Track and Field
Wow! What a beautiful day we had for track and field tryouts. Congratulations to all students. The team will be posted next week.

Math
At the end of the day (I know everyone was tired), we began multi-digit multiplication. The grade fours do not need to know the standard algorithm for 2-digit x 2-digit, but the grade fives do need to understand it. When given a choice, choose the strategy that you find most comfortable or easier.

Multiplying a 2-Digit or 3-Digit number by a 1-Digit Number

Strategy #1 Expanded Form

68 = 60 + 8, so if we multiply each of these by 6 and add them we get the product

68     60      8
x6     x6    x6
        360   48

360
+48
408

479 x 7 = 400 + 70 + 9

400 x 7 = 2800     70 x 7 = 490     7 x 9 = 63

2800
  490
+ 63
3353

Strategy # 2 Standard Algorithm
 4                         5  6
 68             479
 x6              x7
408          3353

You regroup the 4 tens when you multiply 6 x 8, then add the tens you regrouped AFTER you multiply 6 x 6

Strategy # 3 Reasoning and Arrays

You know that 68 x 6 is 6 rows of 68
6 rows of 70 is 420 so if you subtract 12 from this product (you added 2 extra to 6 rows) the product should be 420 - 12 = 408

Multiplying a 2-Digit number by a 2- Digit Number

Strategy # 1 Area Model

We know that area of a rectangle equals length x width. We find the areas of 4 related rectangles and add the products.

Strategy # 2 Algorithm

Watch the video below to review the algorithm (only grade fives need to know this)
https://www.youtube.com/watch?v=RVYwunbpMHA

Try these products:

Keep studying your multiplication facts. You will struggle with multi-digit multiplication and division if you don't learn them fluently.

There were more review questions posted on the weekend.

Word Study

Reminders

• Word test tomorrow. No words for this week (PD Day on Friday)
• Grandparents day on Thursday
• End of the year field trip permission form and money. 
• Bring INDOOR RUNNING SHOES!