“If a function is a vending machine…”

Not sure exactly how to use this, but the analogy is smart and well-developed. Maybe this could turn into an activity where students extend a basic analogy (or find their own analogies?) for functions.

A ONE-TO-ONE FUNCTION

A FUNCTION THAT IS NOT ONE-TO-ONE

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s