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






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

Click here to play Perfect Squares Number Cop.

Click here to play Spooky Sequences Square Numbers.

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.  

Click here to play a divisibility game.

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.

We enjoyed learning how to play Factor Captor today.  Click here
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


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.

Please help your child get a good night’s rest before the test and eat a healthy breakfast the morning of the test. Thanks so much!
-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.