Prime and Composite Numbers and a bit of Divisibility Rules

We reviewed a bit of our divisibility rules today in class.  As an intelligent parent mentioned...  Technically all numbers are divisible by all numbers, but they often result in yucky, long decimal values.  When I talk about "divisible" I mean EVENLY divisible.  :)

We completed the large wall Venn Diagram in class today.  A big thanks to my Green class that put ALL of the numbers in the Venn Diagram...

OR THE BOX OF SHAME!



We also began to learn about Prime numbers...

We used the Sieve of Eratosthenes to identify the primes from 1-400.  Try it yourself on this page.

Want some practice learning about Prime and Composite numbers?  Check out this tutorial from Math is fun.

No actual homework this weekend, but we will have a quiz on September 23rd.  I handed out a study guide in class, but it seems like a few people left it behind...  Read below to see what you might have forgotten to bring home!

You are responsible for the following information for this quiz:

1)  Divisibility Rules - you will be given a number and must be able to determine whether it is divisible by 2, 3, 5, or 10 using a Venn Diagram.

          For example:  56,340   

              (You would place the number  in the correct space on the Venn Diagram)

***You must have the divisibility rules memorized***

 

2)  Prime and Composite Numbers - you must know the definitions of prime and composite numbers

          Prime Numbers - the only factors of a prime number are 1 and itself

          Composite Numbers - Composite numbers have other factors besides 1 and itself

You must also be able to sort a list of numbers in two groups: prime & composite

 

3)  Probability & Ratio

You must know how to write a ratio in lowest terms and find the probability of an event as a fraction in lowest terms.

For example ~ Probability:  A junk box contains 5 markers, 6 pom-poms, and 3 beads.  What is the probability of picking a marker from the box without looking?  Answer:  5 out of 14

Ratio:  What is the ratio of pom-poms to markers?  Answer: 6:5 or 6 to 5 or    6

                                                                                                                       5

 

4)  Percent

You must be able to identify the percent when given a fraction or ratio.

=

For example: A junk box contains 10 markers, 6 pom-poms, and 4 beads.  What percent of the pom-poms is in the box?   Answer:  6          30   = 30%

                                                                             20        100

See you all on Monday!  Have a great weekend!

-Miss K  :)

 

Divisibility Rules

Hello, hello, hello!

Today we learned the divisibility rules!  Tonight's homework is to complete the divisibility worksheet.  Can't find your homework or were absent?  Click here to get a printable copy of the worksheet.

First we defined the words Factor, Multiple and Product:

This picture may may the concept clearer:

Check out the rules:

For tonight's homework, you will determine which numbers are factors of various values.  Here's an example of how you complete the homework:  (ps- These are the first four problems...  Feel free to copy them if it helps you learn!)

Now, we only went over a few divisibility rules.  There are many others...

2	If the last digit is even, the number is divisible by 2.
3	If the sum of the digits is divisible by 3, the number is also.
4	If the last two digits form a number divisible by 4, the number is also.
5	If the last digit is a 5 or a 0, the number is divisible by 5.
6	If the number is divisible by both 3 and 2, it is also divisible by 6.
7	Take the last digit, double it, and subtract it from the rest of the number; if the answer is divisible by 7 (including 0), then the number is also.
8	If the last three digits form a number divisible by 8, then so is the whole number.
9	If the sum of the digits is divisible by 9, the number is also.
10	If the number ends in 0, it is divisible by 10.
11	Alternately add and subtract the digits from left to right. (You can think of the first digit as being 'added' to zero.) If the result (including 0) is divisible by 11, the number is also. Example: to see whether 365167484 is divisible by 11, start by subtracting: [0+]3-6+5-1+6-7+4-8+4 = 0; therefore 365167484 is divisible by 11.
12	If the number is divisible by both 3 and 4, it is also divisible by 12.
13	Delete the last digit from the number, then subtract 9 times the deleted digit from the remaining number. If what is left is divisible by 13, then so is the original number.

And in a cute poem form...

I hope that this helps!  If you forgot to bring in your Hot Pink sheet or didn't get it completed, please bring it in signed tomorrow!  Thanks!!!!

-Miss K  :)

Anyone else watching Survivor?

You can try the game that Coach and Ozzy had to play at the beginning of the episode!

Tower of Hanoi Game

I think that they had either 6 or 7 levels...  Try it out by clicking the link above and selecting the number of disks.  Good luck!  Don't let it drive you crazy!

-Miss K  :)

Perspective

-Miss K  :)

Benchmarked!

Great work on the benchmark today!  Everyone finished with no problems!  If you were out today, please let me know when you can make it up.  It should take about 20 minutes and can be finished during a study hall or a lunch period if we need it to be.

Today's homework is to get BOTH SIDES of the hot pink sheet signed by your parent(s)/guardian(s).  If you forgot you pink paper at school, please print out this document and get the signatures!

Is there any other homework:



Have a good night!

-Miss K  :)

Hammonasset(t)

I had so much fun today!  I will post pictures in a few days.  Once I get permission from your parents to put pictures up!  Thanks for making today wonderful!  I hope that you all had a great time too!

What was your favorite part of the day?  Leave your answers in the comments!

-Miss K  :)

Heading to Hammonasset!

Aaaaghhhhhhhhh!   I'm so EXCITED!!!!

-Miss K  :)

Ratios

Today we began working with ratios.  We know that a ratio is a comparison of two values set up in one of three ways.

A Fraction...  2/10 or 1/5 shows the ratio of my thumbs to the digits on my hand

Using the word "to"...  The ratio of core classes to related arts classes is 4 core classes to 3 related arts classes

Using a colon...  The ratio of years I was a student at Brown to the years I have been a teacher at Brown is 3:11

Want to know a little bit more about ratios?  Check out this short tutorial on Math.com or this Purplemath.com information.



Your only homework is to get ready for the trip tomorrow.  Remember to bring a lunch, dress in older clothes, bring some mucking around boots and remember to bring in any forms that you didn't get in today!

-Miss K  :)

Thanks for your great work on the patterns today!

So many cool patterns!  I will download the pics from class and post them soon!

Have a lovely weekend!!!!

-Miss K  :)

Patterns

Happy Thursday to my wonderful new students!  So we started learning about patterns today...  I am sure that you have seen patterns in school and in real life many, many times before, but we get to explore patterns again!

We have seen numerical patterns:

like this simple one:  2, 4, 6, 8, 10, 12.....

and this much more difficult one:  5, 9, 17, 33, 65.....  (By the way, if you think you know the pattern, leave the "rule" in the comment section!)

We have also seen visual patterns:

- = + = - = + =

Designs also have patterns:

  

As you know, your homework tonight is to go on a pattern hunt!

1)  Find a pattern and bring it in.  This should be something that you can give to me, so your backpack or the bottom of your shoes does not count.  I will return the item if you would like it back.  If you have a photo or image that you want to use, you can email it to me at kahrimanisn@madison.k12.ct.us and I will print it out.  Just remember that I will only be able to print in black and white.

Here is the example video from class today:

2)  Wear a pattern (or patterns) to school tomorrow.  You can be as simple or as crazy as you would like, but make sure you have at least one pattern on.  Here is an example from last year!

I can't wait to see your patterns tomorrow!  Have a good night!

-Miss K  :)

"Me" Infographic

Hey everyone!

I hope to see a few more hit on the blog today!  I hope that you all found this easily enough!  :)

Today in class we were able to make infographics about ourselves.  If you were unable to finish, please finish your infographic for homework.  Here's my example:

Remember that you should include your name in the center.  The top left is some of your "favorites."  Top right is how you feel about math.  Bottom left is your hobbies and interests and the bottom right are things that are special, different or interesting about you!

Good luck!  See you tomorrow!

-Miss K  :)

Letter activity

Questions about the Letter Activity?

“One word, action, or deed can make all the difference!”

Welcome to Team 6-3.  We are really excited to meet all of you and find out a little bit more about each of you.   This is going to be a great year with so many exciting things to learn.

Each member of the team is receiving a letter, and when those letters are combined, they will spell out some words we feel represent what our goals are for this upcoming year.

 Your job is to personalize your assigned letter.  Here are some guidelines:

§  Do NOT cut the letters out.

§  If you color the letters, do not go outside the lines.  We need to be able to identify the letter as we spell out the words.

§  Please take the letter you were given and jazz it up.  Color it, draw pictures on it, add sequins, whatever makes you happy!  You can even use clip art (my favorite!) 

§  If you have any questions, please see your homeroom teacher.

Please bring your completed letter to your homeroom teacher by September 9^th , 2011. 

We are looking forward to seeing your creativity. J

Don't forget to have your parents fill out the paperwork you received during homeroom today!  :)

-Miss K  :)

Welcome to my Blog!

SCHOOL FINALLY STARTED!!!!  Wahoo!

I was really looking forward to the start of school and was bummed that it was delayed because of Irene.  Though it was quite an adventure, I am glad that the storm and the power outage are a thing of the past now!

Eric Clapton- "Goodnight Irene"


^Some awesome hair in that video huh?^

So...

Welcome to the Blog!!! 

I am really excited that you are here!  I plan to use the blog for posting homework, class help, photographs from class, fun videos, interesting web stuff, infographics and anything else that I find fun and worthwhile.  I plan to do my best to post every day.  If you think of something interesting that you would like to see, just let me know and I will see what I can do.  :)

Now, as you may or may not know, a blog is a "public" place.  Just like school and real life, I expect appropriate behavior, kind and intelligent words and respectful interactions.  You are able to post comments on the blog by selecting the comments link below.  If you do so, you can either post as anonymous and include your name in your comment or input your name.  Whatever you choose, be sure to follow these safety guidelines:

• Only use your first name- If you want to include your last initial, that is fine too
• Do not post phone numbers, addresses or any other personal information
• Only post with your parents' permission
• Check with me is you have any questions or concerns

You will soon receive a permission slip from me asking your parents for permission to post photographs from class.  Once those are returned, I will begin taking photos during class and posting them for you to view!

Please feel to take a look through my old posts and leave comments!  In fact, if you found this post, please let me know by leaving a short hello in the comments below along with your first name!

If you have any questions, you can contact me at my school email.

-Miss K  :)

Interactive Infographics of the Internet

Check out this interactive infographic of the internet.

I LOVE infographics!  We will use them in school this year to help us review for tests and quizzes and to understand information!  Keep an eye out for interesting ones that I can post on the blog!

-Miss K  :)

Grade Six Schedule!

Period	Time	A	B	C	D	E	F
	805-8:10	Homeroom	Homeroom	Homeroom	Homeroom	Homeroom	Homeroom
1	8:12 – 9:07	Red	White	Red	White	Red	White
2	9:09 – 9:54	Related Arts
3	9:56 – 10:51	White	Red	White	Red	White	Red
4	10:53 -11:48	Blue	Green	Blue	Green	Blue	Green
5	11:50 -12:15	LUNCH
6	12:18 -1:04	Related Arts
7	1:07 -2:02	Green	Blue	Green	Blue	Green	Blue
8	2:05- 2:50	Related Arts

Ok Go and The Muppets!

Miss K  :)

Star shine!

Light up from David Duvieusart on Vimeo.


-Miss K  :)

Girl Scout cookies infographic

I love infographics!  This one shows sales of Girl Scout cookies by type.  I would have thought that Thin Mints would be a bigger piece of the cookie!

-Miss K  :)