Our Math Focus Until Christmas Break!

From now till Christmas break we will be working on adding double digit numbers using re-grouping. This is exactly like the term you may be more comfortable with...carrying. They add the ones together and then if there are more than ten ones they re-group them into the tens column. Take a look at the picture below. This is how I am teaching the kids how to do it.

Our Math Focus for November 30th-December 8th!

In our last unit we worked on adding two digit numbers in our heads. This next unit, we will work on subtracting double digit numbers in our head. Below you will find some examples of strategies we will use to help us solve these problems mentally.


Subtracting tens and ones:

55-20= 35    

55 45 35
     10 10

64-23= 41

64 54 44 43 42 41
     10 10  1   1   1


Adding on to find the missing part:

55-20= 35

20+__=55

20 30 40 50 55
     10 10 10  5 = 35

64-23= 41

23+__= 64

23 33 43 53 63 64
     10 10 10 10  1= 41

Math Focus for November 16th-27th!

We just finished learning about counting money and now we will start Unit 6 which focuses on learning how to add double digit equations in our heads.

 We will learn how to add 10 to double digits...for example 51+10= or 51+30= The kids will learn to count on and add the tens. 51+10= 51 add 1 ten would be 61! 51+30= 51 add 3 tens would be 61, 71, 81!

We will also learn how to add tens and ones to a double digit number. 51+15= 51 add 1 ten would be 61 and then add 5 ones would be  62, 63, 64, 65, 66! Or 51+35=  51 add 3 tens would be 61, 71, 81. Then add 5 ones. 82, 83, 84, 85, 86!

I know this may look confusing. Hard to describe this wonderful strategy on a website! Make sure you look at how your kids did their lessons and try to teach it the same way on their homework!

Our Math Focus Nov 2nd-13th

In math we are starting Unit 5. This unit focuses on counting coins. The kids will learn how to identify coins. They need to know the name and value of a Half Dollar, Quarter, Dime, Nickle, and Penny. They also need to be able to add them up to one dollar. They need to be able to solve story problems with coins in them too.

Here are some fun poems we are learning to help us remember the name and value our coins.

Half Dollar, half dollar,
Biggest coin yet!
You're worth fifty
Cents I bet!

Quarter, Quarter,
Big and bold.
You're worth twenty-five
I am told.

Dime, Dime,
Little and thin.
I remember,
You're worth ten!

Nickle, Nickle,
Thick and fat.
You're worth five cents,
I know that!

Penny, Penny,
Easily Spent,
Copper brown,
And worth 1 cent.

Math Focus for October 16th-30th

Our class will start Topic 4, Place Value: Numbers to 100. They will learn ways to count, compare, and order two-digit numbers. Here are the new math vocabulary: Greater than, less than, equal to, tens, ones.

They will learn to show how many tens and ones are in a number.
For example:
45 has 4 tens and 5 ones.
45 has 10, 10, 10, 10, 1, 1, 1, 1, 1

They will also learn the greater than and less than symbols.
For example:
5>1
2<6
7=7

Math Focus for Oct 5th-15th

Dear Families,

For the next few days we will start Topic 3, Subtraction Strategies. We will learn different ways to subtract from numbers up to 18. Here are some of the things we can do to help with our math.

Please work on the math homework with your child.

Here are some of the strategies we are working on:

Double Digit Subtraction:

12-6 so 6+6=12 so 12-6=6
10-5 so 5+5=10 so 10-5=5
14-7 so 7+7=14 so 14-7=7

Think addition to subtract:

7-4= so 4+_=7 so 4+3=7 so 7-4=3
8-3= so 3+_=8 so 3+5=8 so 8-3=5
6-5= so 5+_=6 so 5+1=6 so 6-5=1

14-6= so 6+_=14 so 6+8=14 so 14-6=8
16-7= so 7+_=16 so 7+9=16 so 16-7=9
11-8= so 8+_=11 so 8+3=11 so 11-8=3

XtraMath

We are using a program called XtraMath to increase speed and accuracy in arithmetic. Your child is invited to spend a few minutes each day practicing math on a computer, tablet, or phone. If you would like your child to do XtraMath on a tablet or smartphone, look for XtraMath in the app store. The app costs $5. On a laptop or desktop computer, he/she can do XtraMath for free at xtramath.org.

Go to the website and get them practicing at home! If you need to enroll them at home please let me know and I can send a flyer home on how to do it.

Addition Strategies from Unit 2!

Dear Families,

We are currently working on Unit 2 in Math. We are working on Addition Strategies! I wanted to share a few of those strategies on here.

Double Addition:

1+1
2+2
3+3
4+4
5+5
6+6
7+7
8+8
9+9

Near Double Addition:

1+2 so 1+1=2 so 1+2 is one more so it is 3.
2+3 so 2+2=4 so 2+3 is one more so it is 5
3+4 so 3+3=6 so 3+4 is one more so it is 6

Make 10 out of 9:

9+1 so 10+0 is 10, 9+1=10
9+2 so 10+1 is 11, 9+2=11
9+3 so 10+2 is 12, 9+3=12
9+4 so 10+3 is 13, 9+4=13
9+5 so 10+4 is 14, 9+5=14

Make 10 out of 8:

8+2 so 10+0=10, 8+2=10
8+3 so 10+1=11, 8+3=11
8+4 so 10+2=12, 8+4=12
8+5 so 10+3=13, 8+5=13
8+6 so 10+4=14, 8+6=14

If you could practice these at home that would be wonderful!!