Reflection: Grappling with Complexity Relative Size - Section 2: Determining Relative Size

 

The Common Core standards suggest that students should be able to persevere in solving difficult problems (MP1). Figuring out relative size was not an easy task. Students had to really think about what we were trying to do. Next they had to find a way to find half of the normal size. Precision was important for this if we were to end up with a poster that was close to correct (MP6) Finally they could add those blocks to get the total length. 

It took perseverance to keep on the task, decide what half of the size would be and then measure the size the animal onto the paper and try to make it that size.

The amazing thing about the project was the students' willingness to keep up with the project. They didn't give up, or quit or try to get someone else to just give them the answer. Students were excited about making the poster and seeing how much bigger or smaller their animal was than someone else's.

Using a meaningful task keeps students engaged as they face difficult tasks.

  Motivation for Working Hard
  Grappling with Complexity: Motivation for Working Hard
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Relative Size

Unit 18: Strategies That Work
Lesson 11 of 16

Objective: SWBAT use repeated addition or repeated subtraction to find the relative sizes of sea creatures.

Big Idea: How big is a lobster compared to a clam? Can we use relative size to find out?

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Subject(s):
Math, Measurement, Number Sense and Operations, Operations , relative size, review, estimation
  60 minutes
100 1414
 
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