Addition and Subtraction Strategies

We have been discussing the many ways to add and subtract.  The first thing your child needs to do when reading a problem is to know whether they are solving a comparing (addition), separating (subtraction of some went away), or comparing (subtraction of finding the bigger, smaller, and difference).

After your child know whether they are comparing, combining, or separating then the solving begins!!

Please practice these strategies at home!

There are many ways to add.

Traditional way -  this may involve regrouping numbers:

Number line - by jumping the hundreds, the tens, and the ones:

Partial Sums - The numbers can be broken a part by their place value and then added:

Adding one number in parts - One number can be broken in parts and then added:

There are many ways to subtract:

Traditional way - this may involve regrouping numbers

Number line - by subtracting on the number line by jumping the hundreds, tens, and ones.  This could be done in several ways so see the pictures below.

Partial Differences - the numbers are broken into parts by their place value

Subtracting one number in parts - one number is broken in parts and then subtracted with the other number

Videos made by Mrs. Jones also explains our strategies

http://youtu.be/HEJmAC0s-LQ

http://youtu.be/2znSv_qiTjA

Fun in Science and with Mrs. Jones' Class during experiments!

We have been experimenting what sinks and what floats.  Use different liquids at home and see what floats in each liquid!

We have fun with Mrs. Jones' class to explore the different physical properties of objects.

Author Visit - Melissa Sweet

Math Concepts Taught The First Few Weeks

Place Value
We have been studying how to write 6 digit numbers in standard form, word form, and expanded form.  
Example:
standard form: 639,547 
expanded form: 600,000+30,000+9,000+500+40+7
word form: six hundred thirty-nine thousand, five hundred forty seven

Mrs. Jones made a video to help with place value for viewing at home.  

http://www.youtube.com/watch?v=bTi-pTAb034&feature=player_embedded


Number Lines
We have been studying how to locate points on a number line and what points on a number line represent a number.  There are two types of number line questions that will be asked this year.
1. What point best represents point A?
2. What point best represents a number?

We always find the rule to our pattern before answering the question.

Another video made by Mrs. Jones can be viewed to help at home.

http://www.youtube.com/watch?feature=player_embedded&v=SZccqlm-2EQ

Fun in Science!

If you had the chance to come to curriculum night and even if you didn't get the chance to come, I hope you know that I LOVE science!!  We do so many fun experiments in class and learn concepts and vocabulary.
Last Friday, August 31st and Tuesday, September 3rd we explored how to use different science tools like the graduated cylinder, brockscope, eye droppers, beakers, and funnels.  Students used rulers to see how far they can jump.  We have some great jumpers!  I am happy to have great scientists in our class!