*Contributor: Marlene Vogel. Lesson ID: 10825*

What can a fly teach you about algebra? Yes, they multiply quickly, and are constant pests! Answer worksheet questions, make paper airplanes, and do experiments to learn about constants and variables!

categories

subject

Math

learning style

Kinesthetic, Visual

personality style

Lion, Beaver

Grade Level

Middle School (6-8)

Lesson Type

Dig Deeper

Table Fly Activity

Think about each of the numbers described below. Make a table showing the numbers that can change and those that always stay the same:

- Number of legs on a normal housefly.
- Amount of food eaten by a housefly in one day.
- Distance a housefly flies in an hour.
- Weight of a male housefly.
- Number of wings on a normal housefly.

Click below to reveal the answer.

In the Table Fly activity above, you were given a list of numbers and asked to put them into categories according to numbers that stay the same, and numbers that change.

Math refers to these numbers as quantities. A *quantity* is anything that can be measured by a number.

Quantities that stay the same are called *constants*, and quantities that change are called *variables*. You are surrounded by quantities that are constant and quantities that are variables every day.

Examples of quantities that are *constant* in your life include the amount of ounces in a gallon, the number of days in a week, and the number of dimes in $1.00.

Examples of quantities that are *variables* in your life include the number of questions on a test, the number of runs a baseball team gets in one game, and the number of M&M's® in a bag.

Below are different quantities. State whether each quantity is a constant or a variable:

How did you do? Try this activity next!

- Take out a piece of paper and pencil.
- Make a table similar to the one you used in the Table Fly activity.
- Walk around the inside of your home and make a list of both constant quantities and variable quantities that you see around you.
- Be prepared to defend to your teacher why you labeled the items as constant or variable.

The *Got It?* section offers opportunities for you to practice the concept of variables and constants.

We help prepare learners for a future that cannot yet be defined. They must be ready for change, willing to learn and able to think critically. Elephango is designed to create lifelong learners who are ready for that rapidly changing future.

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