Apple’s latest iPhone, the iPhone 6, is out. The opening weekend was full of long lines, waits and sold out stores. With all of this hoopla, could the iPhone 6 outsell the 9 million iPhone 5s/5c’s that were sold during their opening weekend in 2013? In this activity kids explore past iPhone launch sales data and predict how many iPhone 6’s were sold during the opening weekend in 2014. 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.
Ebola has continued to gain strength and devastate regions of West Africa. WHO (World Health Organization) updates their data frequently and the progress and lack of control of the epidemic is very concerning.
We’ve gathered the present numbers again for you and your class to study, analyze, and look for trends, hope, suggestions, and conclusions.
On September 8, 2014, Olive Garden offered a $100 pass for never-ending pasta and Coca Cola soft drinks. The 1,000 patrons who quickly bought up the passes will be entitled to as much pasta as they like (with toppings) from Sept. 22 to Nov. 9. The pasta pass sold out in 45 minutes. Consider starting out the activity with the video at the bottom of this post. Then ask the class to consider these questions.
- Is this a good deal for patrons? What are the pros and cons?
- Will Olive Garden go broke?
- Is this good for the restaurant chain?
- Is the pass priced correctly? If not how much should it cost?
- How should we start answering these questions? What information would be useful?
Its time to go get the latest iPhone. Which of the above plans will you choose? Should you sign a 2-year contract on one of the above plans to get the iPhone for $200? Or should you go through T-Mobile, pay $648 for the phone and $60 a month for 3 GB of data?
This lesson makes a great intro to linear relationships. Student pick one plan and consider the cost of the phone and plan over time. They make tables, graphs and equations. Consider allowing students to begin playing with the task without much initial direct instruction. Guide them with good questioning and teach after they have had time to grapple with these questions and construct new ideas.
Tuesday, September 23, 2013 is the Autumnal Equinox. It is the time of year when the imaginary plane that might pass through the Earth’s Equator would also travel through the center of the Sun. At this auspicious moment the number of sunlight hours and night time hours are about the same all over the Earth and in the Northern Hemisphere we move into the Fall season.
My friend and I were arguing about how long it would take me to double my investment amounts. How will your students figure this out? Are there any tricks? Explore investing and exponential growth as your students discover “The Rule of 72.” Also check out this Rule of 72 calculator (or our calculator below) & this video from Khan Academy on the Rule of 72.