Questions:

Big Idea: The strategies that I'm learning at the moment is: R/C, E/A and P/V. If you don't know what these strategies do or what they mean, here is my explanation. R/C stands for "Rounding And Compensating" We basically round a number from our equation, then add how many numbers we rounded in the first place. If that makes no sense, here is an example: 63-39=? 63 - 40 +1 =24.

E/A stands for Equal Additions. This is the same as R/C but except from add after the equation, we add before the equation. For example: 63-39=? 64-40=24. And P/V stands for Place Value.

You are probably wondering what answers I got. Well, here are my answers as well as what strategies I used.

1) (P/V)

345 + 379 = 724

300 + 300 = 600

40 + 70 = 110

5+9 = 14

600+110+14=724

2) (Trial & Error + Equal Addition)

(It took ALOT of trial and error, so here are only a few of the equations that I worked with.)

155-119 = 156 - 120

+1 +1

=36

____________

215 - 119 = 216- 120

+1 +1

=96

___________

215 - 115 = 220 - 160

+5 +5

=60!!

3) (Trial & Error +Algorithms, with help from Bella)

379

+119

____

=489

________________

379

+45

____

=424

________________

289

+155

____

544

________________

289

+137

______

=426!!

4) (Algorithms)

289

155

____

134

FeedBack/Feedforward:

WOW Aye, you are defiantly showing a lot of stratagies and what you have been very good at. You could work on showing

the Reversibility strategy. I really think you have shown us what you know and what to work on. You have done a lot of work on this as I have seen you in class. Amy

Evaluation: Thanks Amy. I really think I have learned a lot of strategies that I have never have known before. I think I might need to use more strategies that may be a good match for the equation. Other than that, I think I have gotten a better understanding of different strategies. I hopefully can use these strategies in High School or College or my job!

Great to see you thinking ahead to your future Aye! These strategies will come in very handy!

ReplyDeleteYes, Stage 6 is all about choosing the most efficient strategy depending on the relationship between the numbers. We want to see Equal Additions, Place Value Partitioning, Reversibility and Rounding & Compensating. Keep trying to look at the relationship between the numbers to decide what strategy is best to use.