9/20/11 HOMEWORK

CHAPTER 4 VOCABULARY CROSSWORD PUZZLE
PAGE 188 21-36

Chapter 4 Crossword Clues

Across

1.  Fractions with the same denominators.

4. A fraction that has a numerator less than the denominator.

5. Different fractions that represent the same value, like 1/2 and 2/4, and 4/8.

6. A number is _______ by another number if the quotient is a whole number without a remainder.

11. When the greatest common factor of the numerator and the denominator is 1.

12. A number with more than two factors.

14. A number that only has two factors 1 and itself, like 11 or 3.

15. Renaming fractions so that they have the same denominator.

16. A decimal that does not end, like .33......

Down

2. A fraction that has a numerator greater than the denominator.

3. The largest common factor that are shared by two numbers.

7. Fractions with different denominators.

8. Whole numbers that are multiplied to find a product, 2 and 3 are factors of 6.

9. A decimal that stops, like .75 or .25.

10. A number written as the product of its prime factors.

13. A number that contains a whole number greater than 0 and a fraction.

 CHAPTER 4 VOCABULARY CROSSWORD PUZZLE

Math in Movies?!?!?!

Here is a funny clip from "Father of the Bride" where George Banks is having a fit over hot dog buns. This is actually a Least Common Multiple problem he is having. Maybe you have had this problem too. Why do the grocery stores sell more or less buns per package than the number of hot dogs per package?

HAPPY TUESDAY EVERYONE!!!!!

Today in class we will be doing a review of the following things

• Prime and Composite
• Divisibility Rules
• Least Common Multiple
• Greatest Common Factor

We will also begin talking about fractions.

FACTORS AND MULTIPLES

EXTRA PRACTICE AND FUN TOO!!!!!!!!!!! VISIT THE FOLLOWING LINKS FOR FUN AND GAMES.

FACTORS & MULTIPLES JEOPARDY
http://www.math-play.com/Factors-and-Multiples-Jeopardy/Factors-and-Multiples-Jeopardy.html

GHOST BLASTERS
http://www.oswego.org/ocsd-web/games/Ghostblasters1/gbcd.html

9/19/11 HOMEWORK

PAGE 230 - #2, #3, #6, #7, #15, #16, #17, #18

INSTRUCTIONS

1. LIST ALL THE MULTIPLES OF EACH NUMBER.
2. CIRCLE THE COMMON MULTIPLES.
3. FIND THE LEAST COMMON MULTIPLE (LCM)

FOR MONDAY

1. KNOW THE DIFFERENCE BETWEEN PRIME AND COMPOSITE NUMBERS.
2. REMEMBER HOW TO FIND FACTORS AND THE GREATEST COMMON FACTOR (GCF).
3. STUDY DIVISIBILITY RULES FOR ANOTHER QUIZ.
4. FILL OUT THE K-W-L WORKSHEET ABOUT MULTIPLES AND LEAST COMMON MULTIPLES.

DIVISIBILITY

You have to know the divisibility rules, they can be very helpful when trying to figure out factors especially when you are dealing with numbers that are out of your comfort zone like 482.

Divisibility Rules

A number is divisible by ......

• 2 if the last digit of the number is an even number.
• 3 if the sum of all the digits in the number can be divided evenly by 3.
• 4 if the last 2 digits of the number can be evenly divided by 4.
• 5 if the last digit of the number is a 5 or 0.
• 6 if the the number is divisible by 2 and 3.
• 9 if the sum of the digits is divisible by 9.
• 10 if the last digit of the number is a 0.

CHECK OUT THE DIVISIBILITY RAP. Some of my students last year created this to the theme song of "Fresh Prince of Bel Air." The lyrics are below.



Now this is the story (pause) all about how
divisibility rules gets used in the schools
and we’d like to take a minute just sit right down
We’ll tell you how to divide like the best in town

In Ballard County born and raised
In the classroom where we spend most of our days
Sittin back, list’nin, learnin all cool
Mrs. White teachin divisibility inside the school
She gave a couple problems, they were no good
we started having trouble in her neighborhood
She say 2, 3, 4, 5, 6, 9, 10
Gotta follow the rules if you wanna win

So we listened to the rules and now we believing
You can divide by 2 is the last digits even

Divide by 3? It different you see
The sum of the digits has to divide by 3

The rule for 4 is about the last 2 digits
And if you can divide them by 4 do ya get it?

Dividin by 5 is easy you know
If the number end with 5 or 0

To divdide by 6 you gotta say yes
To 3 and 4 with success

Dividin by 9 is like 3 but this time
You add the digits and divide by 9

And then theres 10 its so easy
When the number ends in 0 it’s a breezy

She gave us some problems bout 12 or 13
And we yelled to the teacher “yo white this aint nothing”
Looked at the homework, we were done quick
Knowin the divisibility rules does the trick