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##### Real life uses of doubles facts?

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 Haley23 Joined: Jul 2012 Posts: 6,458 Senior Member
Haley23

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Posts: 6,458
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Real life uses of doubles facts?
04-22-2019, 08:16 PM
 #1

My P sprung on me that she wants to come see me teach math this week as summative evals are due and all of my walkthroughs/observations have been done during reading.

I have a low second grade group currently working on doubles facts. One of the basic things I need to do for our rubric is explain how they will use this in real life. It's been a long day and I'm not usually planning at 10 PM . Can someone help me out?

I googled and found some pinterest charts, but none of them seemed to really explain why the knowledge of doubles facts was needed. The only thing I can think of is explaining that it's an efficient strategy to add two numbers together, which may come in handy when doing something like counting out money. Other "real world" examples or a better explanation of why specifically doubles facts are needed? I mean, I probably wouldn't use that information when counting money, but it was the only "real world" thing 2nd graders might understand that I could think of...

My 3rd graders are working on perimeter and I have a slide that says, "When could I use this?" with examples like measuring canvas or fabric for an art project or building a fence, garden, or pool. I'm wanting a similar slide for the 2nd grade group but just can't think of anything that specific. I'm sure someone on PT has more brainpower than me right now!

 1956BD Joined: Aug 2007 Posts: 25,601 Senior Member
1956BD

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Maybe these will help
04-22-2019, 09:33 PM
 #2

 tyrex Joined: Jul 2009 Posts: 1,118 Senior Member
tyrex

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04-23-2019, 01:46 AM
 #3

Tough one. How about baking, cooking, even just measuring how much drink powder to put in.

 TeacherPK6 Joined: Nov 2013 Posts: 3,101 Senior Member
TeacherPK6

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04-23-2019, 02:26 AM
 #4

I like tyrex's idea - if you needed to double a recipe whether that be for food or a drink!
If you want to buy two of the same thing at the store. Do you have enough money/how much will it cost?
Buying tickets to a show/concert/sports even for you and a friend?

 Linda/OH Joined: Aug 2007 Posts: 4,149 Senior Member
Linda/OH

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doubling
04-23-2019, 02:40 AM
 #5

Doubling is also a common strategy. Example: If you know 5 +5=10, then 5+6 is just one more. I was always taught in math class that our brains can learn and remember doubles easily.

There is a book too called Double the Ducks with a lesson plan to go with it.

 d_ee Joined: Jul 2008 Posts: 393 Senior Member
d_ee

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Nice visual (double vision ..Ha)
04-23-2019, 04:18 AM
 #6

 Haley23 Joined: Jul 2012 Posts: 6,458 Senior Member
Haley23

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04-23-2019, 05:22 PM
 #7

I knew someone on PT could help; thank you!

I used the doubling for a recipe and buying a ticket for you and a friend, and I talked about how it was another efficient strategy you could use when doing things like figuring out how much money you're spending when shopping or eating out.

Thankfully P came today, so at least I don't have to keep stressing about it all week. I honestly haven't had a P observe me in math in the past 6 years (previous P and AP who evaluated me last year just gave me the ratings I did for myself on my self-eval ) so I truly have no idea what she'll say. When she walked in, I hadn't picked up the students yet (group is after my lunch) and I said something like, "Just so you know, this group hasn't happened for quite awhile because of state testing." She said, "Oh that's fine, I really just need a glimpse." And then she proceeded to stay for the entire 30 minutes, which is as long as our formal observations! That might not be a good sign...

 1956BD Joined: Aug 2007 Posts: 25,601 Senior Member
1956BD

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Oh I bet she enjoyed your lesson
04-23-2019, 05:51 PM
 #8

and that is why she stayed a half hour. Wait to worry. Life is too short to start worrying before you know there is a problem.

 Haley23 Joined: Jul 2012 Posts: 6,458 Senior Member
Haley23

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Update
05-05-2019, 08:12 PM
 #9

Shortly after the lesson, P sent me my summative eval rubric with nothing marked for math and still a "1" for the math standards. I am proud of myself because I did NOT panic. I figured there had to be a technical glitch or something. If the lesson was so bad that she could not even mark "developing" standards, then she would come talk to me, right? About the help I clearly needed?

So I went into my summative meeting last week and she asked if there were any standards I wanted to talk about. I told her I needed more feedback on the math lesson as there was nothing marked and it just said "1" for everything. I was right; it just didn't save when she had clicked it. She told me she thought it was an excellent lesson and I ended up being rated "accomplished" for the math standards.

Thanks again for everyone's help!

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