What will the headline read this time? Apple’s latest iPhone, the iPhone 6S and 6S plus, will be coming out September 25th. After the opening weekend, newspapers and TV will probably picture long lines, waits and sold out stores. With all of this hoopla, could the iPhone 6S outsell the 10 million iPhone 6 and 6 plus’s that were sold during their opening weekend in 2014? In this activity kids explore past iPhone launch sales data and predict how many iPhone 6S’s will be sold during the opening weekend in 2015. Younger students can investigate the data through a bar graph, while older students can use a scatter plot and even use equations to model sales growth. Technology: Students can model the data with linear, quadratic or exponential models at this interactive Desmos graphing activity, the data and sliders are all set to go. Let your students rough out their models & predictions as they work through the activity.
an Excel spread sheet of data; iPhone-opening-weekend-sales15.xlsx
Here is a news story about the first iPhone and its opening weekend sales in 2007. And here is a news story that reveals how many iPhone 6’s were sold during the opening weekend of 2014. Looking for more iPhone math? Check out our Cell Phone Plans activity and have students determine which carrier, plan and contract is the best deal over the long haul.