# Tag: ratio

## What is a quantum dot?

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.

## Indigenous Peoples or Columbus Day

Two activities – Students calculate how large Columbus must have thought the circumference of the Earth was if he reached the East India when he landed in the Bahamas + history of who lived there. In the second activity, students use latitude and longitude to analyze the distances Columbus’s trip involved.

## Hurricanes again …

Updated In this updated hurricane activity, we’ve ask students to examine the Saffir-Simpson hurricane wind scale and consider what other elements besides this ranking may contribute to the devastation that is caused by tropical storms. Students read about hurricane classfications…

## How many times bigger?

Listen to students initial thoughts as they wrestle through what “bigger” means … length? height? wheel-base? volume? Come up with guesses that are too high and too low. Show that the average of guesses is pretty close to actual.

## Triple Crown hopefuls at the Preakness

Saturday, May 20th, will be the running of the Preakness Stakes thoroughbred horse race in Baltimore, Maryland. The Preakness is the second major race for 3-year old thoroughbreds to run in their effort to claim the Triple Crown of horse…

## Big bucks 2023

Huge sports contracts! We often hear about big player contracts. Who makes the most per year? Per game? What sports?

## Earth’s perihelion with the Sun

Today, Wednesday, January 4th, 2023, Earth will be as close as it gets to the Sun during its orbit. Shouldn’t that make this the warmest time of the year? In this activity students become familiar with the terms perihelion and aphelion as they calculate…

## Giant Pumpkins 2022

Sts use proportions to calculate the quantities of pumpkin puree and the number of pumpkin pies that could be made from one of these giant pumpkins.

## Mallie’s latest Big Burger

Students learn about the initial weight of the giant meat patty and calculate the final weight of the patty after it is cooked.  They decide what percent lean this meat must have been and consider how long it would take their family to eat the entire world-record burger.

## How old are you?

We usually give our ages in years, but that isn’t very precise is it?  In this activity students find their age in days, hours and minutes.  First students take two minutes to estimate their age in days, hours and minutes.…

## Who has the greatest Men’s March Madness program?

The Kansas Jayhawks just won the finals of this year’s March Madness tournament. Which NCAA teams have had the best basketball programs over the years.  Students decide which stats count towards the “Greatest March Madness Program”.

## Mardi Gras, 2023

In New Orleans revelers throw and collect purple, green, and gold beads. Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.