Showing posts with label Standards for Mathematical Practice. Show all posts
Showing posts with label Standards for Mathematical Practice. Show all posts

10.08.2013

Standard for Mathematical Practice #1: Make Sense of Problems and Persevere in Solving Them.


Both my grandmother and my mother are excellent cooks. My grandmother is a classic 1950s chef--she has a huge repertoire that includes foods like meatloaf, chocolate cake, and apple sauce--all from scratch. My mother is a classic New York Italian cook. Just thinking of her stuffed shells or artichokes makes me salivate--I'm literally doing it now as I type.

The most interesting (and key) difference between my grandmother and my mother is not their cuisine, but rater the way that they cook. While my grandmother lives and dies by her recipes, my mother cooks by feel and taste. My grandmother has all her recipes written out and she follows them step by step, ever faithful, never deviating. My mother doesn't have anything written down, and if you ask her how to cook her artichokes, it's not guaranteed that you'll end up with the same results, because she tweaks and adjusts as she goes. This is why replicating the tender leaves that melt like butter in your mouth is only possible if you've cooked them right alongside her, to learn by doing with her.

Both my grandmother and my mother are good cooks, and can perform. But the key difference in the way that they cook is that my mother is much more adaptable. She can change course mid-meal to bring the sauce back to the way she wants it to be. My grandmother, on the other hand, must rely on a specific set of instructions, and if things go awry, she either needs to scrap it all together and start over, or live with a sub-par outcome.

I share this story of two cooks because it has real relevance to math education. Many of us were taught that math is a set of rules and steps. If we just follow the steps and rules, we're guaranteed to get the Right Answer™. However, as I discussed yesterday, there has been a movement in math education to give kids an opportunity to engage with mathematics, not just memorize its rules and properties. The way that we have been taught is much like my grandmother's cooking: follow the recipe and don't deviate. The way that math is being taught now is akin to my mother's cooking--learn the way that cooking works, and you'll understand why you should lower your burner if your meatballs are burning on the outside and still raw on the inside.

From the outside, this way of teaching math often seems needlessly foolish and complicated. It seems to take longer and be more confusing. But often those criticisms come from folks who have already decided in their minds that, as a matter of principle, math is confusing. I can tell you from being in a classroom, that if you don't have that already decided, engaging with math can be a fun exploration ... an adventure!

Standard for Mathematical Practice #1 gets to the heart of this issue. The standard states that students who are proficient with mathematics will make sense of problems and persevere in solving them. The full description is below.

Mathematically proficient students start by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals. They make conjectures about the form and meaning of the solution and plan a solution pathway rather than simply jumping into a solution attempt. They consider analogous problems, and try special cases and simpler forms of the original problem in order to gain insight into its solution. They monitor and evaluate their progress and change course if necessary. Older students might, depending on the context of the problem, transform algebraic expressions or change the viewing window on their graphing calculator to get the information they need. Mathematically proficient students can explain correspondences between equations, verbal descriptions, tables, and graphs or draw diagrams of important features and relationships, graph data, and search for regularity or trends. Younger students might rely on using concrete objects or pictures to help conceptualize and solve a problem. Mathematically proficient students check their answers to problems using a different method, and they continually ask themselves, “Does this make sense?” They can understand the approaches of others to solving complex problems and identify correspondences between different approaches.
This standard describes a student who is proficient with mathematics--it is a goal for students to grow into as they develop and learn. So if your 3rd grader isn't exhibiting ALL these traits, take a deep breath, let the stress melt from your shoulders, and then let the breath out. It's ok.

Let's think a little about the task I posted on Friday. (For a refresher, check out Sunday's debrief.) It was meant to address a 3rd grade content standard. And within that task, I can see a number of elements from the above paragraph:
  • looking for an entry point (a student would need to figure out how to divide 18 by 3, in both contexts)
  • analyze givens (the two contexts), analyze relationships (the questions in the task that ask them about similarities and differences)
  • younger students might rely on concrete objects (the multi-link cubes!) to help conceptualize and solve a problem
Well look at that! We found three ways in which Friday's task would help a student to engage with math in such a way that they are exhibiting elements of SMP #1! Here's a little secret for you: that math task was written with SMP #1 in mind, meaning that this is a grade-level appropriate way for a 3rd grader to be engaging with math in a more analytic, proficient way.

Did you notice that with that task, we weren't asking a student to just memorize division facts? Rather, we were asking the student to play with division, see it in different contexts, make observations, and learn by doing. I don't know about you, but this is definitely a shift from the way I learned division. But I see, regularly in the classroom, how powerful that shift can be.

Suggestion: Take a look at some of the math work your child is doing. Do you see evidence of SMP #1? It doesn't need to be embedded in every single thing they do ... but it does need to be present. Feel free to share back ways that you see SMP #1 playing out in your kiddo's math learning.



Are you enjoying learning about CCSSM? There are more 31 days posts here. And you can join us on facebook and twitter, for conversations between blog posts, and after October! This week's Tuesday night math chat will be on Twitter, at 9p ET--follow along using #CCSSM!

10.07.2013

Standards for Mathematical Practice: The Organization of the CCSSM Part III


This is the third post about the organization of the Common Core State Standards for Mathematics (CCSSM).

You might have noticed that when you pull up the CCSSM, the first set of standards (especially if you view the entire document as a pdf instead of on an interactive site) are the "Standards for Mathematical Practice."

The standards we've looked at up to this point have described specific content. (For example, 7.EE.A.2 Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related.) The Standards for Mathematical Practice, however, do not describe specific mathematical content.  
Rather, these standards describe the way in which students should be practitioners of math. They describe what good math looks and feels like. 
I am fond of pointing out that while these standards describe student behaviors and understandings (because, as we talked about on Day 1, that is the very definition of what learning standards are), these descriptions of "mathematical practice" are true to anyone who really knows their way around math.

So if you lifted these eight descriptions of good math practice out of the standards document, you could also use them to describe how scientists, engineers, accountants, small business owners, CFOs, and ... well, you or I ... do math. Really, anyone who has become competent and fluent with math will be engaging in these practices.

It's worth focusing on the word "practice." The way that this term is used here is not unique to math learning standards. I think specifically of yoga. I'm a fan of yoga, and whether you're in a yoga studio or at home with a borrowed dvd from your library (I fall into the latter category, FYI), your yoga instructor is going to mention your yoga practice. This word means much more than just the repetition of yoga poses. It means everything about the way I engage with yoga ... from my mindset to my breathing to my balance to my physical ability to get into a yoga pose ... all of these things say much about my fluency and knowledge and familiarity with yoga. A yoga instructor, as a very proficient practitioner of yoga, can watch me move through a sequence of poses, and then tell you a lot about my yoga practice--whether I'm breathing right, and isolating the right muscles ... whether I'm focused and meditative as I should be, or distracted and tense.

The same is true with mathematics. The authors of the CCSSM want students to learn math in such a way that they own it for themselves--that their familiarity with it allows them to be the master--to bend the math to their will instead of being a slave to a seemingly incomprehensible and arbitrary set of steps and rules.

This kind of fluency doesn't happen overnight. (Just as I can't expect to go to two yoga classes and be able to do a kickass tree pose.) And it also doesn't look the same at every grade level. What specific actions demonstrate a fluent practitioner in 1st grade might signal a student who is struggling to keep up in 4th grade.

However, there are over-arching ideas that are consistent across grades, even if they are expressed differently at different stages of mathematical development and understanding. Precision (the focus of Practice Standard #6) in primary grades might be as simple as making a clear "T" chart ... whereas in high school, it would be more like writing out clear "let statements" so that it's easy to know what different variables are being used for in a set of equations.

The practice standards are special because of their organizational spot in the CCSSM. In former standards documents (the state standards, or the National Council of Teachers of Mathematics standards document), this type of "process standard" or "logic and reasoning standard" was given it's own domain area. Instead of putting these standards into a domain where it could be said, "Now, we're going to focus on reasoning," the authors of the CCSSM decided to make these standards overarching. The idea is that no matter what content you're teaching in the CCSSM, it should be taught in such a way that the Standards for Mathematical Practice are being encouraged, nurtured, and leveraged.

This is just as it is in my yoga class. No matter what pose I'm in, my breathing is something that needs to be attended to. ( ... as does my mental focus, my balance, and a host of other marks of good yoga practice that I have yet to learn and incorporate :) )

The eight Standards for Mathematical Practice are:
#1. Make sense of problems and persevere in solving them.
#2. Reason abstractly and quantitatively.
#3. Construct viable arguments and critique the reasoning of others.
#4. Model with mathematics.
#5. Use appropriate tools strategically.
#6. Attend to precision.
#7. Look for and make use of structure.
#8. Look for and express regularity in repeated reasoning.      
And while there is certainly overlap between them, Bill McCallum, one of the authors of the CCSSM, put together the following diagram to help us think about how they might be grouped in pairs, with #1 and #6 as overarching, being used when you use the others.


Throughout the rest of our 31 days together, I'm going to try my best to delve deeper into what each of the eight Standards for Mathematical Practice says and means. This is, by far, the most challenging part of the Common Core ... but it's also the meat of the CCSSM, and in my humble opinion, the major contribution of the CCSSM.

I'll put it to you this way: when the CCSSM first came out, and state and district math supervisors weren't sure where to start to move towards implementation of the CCSSM, the recommendation from the major professional organizations for teaching math (the National Council of Teachers of Mathematics and the National Council of Supervisors of Mathematics) told math leaders in those districts:
"Start with the math practices. If you can be teaching in a way that reflects the practices, the content will be close behind."


Are you enjoying learning about CCSSM? There are more 31 days posts here. And you can join us on facebook and twitter, for conversations between blog posts, and after October! This week's Tuesday night math chat will be on Twitter, at 9p ET--follow along using #CCSSM!

4.02.2013

Common Core and struggling ELA students.


  1. #CCSSMparents @CCSSMParents something I learned at my mtg tonight: the ccssm requires a higher language level. Kids who used to excel at +
  2. #CCSSMparents @CCSSMParents math but perhaps had weaker language skills will now struggle in math, as they must now explain their answer
  3. .@herdofhills Yes--this is true, and this actually ties into what we talked about last night, since it ties in with SMP 3 & 6+ #CCSSMparents
  4. #3 is "Construct viable arguments and critique the reasoning of others" #6 is "Attend to precision." SMP3 is+ #CCSMparents @herdofhills
  5. all about building the mathematical argument. This logical progression will need to be able to be communicated+ #CCSSMparents @herdofhills
  6. to others (teachers, peers). However, I would say that you might also see a kid who formerly struggled with ELA+ #CCSSMparents @herdofhills
  7. find his/her niche in being able to explain math in a way they may not be able to explain prose. I do think+ #CCSSMparents @herdofhills
  8. for many kids who struggle with ELA, this could perpetuate that. But we may also see the reverse. #CCSSMparents @herdofhills
  9. I actually see something similar in my work with teacher PD. Many teachers come to us strong in ELA, lacking in+ #CCSSMparents @herdofhills
  10. math. But a savvy instructor is able to leverage that ELA strength to help teachers find an inroad to math. #CCSSMparents @herdofhills