C and F
This activity begins with exploring connections among a few photos to spark curiosity and critical thinking in the starters, before diving into the main activity where students will wo...
tags: graphing
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A Parametric Heart
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In this updated activity, students will explore parametric equations to graph a heart shape using sine and cosine functions. Begin with the starter activity to set the stage (o...
Chocolate Milk Account
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In this activity, students will explore a school milk account where money is deposited and deducted as chocolate milk is purchased over time. But first, start off with t...
Inflation and the cost of gasoline
In 1980, one gallon of gasoline costs $1.22. Today's prices are a lot higher. Is that because the price has gone up or because in 1980 you could buy a lot more than you can buy today for...
Should I buy a gasoline, hybrid, or electric car
Should you buy a hybrid or an electric car to save money and the planet?
Students create equations for finding the break-even points of these vehicles by mileage and years of ownership. The...
It's tick time again ... and Lyme disease
With the start of summer and wonderful outdoor activities, it might be good to examine the growth of Lyme disease and to recognize its carrier, the deer tick.
Will this be a record ...
How much should the 40-oz size cost?
We found this chalkboard menu at a coffee shop recently. The shop had prices for the 12-oz (small), 16-oz (medium) and 20-ounce (large) cappuccinos. And they will also make you 40-...
Bowling Deals
Is there a general way to figure how much its going to cost you (and your friends) to go bowling? Should you pay per game? Or bowl per hour? Don't forget that you'll need to rent sho...
Fireworks on your calculator
Let your students experiment with their graphing calculators to create a nice fireworks display? We've written a brief activity that questions students about manipula...
Saving Water Bottles
In my grocery store they now have these new water bottle refilling stations. You can simply refill your own container with water instead of buying a six-pack of bottled water....