Chiara's Math Parent Quiz Post

Ratio Rate Proportion (Link to your Proportion Post)
Peter runs 200 m in 30s while his sister Eva runs 300 m in 36s.

• Who is the faster runner? Explain how you can tell.
• At the same rate, how far will each runner go in 2 minutes?

  Percent (Link to your Percent Scribepost)
A bicycle is on sale for 10% off the origional price of $420. when it does not sell, the store reduces the sale price by another 5%.  What is the final price of the bicycle?

Surface Area
Calculate the Surface Area of the net below.

Fractions (Link to your Fraction Scribepost)
Chad likes to eat Honeycomb for breakfast every day.  He eats 3/4 of a box per week. 

• How much of the box does he eat each day?
• How many boxes of Honeycomb does he eat each year?

Algebra Equation Solving(Link to your Algebra Unproject)

Chiara's Algebra UnProject

I will be showing you how to solve a 2 step multiply and dividing equations, and a distributive equation.

First here are the 3 definitions you should know about algebra.

Coefficient- The number that's multiplied by a variable in an equation.
eg.) 2x + 1= 9 

Constant- The number that doesn't change it's value
eg.) 2x + 1=9 

Variable- A letter or symbol representing a number
eg.) 2x + 1=9

2 step multiplication 

4x + 3=23
First thing you do is isolate the variable

4x + 3 - 3=23 - 3
You cancel the constant by using zero pairs

4x = 20
4       4
Next you divide both side by it's coefficient.

x= 5
So, now you know what x is. Now you verify.

4x + 3=23
Always write the equation.

4(5) + 3=23
Replace the x with 5.

20 + 3=23
Next I did 4(5) which is 20.

23=23
You always do that in the end when you verify.
Here's a link you could go to about 2 step multiply equations.

2 step division

x  + 5=8 
2
First thing you got to do is isolate the variable by using a zero pair

x + 5 -5=8 -5
 2
Next you multiply the variable and do the same thing on the other side.

(2)x  = 3(2)
2
x=6
Now you verify it.

Always remember to write the equation down.

x + 5 = 8
2
Then, you substitute the x with the 6.

6 + 5= 8
2
Divide the coefficient.

3+5=8
And then you verify it by adding it.

8=8
And that's how you verify.
Here's a link to know more about 2 step division.

Distributive property

2 (x -1) = 6
The first thing you do is multiply the constant with the variable by it's coefficient. 

2 (x-1) =6 

x-1
x-1

And then you will have
2x - 2 =6

The next you will do is solve it just like a 2 step multiply 
2x -2 =6
2x -2 +2 =6+2 
2x = 8
2       2
x=4 

2x -2 =6 
2(4) -2=6 
8 -2 =6
6=6 

That's how you would model it.

Here's a link to learn more about Distributive Property.

Chiara's scribe post

Page 339


10. a. I don't think anyone wants 2 and a half of a flower.
      b.


11. a. (40, 2)
      b. 40 represents the amount vested.
      c. For every 20 amount invested, you get one simple interest
      d. The simple interest for $180 is 11

12. a. 0        0
         1        4
         2        8
         3        12
         4        16
         5        20
         10      32
         28
                   124
    b. For every side length (cm), you add 4 perimeter (cm)
    c. Yes, because you can have a 1.5 side length.
    d. Yes, it does have a liner relation because the dots are in a line, and you can make the stairs.

Chiara's Scribe Post

In class we learned how to divide integers. We learned how to say it with words and how to model it.
Here are some examples we did in class:

That is called Multiplicative Inverse 

Chiara's Pay It Forward

Part 1:

What is Pay It Forward?
Pay it forward means giving something good to someone without them paying you back. The person you helped can help other people, and they can help other people too. For example, I could help 3 people and that 3 people could help other 3 people and it would go on and on.

Part 2:

What was your Pay It Forward act of kindness?
I went to the Children's Hospital with some friends and we gave goodies to the children.
Why did you choose this activity?
I chose this activity because I would like to make the children happy. It's boring in the hospital so we gave some stuff for the children so they won't get bored.
When did you go your act of kindness?
I did my act of kindness on November 30, 2012.
Who did you help?
I helped the kids from the Children's hospital.

Part 3:

How did your act of kindness go?

My act of kindness was very fun.

How did you feel? 

I felt happy because I got to help children from the hospital. 

How did the person/people react?

We didn't get to see the children's face but we saw the nurses face. They looked surprised and and happy.

Did you ask the person/people to pay it forward?

No, I didn't get to see them. We weren't allowed to see them. 

Part 4:

Why is the idea of "Pay It Forward" important?

I think it's important because you get to help people and they can help other people too. 

Has your act of kindness made a difference?

I think it made just a little difference by helping children from the hospital.  

                         

Chiara's Fraction Scribe Post

9. Divide
a)