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Math Content Strand

Growth Rate

Just what are those strange, colorful objects hanging from the ceiling? And, what's this? They're growing! Remember the use of manipulatives, interaction with students to draw them to focus on the learning, and any process that gets them to consider the application of the skills in a semi-guided method always increases proficiency among your more challenged students.

Photo: classroom Photo: Ms. Barney teaching







Video Case Study Activity

Check out the following video clip on Ms. Barney introducing Growth Rate.

Video Case Study Activity Approaches to Proportional Reasoning: Growth Rate (3:58 minutes:seconds)
Helen Barney: Barney 02


Assessment Activity

Assessment 2: Growth Rate

Question:

The unit rate is five seconds per link.  How many links are there to a similarly grown connect toy that is 2 minutes 10 seconds old?

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