Albert's Term 2 Reflection

What I learned in term 2 is about volume, surface area, and percent. Volume is a measurement of 3 dimensional space and tell how large it is, we got to learn to find the cubic squares in shapes. The surface area is the surface of the 2 dimensional space, the shapes we learned to find the surface area is a triangular prism, rectangular prism, and cylinder. What we learned about percents is about how to convert a number into a percent then into a fraction and decimal.
What I find easy to do is doing the test because I learned about it before. What I struggle in is remembering the formula for finding the surface area of a triangle because I used the wrong formula. In the next term I will try to work harder and study for a test.

Albert's Great Big Book of Integers

Chapter 1:
Grade 7 Integer Review

Integers could be express using a number line or integer chips.







In integers, when adding both positive and negative with the same number they will cancel each other out making the answer a zero.

eg. (+5) + (-5) or (-5) + 5






The brackets for the integers are like training wheels for making equations more understandable
but mostly we need to use standard form.

eg. (+6) + (-6) In standard form 6 -6

Chapter 2:
Multiplying Integers

The Sign Rule:

When you have an even number of negative factors, the product will be POSITIVE.
eg. (-4) x (-4) = +16

When you have an odd number of positive factors, the product will be NEGATIVE.
eg. (+5) x (-4) = -20

Ways of showing how to multiply integers:

Positive x Positive = Positive: (+2) x (+3) = +6 , (2) x (3) = 6 , (2) (3) = 6
or
2(3) = 6
or
2 groups of (+3)

Negative x Positive = Negative: (-2) x (+3), remove 2 groups of (+3)

Negative x Negative = Positive: (-2) x (-3), remove 2 groups of (-3)


Chapter 3:
Dividing Integers

The way of reading the dividing integers is:
- How many groups of __ are in __?
- How many __'s go into __?

Partitive Division - The making of groups or parts.

Quotative Division - Sharing with groups.

The quotient of the two integers with the same sign is Positive.
The quotient of the two integers with the same sign is Negative.

Chapter 4:
Order of Operations with Integers

B.E.D.M.A.S. is used to do the order of operations for integers which stands for:

Brackets
Exponents
Division
Multiplication
Addition
Subtraction

eg.
(+5) x (-3) + (-6) ÷ (+3) =

[(+5) x (-3)] + [(-6) ÷ (+3)] =

(-15) + (-2) = -17

Albert's Sesame Street Video Post

Ratio


Two Term Ratio
- compares two quantities measured in the same units.
ex. X:Z, 1:2, 2 to 1


Three Term Ratio
- compares three quantities measured in the same unit.
ex. X:Z:Y, 1:2:3, 2 to 1 to 3



Rates

Rates
- compares two quantities measured in different units.
ex.(Shopping) $ 0.98/1 gas

Unit Rate
- a rate in which the second term is one.
ex. 20Km/h

Unit Price
- a unit rate used when shopping.
ex. $9.00/grams

Proportional Reasoning

Proportion
- a relationship that says that two ratios or two rates are equal.
ex. 3Km/2h = 12Km/8h

Albert's Math Profile

Hi, my name is Albert and I'm a grade 8 student. If you ask me if I like math then I would say yes because you learn fun things like fractions, decimals and other things but it could be difficult in sometimes.

Back in grade 7 I like the part with the fractions. I have fun learning new things like adding, subtracting, turning it into percent and more. I also remember learning about using b.e.d.m.a.s (which stands for brackets, exponents, division, multiplication, adding and subtracting) which is useful for doing some equations.



This year for grade 8 I will be going to finish all my homework and study for test so I could get to grade 9. In grade 8 I will be going to notice that it will be going to be more difficult so i should work hard.



Last year for blog I didn't exactly did a very good job and so this year I will try to blog more often so it could help other people that are away and it could even help me. This year I will be looking forward on doing some fun and interesting activities that could help me get to grade 9.