Grandmas and Algebra!

We recently read an excellent book called "The Doorbell Rang" by Pat Hutchins and used it to show off our division and algebra skills.

In the book, a mother makes cookies for her two children and tells them to share.

Then, more and more friends arrive at the house and the number of cookies each child receives gets smaller and smaller.

The cookies look and smell delicious, but on each page we read that "no one makes cookies like Grandma!"

At the end of the story, Grandma arrives with more cookies for everyone!

First, we wrote the mutliplication and division fact families represented by the situation in the book.

Then, we wrote an equation that represented the relationship between the number of cookies, the number of children, and the number of cookies each child would receive.

Finally, we graphed the equation.

And as a big surprise, Grandma came to visit the next day and brought us cookies!