At the SVMI institute, Sally Keyes led a workshop on the use of **Math talks in the classroom**. Some purposes of math talks are to present multiple ways of solving mathematical problems and to develop students' ability to discuss mathematics. This helps students learn other strategies they can use, look for patterns between the different strategies, and learn how to communicate mathematics with each other.

**This video** briefly describes how number talks can work, and how they can be implemented in a mathematics classroom.

Here are some examples of different types of objects that could be used to frame math talks.

- Dot patterns

A dot pattern is a visual array of dots, flashed up long enough so that students can see it, but not long enough that they can count it directly. One way to use these patterns is to ask students to come up with how many dots they think they saw, and why they think they saw that many dots. One advantage of dot patterns is that the threshold for the ability for your students to participate is low, and so everyone can more easily see how many different representations are possible.

- Two dimensional patterns

With two dimensional pictures, one objective for students could be to try and reconstruct the picture that is flashed in front of them. Students should try and describe the object using vocabulary they know, and that is as precise as possible to describe the shapes they saw.

- Three dimensional patterns

You can also use three dimensional diagrams in much the same way that you use two dimensional diagrams for math talks. This particular diagram is created in Minecraft, but it is reasonably easy to create a similar diagram using isometric paper.

- Arithmetic problems

Many arithmetic problems would be appropriate for math talks. As a teacher, you might want to select the arithmetic problems based on previous math talks your students have done, so that you have the potential for patterns toi emerge with a series of math talks around arithmetic. Conceptual understanding of a variety of different strategies for solving arithmetic problems will likely help your students develop much needed numeracy skills. Note that it is best to choose problems which can be done mentally by most of your students, so that they have a need to use non-standard algorithms to calculate the arithmetic.

- What's my rule?

Function machines are also possible, and depending on the function and your goals for the math talk, you can use a variety of different representations in order to display the relationship between the input and output of the function, including, for example, a table of values or a graph. As with all of the math talks, the objective is for students to talk about what evidence convinced them that they knew the function rule, and how they could check that their rule matches the given information.

**Some other resources for math talks:**

Newsletter:

David is a Formative Assessment Specialist for Mathematics at **New Visions for Public Schools** in NYC. He has been teaching since 2002, and has worked in Brooklyn, London, Bangkok, and Vancouver before moving back to the United States. He has his **Masters degree in Educational Technology from UBC**, and is the **co-author of a mathematics textbook**. He has been published in **ISTE's Leading and Learning**, **Educational Technology Solutions**, **The Software Developers Journal**, **The Bangkok Post** and **Edutopia**. He blogs with the **Cooperative Catalyst**, and is the **Assessment group facilitator for Edutopia**. He has also helped organize the first **Edcamp in Canada**, and **TEDxKIDS@BC**.

- Creating a WiiMote interactive white board at my school for under $50.
- 20 reasons not to use a one to one laptop program in your school (and some solutions)
- What is Edcamp?
- For whom are Interactive White boards Interactive?
- Forget the future: Here's the textbook I want now
- Mathematics education blogs
- There are no aha moments
- Why educators should blog: A helpful flowchart
- Eight Videos to Help Teachers Get Started Using Twitter
- 15 things kids can do instead of homework
- Paper use in schools
- Online Geogebra training
- The difference between instrumental and relational understanding
- What is The Effect of Technology Training for Teachers on Student Achievement?
- Using Google forms for a "Choose your own adventure" style story
- Why teach math?
- Ways to use technology in math class
- A Fundamental Flaw in Math Education
- A Restitution Guide to Classroom Management
- 25 Myths About Homework
- I don't know how to use a fax machine
- Migrating away from Google Reader
- The Role of Immediacy of Feedback in Student Learning
- Free tools for math education
- Reflection of our course discussion about the use of technology in the classroom

**Subscribe** to my blog

Theme by Danetsoft and Danang Probo Sayekti inspired by Maksimer

## Add new comment