Shelly Moses: The Mean Evil Step-Teacher
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Common Core is not Totally New

10/22/2013

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I am lucky that I work in a school where I am afforded ample opportunities to attend high quality professional development conferences, trainings, or seminars every year.  In regards to math, Marilyn Burns has to be my favorite rock star.  If I had my choice to spend an afternoon with her or Alan Jackson, I'd have to go with Marilyn.  I saw her for the first time when I weaseled my way into a math conference as a student teacher and every time I have seen her since has been just as fun and inspiring as the first time.  (Now I won't say how long ago it was that I first saw her, or how many times, that would just make both of us look old.)  But it was Marilyn Burns who taught me that you have to delve into the thought processes of a student if you truly want to learn how well they understand something.  I loved the idea of writing about math, you always need good topics for writing and math is an excellent one.  This idea also fits in beautifully with my mean, evil, step-teacher persona.  "What? the kids asked, "You mean we have to write during math?  You really ARE evil!"  Bwaaa ha ha! Oh yes...I am!  

So, my students write about math constantly.  Not only do they do it for assessments, they do it for problem solving.  When we problem solve in math class, true problem solving, I don't check work or answers.  Students have to work like real mathematicians, solving the problem in multiple different ways, and checking their results.  They then have "math conferences" where they circulate the room and compare strategies and results with their fellow mathematicians.  They then have to make connections, just like we do in reading; problem to self, problem to problem, problem to world.  Sometimes we even do First, Next, Then, Last books about the problem solving process.  Sequencing doesn't only happen in language arts folks.  This is how scientists and mathematicians do it, so this is how we do it!

Now, if you look at the few samples I have below you can clearly see the differences in understanding, even among the three who got the correct answer.  With information like this I have a spot-on accurate assessment of their abilities.  I will also know when someone gets an answer right on accident.  I had a student explain that 4/5 was more than 3/4 because 4+5 was more than 3+4.  Without that explanation this answer would have been counter productive for me as the teacher.  I've also had students blow me away by creating algorithms that they had never been taught.  One student, with a similar problem to the one below explained the 2-7 section of the problem as being a -5, which he subtracted from what he got in the rest of the algorithm.  Holy cow!  Now that's a kid with some number sense.

So if these kids now take a common core assessment, what is new for them?  Certainly not explaining their thinking or providing evidence.  This process of explaining your computation and reasoning is old hat for them.  So I say to Common Core, bring it!  My students first graders will be ready.
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1. These kids have a beginning idea about what they are doing here, and they can't explain their thinking. Red flag! But they are good friends!
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3. She not only knows what she is doing with the algorithm, but she gets what each of these numbers mean.
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We're just having him write the teacher manual.
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2. She is getting the idea but making some classic mistakes. Now I know exactly where her misconceptions are.
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4. This one not only gets everything, but has an amazingly articulate explanation of her thought processes.
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This is a sample problem solving page from the very beginning of the year. I just start off evil. It's easier for everyone that way.
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