QR codes ???

Your students have probably seen these images around and might not know why they are becoming popular for smart phone scanning ... and possibly dangerous.  Students figure out the number of permutations of symbols that are possible with these 2-d scanning codes and compare that capability  to the capacity of ordinary UPC barcodes.   This activity might open student's eyes to some of the marketing that surrounds them and help them become aware of some possible dangers … all while engaging in mathematics.



For members we have the solutions for this activity below.

QR_codes.doc          QR_codes-solutions.pdf

Steve Jobs 1955 – 2011

"Steve leaves behind a company that only he could have built, and his spirit will forever be the foundation of Apple."... Apple CEO Tim Cook in a memo to Apple employees.

Students can honor Steve Jobs and be involved in an activity that allows them to talk about him and his accomplishments while devising a scaled time line of his life.

Tech Connection: You might also consider using TimeToast which is an interactive timeline maker.

CCSS: 5.MD1, MP.1, MP.3, MP.5, MP.6


Sample solution for members:

Steve_Jobs.doc         Steve_Jobs-solution.pdf

Bank of America Debit Card Fees

Millions of people and businesses use debit cards every day.  Banks didn't charge customers for their use. Banks actually gave rewards and incentives to customers for using them.

So how did banks make money from debit cards?  Banks charged the businesses that accepted those card payments. Merchant transaction fees averaged 44 cents per transaction, but, due to a new government regulation, fees are now capped at 24 cents.

It is estimated that the banking industry will lose billions.  Some banks are now starting to charge their customers a monthly fee for card use.  Bank of America just made the news by announcing a $5 per month debit card fee. Customers are angry.

In this activity we take a look at the math behind this fiasco.  Will Bank of America come out ahead or lose money with the new debit card fee structure?

CCSS: 5.NBT.5, 7,EE.3, MP.1, MP.2, MP.3, MP.6


Members can download the solutions to this activity below.

Debit-Cards2.doc             Debit Cards Solutions.pdf

Why Does it Stay in Orbit?

On Monday, the space shuttle Endeavor launched for the last time. The six astronauts on board docked this morning at the International Space Station to join the 6 astronauts and cosmonauts who live at the ISS.

Combine current events, Earth science, and parabolic motion in your math class. Students will use their understanding of exponents and practice converting speed and distance from metrics to US customary units to complete this exercise ... and, they will learn about space science in the process.

CCSS: 7.G.4, 8.F.5, HSA.CED.2, HSA.REI, HSG.MG.3


For members we have an editable Word doc and solutions to this investigation.

    why-does-it-stay-in-orbit2.doc            AnsSheetOrbit.pdf

Everything Royal Wedding

Friday, April 29, 2011, at 11:00 a.m. will be the much talked about wedding of Brittain's Prince William and Kate Middleton. Engage and inform your students in an investigation of percents, proportions, exchange rates, time zones and Royal memorabilia.


Video game console sales

Video games continue to be a hot seller and a must-have for millions of gamers around the world. The recent releases of the Xbox 360 Kinect and the Nintendo 3DS have been big sellers and will probably be the big video game stories of 2011. With that in mind we have created a Video Game Console math activity which examines the greatest selling video game consoles of all time. This is sure to be a hit with kids as they work on their data analysis and number sense through the context of video games.