Video Playlist: Argumentation in Mathematics

Mathematical Argumentation - Watch the video series

When you hear the word argument, you might think of a heated dispute or a clashing of opposing sides. In the mathematics classroom, however, the practice of argumentation involves making claims, supporting them with evidence, evaluating the reasoning of others, and making sense of mathematical ideas. This mathematical practice is identified by the Common Core Standards as central to the work of K-12 mathematics. It’s the practice through which a mathematical community determines what will be accepted as true.

While students in the upper grades may engage in more formal argumentation and deductive proof, young children can and do engage in supporting their reasoning with evidence, making sense of the arguments of their peers, and making conjectures about mathematical relationships. For example, students might argue that 5+3 is the same thing as 3+5 by modeling both expressions using unifix cubes.

Or students might move toward making more general statements about how and under what conditions a mathematical relationship is true. For young students, this might sound like, “It doesn’t matter what order you add the numbers in, you will always get the same amount.” This is related to, and perhaps builds on the claim above, but implies this relationship will be true for any number.

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Tch DIY: Learning Together Through Math Routines

Math Routines with Kristin Gray

I couldn’t be more excited about the launch of this Teaching Channel project — it’s so near and dear to my heart. Over the past five years, much of my work in the classroom and with teachers has centered around math routines that generate student discourse and help us learn more about our students’ understandings. All of this work has been inspired by books I’ve read, conversations with colleagues in person and on Twitter, and the amazing student mathematical discussions I’ve heard, sparked by these routines. With this project, I have the opportunity to share all of the hard work of my colleagues, showcase the safe culture they have established in their classrooms, and highlight all of the wonderful mathematical ideas of their students.

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Lesson Study: The Math and the Lesson Plan

Getting Better Together

This entry is the second post in the series Getting Better Together: A Lesson Study

In my first Lesson Study post, I discussed choosing a mathematical goal and task. In ending the post, I invited you to take some individual think time to work out the four questions posed. This was your time to think about how you would plan the lesson for your class, what sequence you would use, and what questions you would ask. You were also tasked with choosing a warmup to engage your class and a formative assessment strategy. Now it’s time to think about the math and the lesson plan.

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Lesson Study: Choosing a Mathematical Goal and Task

Getting Better Together

This entry is the first post in the series Getting Better Together: A Lesson Study

Don’t you just love those days when a math lesson goes really well? A lesson where, at any given moment, you could look around and see students engaging in a task, persevering through problems, talking with one another about the mathematics, making connections, and in the end, be able to demonstrate understanding of the mathematical goal for the day? While it’s an amazing experience we probably wish we could have every day, there’s also much to be learned when a lesson doesn’t go quite as well.

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Tch Tips: Helping Students Make Meaning In Math Class

Tch Tips

In math class, we often see students pull numbers out of math problems and operate on them without thinking about the context. Many students arrive at an answer, but don’t realize their answer doesn’t make sense within the context of the problem.

When this happens, we’re left wondering many things that are extremely important in our future planning:

  • Are they struggling with the math?
  • Are they struggling with comprehension of the text?
  • Are they making sense of the problem as mentioned in SMP1?

After reading Brian Bushart’s blog post, I’ve found that taking the numbers and questions out of the problem itself engages students in making sense of contexts. Students are then able to notice and wonder about the context without the worry of having to solve for something.

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Illustrative Mathematics: We Want To Collaborate With YOU !

We’ve found collaboration with one another to be an invaluable component of our professional learning. In every conversation we have around the math, the lesson, and student work, we learn so much. Since we know it’s not always easy to find the time to meet, especially living on opposite coasts, we’ve found ways to be creative in our scheduling, planning, tools, and technology to make it happen.

We were fortunate to begin our journey together over two years ago when we worked on a project supported by Illustrative Mathematics, Smarter Balanced Assessment Consortia, and Teaching Channel. The project connected educators from around the country in a planning, teaching, and reflection cycle unlike anything we had ever experienced. Recently, NCTM’s publication Teaching Children Mathematics, published an article on this work and hosted a Twitter chat that generated an energetic conversation about collaboration that sparked a new idea for us to try.

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Summer Math Reading: Five Days of Favorites

At the end of the school year, I always find myself in such a weird space. I’m exhausted, need a breather, and know I should take some time to get off the runaway train that is teaching.

PinterestHowever, that need to disconnect, decompress, and check out of education thinking for a bit is quickly followed with the excitement of finally having time to catch up on all the great educational reads I can’t seem to get through during the school year. As I start to make my list — and question whether I’m a workaholic unable to disconnect from teaching — I find so many teachers and coaches on Twitter asking for book recommendations. Whether it be recommendations for the following school year’s professional learning or simply for personal learning, I’m relieved to see I’m not alone!

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Tackling Misconceptions: Small-Group Number Talks

Getting Better Together

A day in my classroom is filled with inquiry, deep questioning, hands-on learning, and student-driven discussions. Yet, for all aspects of my teaching that I’m proud of, I’m also continuously reflecting on my instructional practices that need improvement.

This past year, I’ve lived the mission of Getting Better Together by sharing my experiences with others and allowing their advice/feedback to guide my instruction. From engagement in book studies, to Twitter chats, to receiving video feedback, I’ve been amazed at the growth of my online professional learning community and consequently, my growth as an educator.

My growth continues, alongside you, the Teaching Channel community, in three new videos. You’ll see me try out instructional strategies that are aimed at reaching all learners and differentiating the learning experience in the classroom. And you’ll also see me work to elevate every student’s voice through designed tasks and groupings. (Read my accompanying blog post, Three Ways I’ve Become A Better Listener.)

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Three Ways I’ve Become A Better Listener

Getting Better Together

“When you talk, you are only repeating what you already know; but when you listen, you may learn something new.” Dalai Lama

What does it really take to be a good listener? My entire life I’ve struggled to answer this question.

In elementary, middle, and high school I won either “most talkative” or “most social.” I loved public presentations so much that I got a degree in broadcasting and intended to spend my life narrating stories from the field. After a career transition to teaching, I quite enjoyed the feeling of being on stage. I created and sang songs, gave incredibly entertaining lectures, and presented ideas in a logical fashion to my students.

About four years ago, I began reading about focusing on student voice within the classroom and elevating this as the predominant voice. As I began to think about how my classroom could transition to meet this focus, I had to let go of part of my practice. Not only did I enjoy the presentations, but they defined my teaching style. (My Nicki Manaj integer song was a classroom stopper!) Yet, as I gained more experience and redefined my role as an educator, I realized I needed to elevate student voice and minimize my own.

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