# First Grade Math Warm-Ups: Week of March 9-13, 2015

Sorry, I’m a few days (ok, weeks!) late with these warm-ups.  Spring Break happened and I had forgotten to snap pictures of them before I left for my vacation.  Oops.  But alas, they were still there when I got back today, and so here they are for you.  And man, are they worth the wait. Hee hee. 🙂

Monday

This week was the last week before the end of our quarter, and so we were wrapping up our work with addition and subtraction.  There were a couple of things that I wanted to highlight with our problems–the connections between adding and subtracting strategies, and using mental math for quick facts up to 20.  This one again helped lead them to see how what they know about addition can help them with efficient subtraction. More about all of those strategies listed there later…

Tuesday

Yeah, somehow I didn’t get that “y” on the end of strategy in the picture (I promise I wrote it there correctly!)…again, more on that practice we did later…it involves some pretty great explanation videos.  Worth the wait (but isn’t everything I write on this blog?! Kidding, just kidding!).

Wednesday

Again, with our focus on strategies, I wanted to point out that good mathematicians know when to use a strategy as well as why to use it in that situation.  This one didn’t really have a “right” answer (many strategies make sense with these numbers), but it was important for kiddos to explain their reasoning for which strategy they chose to use.

Thursday

Wanted to get a quick temperature read on kiddos and their ability to do these facts quickly.  Most could do them quick and painlessly, using what they know about other problems to help (like tens and doubles), which is exactly what I was looking for!

Friday

This last warm-up before the end of our quarter (and what I considered a well-deserved break for everyone!) gave a sneak peek to next quarter’s work with graphs, charts and measurement.  Needless to say, since it was a preview, not many kiddos knew what to say to this one…

You know, seeing all of these charts reminds me of the suggestion I got from a reader once about using Padlet to do this electronically.  Does anybody have any personal experience they can share?  I’d love to hear about how it’s working (or I guess not working would be helpful, too!) for you.  Appreciate the help and advice, friends! 🙂