873 Math Blog

The following video is about 1,000,000 Acts OF Green around the world, and a few stuff we can do. The video also has the effects on what can happen to us.
Put the video into HD .

Adding Fractions
Tips :

• Common denominator.
  
• Same Sized parts.
  
• One way to find the common denominator is to multiply the denominator.

Steps :

1. Find the Common denominator.
2. Add the numerators.
   

Example :





















Adding Mixed Fractions
Tips :

• Add the whole #'s.
• Add the fraction's.
  

Steps :
Same as adding fractions.

Example :













Subtracting Fractions
Tips :

• Almost the same as Adding Fractions .
  

Steps :

1. have the same denominator.
2. subtract the numerators.

Example :





















Multiplying Fractions
Tips :

• When we multiply the product is greater or equal than the fraction.
  

Steps :

1. multiply the numerators
2. multiply the denominators.

Example :
















Multiplying Mixed Fractions
Tips :

• To multiply mixed numbers convert to improper and fractions and multiply.

Steps :

1. change mixed fractions to an improper
2. multiply the numerators and denominators.

Example :

















Dividing Fractions
Tips :

• " How many groups of ___ are in ___ ? "
• Paint Can, Room
  

Steps :

1. ratio table/ the other table

Example :






Dividing Mixed Fractions
Tips :

• Sorry no tips .
  

Steps :

1. reciprocal.
2. inverse of the denominator.

Example :

























Word Problems

Adding Mixed Numbers
Questions :
1 3/4 + 1 1/8
2 4/5 + 1 1/2

1) 1 3/4 + 1 1/8 - First step is to add the whole numbers , so 1 + 1 = 2. - Second step is to find the common denominator, Then we multiply 4 x 8 < x8 =" 32"> 32 is the same as saying 16 so we have 2 ?/16 2 12 /16 + 2 1/16 = 2 14/16 = s 7/8 1 3/4 + 1 1/8

2) 2 4/5 + 1 1/2 = 3
8/10 + 5/10 = 13/10 = 3 13/10 Three thirteen tenths .

Pythagorean Theorem is the assignment we have worked on the past few weeks
[ A2 +B2 = C2. ]

2nd
The Right Triangle

• 
  -90 degree angle
  -Theta and Beta
  -hypotenuse (side c)
  -legs (side a and b, makes the right angle)
  -half of a rectangle or square

3rd
Square/Rectangle

• 4 - 90 degree angles
• total - 360 degrees
• quadrilateral

Vocabulary

For today I was told to do a scribe about yesterdays test here is some of the questions that were on it.


1st Step : Re-Write and balance
2nd Step : Get the answer
3rd Step : Verify

I
C
BO
V


1st Step : Re-Write and balance
2nd Step : Get the answer
3rd Step : Verify
I
C
BO
V



1st Step : Re-Write and balance
2nd Step : Get the answer
3rd Step : Verify
I
C
BO
V

Before winter vacation we had watched a movie called "Pay it forward", which is about a boy who had a social studies assignment to change the world by helping people then telling them just to pay it forward. Our assignment was to do an act of kindness. Here are the questions.
1) Who are you going to help?
2) What are you going to do?
3) Where are you going to do this?
4) When are you going to do this?


This winter the task I chose is to put up most of the decorations inside and even outside my house. On the day before Christmas Eve my dad and me had went to buy new Christmas light for the front yard and some Christmas tree decorations. When we got home the first thing i did was to check if all the lights worked and put them up. By the time i had finished i started Putin up the tree and putting on the decorations.
Here's a picture.

( picture is not uploading ) ill try to get it up tomorrow.

Then from there I told my dad to pay it forward and he helped my neighbour put up some of there lights and then after new years my dad told me half of my street got " payed forward " and it had started with just 1 person. When he told me i got very surprised and I felt good inside.

The Question we had to answer was can one person make a difference?
I think 1 person can make a difference from the experience i had this winter made me thing alot about this question so yes one person can make a difference.
Happy new years .

Chapter 3 One step Equation Solving

Today in class we were given page 43 and 44 in the yellow booklet to do today. Mr.Harbeck gave us 10 minutes to work cause he is very nice. WARNING: On #8 balloon is spelt baloon .

The questions i was given to do on my scribe was 6 - 10 on page 44 for F.


Translate all the questions into an expression involving integers and find the integers that represents the overall change.


This is how to do #6


Step #1 Read the question :

A certain stock starts at 319 points, gains 55 points, drops 45 points, and drops 28 points.


Step #2: Write down all the integers you see, then answer using brackets, plus signs etc ..

#7

An elevator starts on the 9th floor, descends 5 floors and ascends 9 floors.

#8

A helium filled balloon is released, gains 53 m , drops 32 m, gains 47 m, and drops 38 m.

Now that i showed you how to do 3 you should now know how to do the rest. All of this is due tommaorw.

Here is a video on integers.

I choose Brenden.M to do tomorrows post.

Here Is a video explaining mean, median, and mode