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CCSS Math, Gr.6 Domain 1 / Cluster 1

A quick overview of the first math domain and first cluster found in Grade 6 Common Core State Standards. It contains a mere 3 standards based on the domain of Ratios and Proportional Relationships...so as you would guess, it has a lot of lead in points to Algebraic concepts and is therefore a critical domain to cover with students.

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Model Question - Kanye West Album Sales

The following question is a standards-aligned model question from New York for Gr. 6 Domain 1 / Cluster 1.

Students answering parts a-c of this question will utilize many elements of standards 1-3 that make up the cluster: Understand ratio concepts and use ratio reasoning to solve problems.

**Challenge 1: Aside from noodling through parts a & b of this question. Take a moment and type up your own approach to solving part c and identify what you'd expect a student to "show" in order to demonstrate they not only solved part c, but understood a viable approach to its solution. (when you've finished, go to the next activity to compare your notes on this problem versus that of a proficient student's)**

Source: New York Department of Education

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Model Question - Tree Trunk Problem

Ahhh, the classic tree trunk problem as adored by Forestry Science Majors, Arborists, and Middle School Math teachers alike. This is a model question taken from the California High School Exit Exam as related to CCSS Math, Gr.6 Domain 1 / Cluster 1.

*Consider which of the three standards for Cluster 1 are tied to the skills students would need to solve this problem.

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Teacher's Choice

Let's assume you would like to make an instructional video available to your students the night before covering these standards and specifically the concepts of **Rate and Common Ratios**.

Of the following two video tutorials below, which do you think would be most effective for your students and why?

1. http://www.youtube.com/watch?v=yztq_ELjfSw

2. http://www.youtube.com/watch?v=UxWsY59NVgc