9x10 = 1080

c) 1200/5 = 240, 240/ 15 = 16


16)Cindy’s aquarium stands 75 cm tall and
has a base that measures 1.2 m × 80 cm.
At one point during the initial filling, the
aquarium has a 12-cm depth of water in
it. Cindy needs to fill it to 15 cm from the
top before she adds the fish. Draw a
diagram and label the dimensions of the
aquarium. Determine how much more
water Cindy must add before she puts in
the fish.

v= l.w.h
v=75cm.80cm.12cm
v=72,000 cm3



17) contractor is excavating a rectangular
hole 10 m × 12 m × 3 m to pour the
foundation for a house. A dump truck
with a capacity of 9 m3 is used to haul
away the excavated soil. How many trips
does the truck need to make?

v= l.w.h
v=10mx12mx3m
v=360
360/9= 40

The truck made 40 trips

Final Percent Post

Percents
This chapter, we learned about percent. Percent means out of 100. Percents can be converted into fractions and/or decimals.
Example: 75% - 75/100 or 0.75

Representing Percents
Percents can be represented on a hundred grid.
Example: 55%

Fractions, Decimals and Percents
Percents can be represented as a fraction or a decimal. Example: 50% ; 50/100 ; 0.5

Percent of a number
You can find percent of numbers by using mental math strategies. They are halving, doubling, a dividing by 10. Example: 50% of 1000 is 500

Combining Percents
Combine percents by adding to solve the problems. Example: 5% + 7% = 12%

Here is my percent video.

Brandon's Pay It Forward

Part 1

The movie Pay It Forward was about a boy named Trevor who had an assignment to try to change the world. So Trevor took a bum home and he fed him. Trevor hid the bum in the garage. It was pretty hard for Trevor because his dad left him and his mother is an alcoholic.

Part 2

What was your pay it forward act of kindness?

My act of kindness was I went to a community Center and helped kids

Why did you chose these activity?

I chose this activity because it was a great idea.

Who did you help?

I helped the community.

What did you do?

I handed out hot dogs, candy canes and helped Santa Clause.

When did you do your act of kindness?

I did it on December 18,2010 Saturday

Part 3

How did you act of kindness go?

I think that it went fine

What happened?

I was giving hot dogs and candy canes to little kids.

How did you feel?

I felt good because I did something good for another person.

How did the person react?

The people there we're surprised that kids we're volunteering.

Did you ask the person to Pay it forward?

No , I haven't

Part 4

Why is the idea of pay it forward important?

I think its important because you wanna be nice and that's a good way to show it. You are doing this so you can make other peoples life easier.

Has your act of kindness make a difference?

I think it have made a difference because I helped a lot of people and asked nothing in return.

Brandon's homework answers

The average male is 15% body fat, If Jack has a mass of 79 kgs, How much of it is fat?






Jack approximately has 11.85 kilograms of fat.



Last year the bombers averaged 25200 fans per game. This years attendance dropped 4.9%. What was this years average attendance?





This years average attendance is 1234.8 .

Sesame Street final post

Part 1

Two Term Ratio: compares 2 quantities measured in the same units.
ex.
or 1:2 or 1/2 or 1 to 2

Three Term Ratio: compares three quantities measured in the same units.
ex.
or 1:2:3 or 1 to 2 to 3

Part to Part Ratio: compares different parts of a group to each other.
ex. 1:1 or 1 to 1

Part to Whole Ratio: compares one part of a group to the whole group.
ex.
1/2 or 50% or 0.5 - A part to whole ratio can be written as a fraction, a decimal, and a percent.

ates: compares two quantities measured in different units.
ex.
$2.00 per 10g or $2.00/10g- rates can be used when buying food.

Unit Rate- a rate in which the second term is one.
ex.
20km an hour or 20km/hr

Unit Price- a unit rate used when shopping.
ex.
per 100g or per 100ml

Proportion- a relationship that says that two ratios or two rates are equal.
ex.

Brandon's Math Profile

Hello, my name is Brandon. I am a math student from sargent park. If anyone asked me if I liked math, I would say yes it's a subject I normally like to take. I usually have some trouble solving some problems.. But I still solve them. I like math because it warms my brain up so I can think of more ideas. But if I think to much, my head starts to hurt a lot!

In grade 7, I really liked the unit probabilities because you just estimate random numbers. I kinda struggled in adding fractions.. It was kind of easy in the beginning but once we got into the unit deeper I had some trouble doing it.. I would study more and complete my all my math homework .. especially the ones that I have trouble in.

For grade 8, I would like to be successful in every unit we learn. I also want to pass all my test and exams in the end of the year. I want to learn a lot of things in math like everything! It may seem tough.. But I want to accomplish on learning all of the units in math.


I only posted one post in grade 7, and it is my favourite one of all! Because I made everything from scratch... besides the diamond graph.. Making my post was fun.. It felt like it wasn't even math anymore! Blogging helped me become a better student.. Because reading everybody's post can make you learn a thing or two.