On Friday, June 21st, at 11:54 am EDT, the Earth’s North Pole will be tilted as far towards the Sun as it will ever be in the year. This marks the longest day of the year in the Northern Hemisphere and…
The longest day
Tag: graph
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.
Leaves are pretty but …
Brian has spent too much time thinking about his leaf raking. He’s worried about doing the job alone and about how long the job would take with different numbers of rakers. In this activity students see the inverse relationship between…
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…
Cost of a gallon of gas
In 1950, one gallon of gasoline costs $0.27. Today the prices are going down but are they as low as they were in 1950? Or could $0.27 buy more in 1950? In this activity we begin to understand the relative…
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…
Monopoly 2014
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.…
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