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Standards Q&A

Q&A: Behind the Math Standards

By Liana Loewus — November 10, 2014 8 min read
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William G. McCallum accepted an offer about five years ago to lead a team in developing the Common Core State Standards for mathematics. The Sydney, Australia-born mathematics professor, who has worked at the University of Arizona in Tucson since 1987, chaired the 51-person work group, which included researchers, mathematicians, state education department representatives, and teachers. Along with Phil Daro, a senior fellow at America’s Choice, a school-improvement program owned by Pearson Inc., and Jason Zimba, a math and physics professor who later co-founded the nonprofit Student Achievement Partners, Mr. McCallum then served as a lead writer of the college- and career-ready standards, which the majority of states are now implementing.

In an interview with Education Week, Mr. McCallum, who is currently collecting activities and diagrams for each of the standards through a project called Illustrative Mathematics, discussed the thinking behind various components of the math standards, and addressed some criticisms of the framework. (The interview has been edited for length and clarity.)

You started the process of developing standards by writing “progressions documents,” which describe the order in which particular topics should be taught. From there, you broke the progressions into grade-level standards. But you and many others say the progressions documents are key to understanding the standards. Why and how should teachers be using them?

We wanted the standards to be coherent across grade levels. We wanted them to tell a story that made sense about mathematics and we thought that was a good design to start out.

William G. McCallum, a lead writer of the common core for math, says the biggest change the standards pose for educators is the increased focus on fewer topics.

The progressions documents tell the story of how the mathematics in a particular domain, let’s say the fractions domain, progress. You can detect that from reading the standards—for fractions, for example, you can look at the grade 3 standards, you can look at the grade 4 standards, and you can see how they fit together. But the progressions documents have examples, and they have more narrative explanation. So those are useful documents if you want to understand this idea that the mathematics does progress, and that what you’re teaching in grade 3 you’re teaching for a reason so that kids going into grade 4 will be able to do what they’re supposed to do there.

Unlike most state standards, the math common core includes, in addition to content standards, eight Standards for Mathematical Practice. What exactly are those and why did you all decide to include them?

They’re various mathematical habits of mind that we wanted to codify. They’re an evolution of the National Council of Teachers of Mathematics’ process standards and a National Research Council document called “Adding It Up” that talks about the strands of mathematical proficiency.

There have always been attempts to describe not only the knowledge and skills that kids have to have, but how they approach doing the mathematics—do they have persistence and perseverance solving problems? Do they use language precisely? It wasn’t an entirely new idea to try and describe what mathematical practices look like, but it was new to make that part of the standards.

So will students be assessed on these? How will that work?

I know both assessment consortia are trying to figure out how to do that, but of course it’s limited to what you can do with a large-scale computer-administered assessment.

But I also think assessment of the Standards for Mathematical Practice will happen in the classroom. Not all assessment is about the tests that kids take at the end of the year. Teachers observe students, they can give performance tasks, they can see how they do. It might be more in the form of formative assessment than summative assessment, but that’s an important location for assessment of the practice standards.

In your view, what’s the biggest misconception people have about the math standards?

I think probably the biggest one is they think standards are the same thing as curriculum. When their kids bring home a homework problem that’s a quote “common-core problem"—it isn’t. It’s a homework problem from a curriculum, and the curriculum may or may not be aligned to the common core. But the common core never said the kid had to do that problem. But I think people don’t see that.

Standards are just expectations for what we want students to know and understand and be able to do by the end of the year or a particular course. Curriculum is how you get them there. There can be good or bad curriculum implementations for the same standards.

What do you think is the biggest specific change in the standards, as compared with most previous state standards, for math teachers?

I’d say the level of focus is probably the biggest change. Every teacher is used to teaching a certain amount of stuff in their grade level, and the common standards basically rearrange the material so that at any given grade level, you’re focused on a smaller set of things.

So for every teacher that used to teach topic X, and it’s no longer there, they have to make that adjustment. And I think there’s a temptation probably to say, “I’ll just do it anyway even though it’s not in the curriculum anymore.”

Which of the new standards would you say teachers have found most challenging to implement?

Different things for different grade levels. I think the fraction standards are challenging for grades 3 through 5 teachers. I think the thinking about the Standards for Mathematical Practice is hard.

If you put the question a little bit differently, which is, “Where do I start,” I tell everyone don’t try do everything at once; pick your battles. If you’re a school district deciding what professional development to give to elementary teachers, I’d say fractions. In middle school, I would say ratios and proportional relationships and how they’re different in the common core.

Are there any changes you wish you could make to the standards?

I have a bunch of tweaks. But I’d advocate stability for a while. Not that the standards are perfect by any means, but my changes might not be the right ones.

That said what kind of changes would you hope to see in the future?

I think the geometry progression could be evened out a bit in elementary school. I think in high school there could be more focus. High school was difficult because everybody has their pet topic, and it was difficult to resist those pressures.

Barbara Oakley, an engineering professor at Oakland University in Rochester, Mich., recently wrote in The Wall Street Journal that math teachers are focusing too much on students’ conceptual understanding in math, which is a key tenet of the common standards. The key to expertise in math, she said, is not conceptual understanding but practice. What’s your response to that?

I think she’s completely right that people are overemphasizing conceptual understanding. But the common core balances conceptual understanding and procedural fluency.

What’s interesting to me is that both the supporters and the critics of the common core, I think, are overemphasizing conceptual understanding—and understandably because everybody’s always demanded procedural fluency, and the conceptual understanding is what’s new. But that doesn’t make the other requirement go away.

In some sense, previous waves of reform have swung back and forth between one or the other, but the common core strikes a balance.

What’s your response to the criticism that the math standards don’t go far enough? That they don’t prepare students who want to pursue a career in math?

That’s a complete red herring. Standards never did that. It’s always been true that if you wanted a career in math and science, you take more math than kids who don’t. It’s always been true that the standards for college acceptance for a general wide variety of majors is Algebra 2, and it’s always been true that if you want go into a STEM career or math major or physics major, you take calculus in addition. Or if you want to get into Harvard or Stanford, you take calculus.

There’s nothing new there. The standards don’t describe calculus because there’s already a national standard for that, which is the AP [Advanced Placement] curricula.

Fundamentally, this is a confusion between college readiness and STEM readiness. Some people want to define college readiness to be the same as STEM readiness. That’s fine if that’s their opinion, but it’s not traditionally the definition that most people have used. And it’s not the one that we use. We use the definition of college readiness as ready for credit-bearing courses in college.

How do you hope teachers and schools will use the “plus” standards in the high school sections, which introduce advanced material?

There were places where we wanted to have the plus standards around for the sake of coherence. You don’t want to just teach a bit of trigonometry without teaching the rest. We made decisions about what should be required for college readiness, but that’s not quite the same thing as what makes a coherent course in high school. So I hope that educators will use the plus standards in places where they see that they fit successfully into the coherent structure of a course.

In the intro to the high school standards, it says you can put plus standards in courses that are required for all students. But the college- and career-ready assessments might not assess those standards.

We were supposed to come up with some threshold beyond which you’re college and career ready. If you’re going to describe a threshold, you need to describe what’s on the other side of it. The plus standards help delineate that threshold.

What would you say is the biggest promise of the common standards for math teachers and their students?

Just having focused and coherent standards helps teachers. If you have standards that are focused, that means you have more time to cover each topic at each grade level, you have more time to make sure kids really learn it.

If the standards are coherent, you can understand the purpose of what you’re doing because you know where it goes in the next grade level, and you know where your kids came from. So focus and coherence help teachers as well as students.

But I also think, if you have standards between different states, and one state develops a really cool resource, it’s no longer a local innovation—it’s a national innovation. That resource is available to any teacher who is teaching based on the same standards. That’s useful. That means if you go online and you’re looking for resources, you’ll find things that are exactly what you’re looking for.

Coverage of efforts to implement college- and career-ready standards for all students is supported in part by a grant from the Bill & Melinda Gates Foundation, at www.gatesfoundation.org. Education Week retains sole editorial control over the content of this coverage.
A version of this article appeared in the November 12, 2014 edition of Education Week as Behind the Math Standards

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