Frederickson Free Press

- Issue 14 - January 11, 2015

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This week, our class began our study of multiplication. To begin with, we began with studying what multiplication is, and where you might use it. We learnt that multiplication is putting numbers into groups, and we discussed that instead of saying the word "time" when they see a multiplication question, they should mentally tell themselves "groups of." Ex. 2x3 is 2 "groups of" 3. Students learnt ways to put these into groups and find the total number.

As you know, multiplication is a critical skill in helping students as they further their mathematics. Now that students have an understanding of what multiplication IS, we are now going to move on to becoming more comfortable, and hopefully, memorizing most of our facts. As we progress through the facts, I will be teaching them tricks and strategies so that they can commit these facts to memory, and help them figure out facts they don't already know.

In order to help your child with their multiplication facts, I would encourage you to take time at home to practice the facts with them for 5 minutes. Repetition is key to mastery. The students will be writing which facts they are currently working on in their agenda, so you can flip to the current week of their agenda, and quickly see how you can help. Please practice the facts they are currently working on, but also review those that he/she has already learned.

We learn the multiplication facts in a particular order. The easiest facts will be learned first. Here are some of the tricks and strategies that we will be using for multiplication facts. Of course, memorization is ideal, but it is important to have strategies for when we can't remember a fact.

Grade 3 Order: (Grade 3 students are expected to multiply to 5x5)

0's - Anything times 0 is 0 (ex) 6x0=0, 0x21=0

1's - Anything times 1 is itself (ex) 3x1 = 3, 99x1= 99

2's - Think of the addition doubles (ex) for 2x5, think 5+5 (2 groups of 5),

5's - Skip count by 5's (5, 10, 15, 20 ...) (ex) for 5x4, skip-count by 5's 4 times (5,10,15,20)

4's - Think of "doubles' doubles" or the double of the double. ex) for 4x3 - you know 3x2 is 6, so do it again to make a group of four - another 3x2 = 6 6+6 = 12

3's - Skip Count by 3's (3, 6, 9, 12 ...) OR "doubles plus one more group" (ex) for 3x4, double the four to make 8, and then add one more group of 4 to make 12.

Grade 4 Order: (Grade 4 students are expected to multiply to 10x10)

0's - see above.

1's - see above.

2's - see above.

5's - see above.

10's - Add a zero to the end of the number being multiplied. (ex) 4x10, add a 0 to the 4 to make 40.

11's - When you multiply by 11, both digits of the product (answer), are the number that you are multiplying by. (ex) 11x9 = 99 3x11=33

9's - This trick sounds confusing at first, but do it a couple of times, and you will find that it is so great & works very well:

First, look at the equation and find the factor that is not the 9 (ex) in 9x4, look at the 4.

Next, subtract 1 from that factor (4-1=3). Place this number in the tens place of the answer (the answer will be thirty something).

Then, ask yourself, what do you add to 3 to make 9? The two numbers in the answer will always equal 9. (In this case, 3+6 =9, so the second number in the answer is a 6).

The answer is 36.

4's - See above.

3's - See above.

6's, 7's, 8's - Build on facts that you already know to solve. (ex. to solve 6x6, use a fact you already know like 6x5=30, and add one more group of 6. To solve 7x8, think of a fact you already know, such as 7x9=63, and subtract a group of 7 to make 56).

If these strategies do not make sense, or you would like more clarification, please do not hesitate to ask me, I would be happy to tell you more about how we are learning multiplication. Thank you for your help!

So What Did you Do at School Today ...?

This week, ask your children about:


Setting Reading Goals for January

Starting Book Clubs - Who's in my club? What is our book club name? How will we run?


Comparing - What is fiction? What is non-fiction?

Thinking about fiction - "Somebody, Wanted, But So" - What is the Lesson?

Thinking about fiction character names by looking at baby names


Beginning Multiplication - thinking in groups - using cups


Class Game of "Scoot"


Social Studies:

Europeans arriving in Canada and meeting the First Nations


Creating teepees and thinking about symbols

Upcoming Dates

January 12 - Ski Trip Forms Due

- Book Orders Due

*Note* - If your child has received a book order birthday coupon from me, feel free to use it in any Scholastic order. It is good for $5 towards any item in the book orders.

January 15 - Mrs. F Away at Training


Grade 3&4 Swimming Lessons will begin in February 2016. Dates TBD.

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