Arrays and Addition Equations: Common Core Aligned and Certified (NOT!)

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14 pages
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There are few things in my life that I find more boring than the Common Core State Standards, better known by my the acronym of my own invention, “CoCoStaSta.” Well, I’m sure there is something more boring, like watching anything produced by Khan Academy, but I guess I’m setting a pretty low bar.

This is a lesson I wrote for a friend who needed a sure-shot way to impress the grand mystic imperial poo-bahs who rule the fiefdom known as his public school. I think it is such a good lesson that I’m publishing it here so you can see for yourself what a great CoCoStaSta lesson looks like. It may even impress your supervisors, and more than likely entertain and educate your students.

Comes complete with a full description of how to teach this lesson, including jokes and commentary.

Includes 4 different "egg-act array mysteries," where students read clues about an array and then solve the problem. There's also a blank "egg-act array mystery" for kids to write their own!
Total Pages
14 pages
Answer Key
Teaching Duration
45 minutes
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to see state-specific standards (only available in the US).
Use addition to find the total number of objects arranged in rectangular arrays with up to 5 rows and up to 5 columns; write an equation to express the total as a sum of equal addends.


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