Students learn about nanotechnology and why it works by looking closely at surface area and its comparison to volume. Hopefully they will begin to understand the incredible possibilities of this science.

23 people are coming to my house for pumpkin pie and a hike. How many pies should I make? How much of each ingredient will I need? What quantities should I buy? Engage your students in estimation, multiplication of fractions and proportional reasoning.

Students get a visual and geometric understanding of the measurements and shapes of a cord of wood while using the relative size of a ruler in various images.

Do you think that Barbie can out-earn Avatar? Students study the numbers, recognize the need for an inflation adjustment, get to share their observations about the movie and its messages, and draw their own conclusions about how far Barbie will go as a money-maker.

We have two timely activities … Updated! All the ice cream that you can eat All the ice cream that you can eat for only 10 cents! Wow, that’s a great deal! How great a deal was that? The history…

Wildfires in Canada have been spreading dangerous smoke pollution throughout much of North America. What is a dangerous size of particles per cubic meter (PM)? How tiny is that? How do those particles get into your body?

Is some heat more bearable? What is the heat index measure? How does that affect our risks and our tolerance of heat? How does sweat come into all of this?

For Father’s Day Thank you Mother and Father for all of those diapers – Students compare the cost of buying disposable versus cloth diapers. They estimate how much they cost their parents in diapers and consider how much they will…

How fast is the World’s population growing? Will the world’s population size increase indefinitely? Are all countries’ populations increasing at the same rate? What are some of the factors affecting this growth?