# Tag: graph

## I need help raking my leaves

In this activity students see the inverse relationship between number of workers and time to complete the whole job. They graph hyperbolas and consider how long the extreme condition of zero people raking might take to complete the job.

## Inflation and the cost of gasoline

In 1980, a gallon of gas 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 with \$1.22 than you can buy today?

## Activities for the Holiday break

Students work with the geodesic icosahedron of the Time’s Square Ball by slicing an icosahedron. How are properties valued according to their distance from GO in the game of Monopoly? Games with dice; puzzles; probabilities; and more.

## Monopoly and summer games

In the board game, Monopoly, does a property’s distance from GO correlate to its rent when you land on it? Using Brian’s spread sheet (list of properties, distance from GO, rent and rent with properties), students create scatter plots.  They…

## Summer Solstice, the longest day

Sunday, June 21st, 2022 (Revised and updated) Sunrise on summer solstice at Stonehenge On Sunday, June 21st, at 5:13 am EDT, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year.…

## President’s Pay for Presidents’ Day

The President’s have only received a pay increase 5 times in the United States. Picture it with a step graph. Calculate the actual salary using the CPI (Consumer Price Index). Do the Presidents need a raise?

## Moneymaking holiday movies

Which movie do you think is the highest grossing holiday movie of all time? Students analyze holiday movie data. They will round, estimate, compare, calculate percent increase, consider the most appropriate graphical representation and graph the data.

## Will the new iPhone sales be huge?

Apple just announced their new, 10th anniversary, iPhones, the iPhone 8 and the iPhone X.  These phones will soon be in stores, the iPhone 8 comes out on September 22, 2017. The iPhone X is available as of November 3rd. …

## What’s your favorite sport?

What is your favorite sport?  Wait, do I mean your favorite sport to play or your favorite sport to watch? Does it matter? Are your favorite to-watch sport and your favorite to-play sport the same sport or different? How does…

## Season 12, American Idol

Let your student study American Idol viewing figures over the last eleven seasons. Students compare historical season premier and season finale audience size in several different ways to determine which event has had higher viewership.

## Snow Days

Here are some pictures from a recent snowfall at my house.  How Much Snow Did I Get?  Have students make an estimate.  Ask them for a guess that is probably a little too low and one that is probably too…

## My Facebook IPO investment

What is an IPO?  Are they always good investments? Students analyze charts and data, learn a little about investing, calculate percent loss (unfortunately), and make some Facebook stock projections. facebook-IPO.pdf

## It sure is cold out … or is it?

Students ponder the relationship between place latitudes and average January temperatures while they try to discover a correlation. Is this a linear or near linear relationship? … averaging, missing data for averaging, line of best fit, Google Earth, world locations,…

## Throwing up again

Anchorage, Alaska has received more than 100 inches of snow this winter.  The height of the tunnel to people’s homes is getting higher and higher. When they shovel an area, they have to throw the snow practically straight up from…

## Valentine’s Cardioid

WojciechSwiderski at the Polish language Wikipedia Happy Valentine’s Day!              cardioid.pdf This PDF contains four ways students can draw cardioids for Valentine’s Day. CCSS: HSN.CN.B