## Friday, September 26, 2008

### Congratulations and Welcome!!!

Thank you all so much for welcoming our newest classmates with such warm smiles and applause. We had a great day of reviewing Unit 1 today so that our new mathematicians feel like they didn't miss out!

We started learning how to use the traditional method of long division today.  Here are some helpful websites on long division:
Long Division - Choose your own divisors and dividends!
Long Division Game - Very funny...HEE HAW!!!

## Monday, September 22, 2008

### Unit 1 Study Guide

1. Know the definitions of the following words:

columns - vertical lines of data

rows - horizontal lines of data

arrays

factors

products

prime

composite

square numbers

2. Be able to find all the factors of a number by making arrays or making a rainbow factor.

3. Be able to find the prime factorization of a number. (journal p. 24, student reference book p. 12)

4. Be able to square a number (ex. 42 = 16) and unsquare (tell the square root of) a number. (ex. the square root of 16 is 4) (p. 6 in student reference book)

5. Tell whether a number is odd or even, prime or composite, or is square. (p. 4, 12, and 214 in student reference book)

6. Be able to use the divisibility rules on p. 11 of student reference book.

Our first test will be on Wednesday, 9/24/08.  I know that you will do great!!!  If you have any questions, or would like to review any of the concepts with me, please let me know. :)

## Friday, September 19, 2008

### Square Number Games

Find the square root of the square number here.

## Thursday, September 18, 2008

### MAP Test

Great job today, fourth graders!  You all stayed focused during today's MAP test in the LMC.

Here are some multi-digit multiplication problems for you to practice.  Click here.

## Wednesday, September 17, 2008

### Goldbach's Conjecture

Click here to explore Goldbach's Conjecture with this calculator.  Click on any even number greater than 4 and the calculator will find all the Goldbach pairs.

## Thursday, September 11, 2008

### Divisibility Rules

Today we went over the divisibility rules for 2, 3, 5, 6, 9, and 10.  Click here to see the divisibility rules for 2-12.

Tonight's homework:  SL 1.5 and Enrichment 1.5

## Wednesday, September 10, 2008

### Magic Squares

Great job on trying the enrichment lesson last night!  I know some of you got frustrated trying to figure it out, but I'm proud of you for giving it a shot!

Tonight's homework is Study Link 1.4.

to play a factor game that is similar to the one we played in class. Make sure you follow the directions because it is slightly different from how we played. You can either play against the computer or with another opponent at home!

## Tuesday, September 9, 2008

### Schoolhouse Rock Multiplication Videos

My Hero Zero

Elementary, My Dear(2s)

Three is a Magic Number

The Four Legged Zoo

Ready or Not (Multiply by 5's)

I've Got Six

Lucky Seven

Figure Eight

Naughty Number Nine

The Good Eleven

Twelvetoes

### Tuesday, September 9

Tonight's homework is to complete study link 1.3 and enrichment lesson 1.3.

Our first enrichment lesson was on magic square arrays.  Click here to test your knowledge on magic squares!

## Monday, September 8, 2008

### District Math MAP Test Schedule

Fourth grade students will take the Math MAP test with their Math class.

Miss Lee’s Math Class will take the test on Thurs., Sept. 18, at 1:30 p.m.

-Miss Lee

## Saturday, September 6, 2008

### What We Hope to Learn This Year...

Here's what our class is most looking forward to learning in math class this year:
• how to multiply big numbers like 80 x 73
• I want to learn how to learn to add and subtract fractions.
• I want to learn to do long and hard and confusing division.
• I really want to learn about percent.  I know how to do very easy percent.
• I want to learn about percents.
• how to multiply and divide fractions
• how to use a protractor
• writing fourths and fifths in decimal form
• protractor and * sign
• Almost everything!
• long multiplication
• long division
• how to add, subtract, divide, and multiply fractions
• I am really anxious about learning big division.
• I want to learn what fractions like 6/5 mean.