## Tuesday, March 3, 2015

### Eating Your Homework is as Easy as Pi!

Humdrum or delicious? When students eat their homework, the classroom suddenly turns from tedious to oh-so-tasty. Get ready to serve up some yummy new fun—while discovering and learning about math and science.

Psst, did you remember that Pi Day is March 14? It’s time to divvy up some Variable Pizza Pi. Look up the recipe for this constant crowd-pleaser in Eat Your Math Homework, and get set for variable excitement—quite a lot . . . or mega.

Never mind the constants (the crust and the sauce), here’s your chance to add your own variables: toppings such as pepperoni, green pepper, or pineapple chunks. And we’re not done yet! Measure the circumference and determine the diameter of the pizza. This will help you pinpoint pi, that amazingly endless decimal number that starts 3.1415926 . . . (pi = circumference divided by diameter)

What about in the classroom? How about switching things up a bit with this yummy classroom adaptation? Share circle shaped cookies (Yes, the cookie itself and the icing are the constants). Have students decorate each cookie with variables such as chocolate chips, raisins, or colored marshmallows. Figure out the circumference and diameter of one cookie (Hint: To measure the circumference, use a piece of string. Place the string around the rim of the cookie. Cut or mark the string to match the size of the cookie’s circumference. Straighten this measured string and find its length using a ruler).

When students find the circumference divided by the diameter, it’s easy as pie to calculate pi. Was the answer close to 3.14? Why wasn’t it exact? What else can you find out about pi?

And now here’s another tasty tidbit. Let’s face it, all science lessons are not created equal. Neither are rocks. In fact, there are three basic categories of rocks: metamorphic, igneous, and sedimentary. Heat and pressure cause metamorphic rocks to morph, or change form. Igneous rocks form from cooled liquid rock beneath the earth’s surface. And sedimentary, well, think of a lasagna—when layers of sediment press against each other, the layers meld together.

Speaking of lasagna, check out the recipe for Sedimentary Pizza Lasagna from Eat Your Science Homework . . . Yum!

. . . Or whip up some classroom friendly Sedimentary Sandwiches instead. Use 3 or 4 layers of bread (or crackers) and your favorite sandwich fixings to build a rock solid masterpiece. Bite in—and don’t worry about chipping a tooth!

For more on how to turn your classroom into a banquet of learning, please check out Eat Your Science Homework and Eat Your Math Homework from Charlesbridge Publishing.

Your constant math and science pals,

Ann and Leeza