Addition and Subtraction Unit Update

Here is a quick overview of what we have been practicing so far in our Addition and Subtraction unit.  We have been reviewing some of these strategies and other number facts since the beginning of the year, but now addition and subtraction will be our main focus for a while. The best way for you to see how your child is doing with these concepts is to have a conversation about them and do a few practice examples together.  Thanks for reading this post.  There will be more to come in the future as we work our way toward building multiple strategies for solving 2 and 3 digit addition and subtraction problems.

1. Doubles and Near-Doubles Addition Facts:   We spent quite a bit of time practicing our doubles facts as a class and individually.  We focus on doubles because they are often easy to learn and can be a helpful mental math strategy for solving other addition facts that are close to the double. Students practiced solving “near doubles” equations and explaining the strategy as clearly as they can.

Example: (students are asked to show that they can use both of the possible doubles to solve each problem)
6+8=?
I know 6+6=12
6+8 is 2 more.
So, 6+8=14

or

I know 8+8=16
6+8 is 2 less.
So, 6+8=14

2. Making 10:
Example: To solve 6+8  we may think: Take 2 from the 6, leaving 4.  Add 2 to the 8 to make 10, then add the 4 to get 14.

Or, use an adding a 10 fact like the example below.

We know 10+6=16.
8+6 is 2 less.
So, 8+6=14

or

I can regroup my numbers.
I take 2 from the 6, leaving 4.
I added 2 to the 8 to make 10.

 

 

 

 

 

so, 10+4 = 14

We have also been practicing our addition facts that make 10.

3. Related Addition and Subtraction Facts (Fact Families):
Example: If we know 7+6=13 we also know 6+7=13, 13-6=7, 13-7=6.  Using “fact family” knowledge is often most useful for students to solve subtraction equations by thinking of the related addition fact.

Upcoming Dates in January

The following are some upcoming dates you may want to be aware of.

Monday, January 14

  • Fortunately The Milk week 1 answers are due to the library
  • #WESsupthrowdown reading challenge begins

Monday, January 21 – Fortunately The Milk week 2 answers are due to the library

Wednesday, January 23 – SCC Pita Pit hot lunch

Monday, January 28 – Fortunately The Milk week 3 answers are due to the library

Tuesday, January 29 – No classes for students

Thursday, January 31 – Grade 3 classes are going skating 1:00 – 2:15

 

Reading Challenge

Our school has challenged Lake Vista School, in Martensville, to a reading contest. For the next two weeks, we will keep track of our reading minutes and tally them up at the end of the competition. Record forms will be sent home on Monday. Check out the video to learn more.

Math: Addition and Subtraction

Your child’s class has started a mathematics unit on addition and subtraction. Your child will develop strategies for adding and subtracting whole numbers by using addition charts, mental math, estimation, Base Ten Blocks, place-value mats, and pencil and paper.

In this unit, your child will:

  • Recall basic addition and subtraction facts
  • Identify and apply relationships between addition and subtraction
  • Add and subtract 2-digit numbers
  • Use mental math to add and subtract
  • Estimate sums and differences
  • Add and subtract 3-digit numbers

The ability to use a variety of strategies to add and subtract leads to the development of a strong sense of number.

Here are some suggestions for activities you can do with your child.

  • Play Store with your child. Price some of the items in your home in cents (for example, the cup of noodles costs 149 cents and the baguette costs 35 cents). You are the Shopper and your child is the Cashier. Have your child add the cost of the items you buy.
  • Roll a number cube 4 times. Use the numbers rolled to make two 2-digit numbers. Have your child subtract the lesser number from the greater number. Repeat the activity. This time, roll the number cube 6 times and make two 3-digit numbers.

Hot Lunch Schedule

Your School Community Council has organized monthly hot lunch days through Healthy Hunger. Profits from
this initiative go into Council fundraising projects like the recent picnic tables installed on the playground.
The dates of our up coming hot lunches are January 23, February 13, March 20, April 17, May
15, and then sometime in June (all WEDNESDAYS for GR. 1-5 & KA -with KB Kindergarten classes being
offered hot lunch on Thursdays).
If you already have an account please proceed to the Health Hunger website (www.healthyhunger.ca) and log
into your account. At the end of the school year Healthy Hunger always erases your child(ren) from your
account so you will be prompted to add your child(ren) and which grade/teacher they are with this year. Please
ensure that you select the city/town as Warman and the school as Warman Elementary School. Once you have
added your child(ren) you are then able to place your order. If you are new and have not created an account,
please proceed to the Healthy Hunger website and click the green Learn more button under Parents and then
signup a free account.
• Once you are in your account you will notice that we have set up most of the hot lunch dates for
the year. If you would like to proceed and order all of your lunches available to date you can.
You can also come back into your account at any time and order or make changes to your orders.
• Nutritional Guide available upon request
………………………………………………………
If you have any questions about the lunch, please contact Denaye Merz at dmerz@sasktel.net. You can also call
Healthy Hunger if you have any questions about the site at 1-800-818-6260.

Winter Cityscapes

Over the past several days, the students created a winter cityscape in our art class.  They spent a lot of time drawing their pictures with pencils, tracing their pencil lines with permanent marker, painting the background and buildings, and using white paint and Q-tips to create snowflakes.  Their artwork is currently posted on the bulletin board at the back of our class.