This month, I’m sharing ideas for teaching with the Common Core mathematical practice standards. And, for my Texas readers, I will be correlating them to the mathematical process standards of the TEKS. The mathematical practice standards are included in each grade level’s Common Core State Standards. They include important processes, practices, and proficiences that are important for the development of every successful mathematician. These standards were derived from the work of The National Council of Teachers of Mathematics, NCTM, and The National Research Council.

For today’s Transformation Tuesday, I want to again focus on **Mathematical Practice Standard 6: Attend to Precision**. An excerpt for this standard, from http://www.corestandards.org/Math, is provided below.

#### CCSS.MATH.PRACTICE.MP6: Mathematically proficient students try to communicate precisely to others.

This standard correlates with Texas Mathematical Process Standard TEKS 1D which states, “**communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate.**” (**Source:** Texas Education Agency)

This standard not only encourages students to communicate with precision verbally but with accurate answers as well. The Teaching Channel video below shows a teacher emphasizing precision with her fifth grade students. Check it out!

Don’t see the video? Click here.

After watching the video, consider the following:

- How does the teacher emphasize both precise language and precise cancellations?
- What strategies does the teacher use to help her students attend to precision?
- What does the teacher mean when she says the “content is a vehicle for the practice standard”?

Precision is important, especially in mathematics. I love how the teacher taught her students the term ‘precision’ and then helped them understand what the term meant. As the student in the video said, one small mistake can make your answer incorrect. It’s important that our students understand how to be precise with their language and their answers.

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