Algebra

These posts help students see patterns and relationships.

Steepness and Fall hiking

 Mt. Washington, NH Fall is a beautiful time of year for hiking. Many students will be walking in the woods and mountains to enjoy the colorful leaves and the cool weather outside.  Let them combine what they are doing with…

iPhone 6 opening weekend

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…

Ebola updated

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…

Never-ending pasta

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…

Cell phone plans

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,…

Fall equinox

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…

Doubling your money

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…

Fantasy Football

In the midst of another NFL season, we introduce students to Fantasy Football. Students first calculate football points given touchdowns, yardage gains and interceptions. They are then challenged to generalize an equation for that gives a player’s total fantasy points. Students…

Saffron and paella

In order to cook Paella (a delicious Spanish rice dish) I needed to buy Saffron spice.  It was hugely expensive.  So, I’ve decided to start a business of growing saffron and becoming immensely wealthy.

Back to school

In this investigation students calculate the percentage of the U.S. population (current and historically) that are enrolled in K-12 schools. They are asked to draw conclusions from these variations. Finally, they use their calculations to predict the number of enrolled…

Should I buy the BIG one?

 Let your students decide if the BIG one is a fair deal.  Click on the pic to enlarge and post on the wall.  Have kids a pick a sandwich.  Which size will they get?  Which size is a better deal?…

In the Cloud

I want to find a way to keep my photos, documents, videos and music in a place that is safer then on my computer.  If my Macbook Air melts, where can I keep my irreplacable files so that they aren’t…

Wheel of Theodorus

Bring a little art into your math class as you begin to use the Pythagorean theorem and your students first meet irrational numbers.

Millions of nematodes – How much would you pay?

Beneficial nematodes can kill destructive soil pests in your garden and lawn.  They are tiny worms that infect the grub and larvae phase of these insects and kill them.  To my surprise, a shipment of nematodes includes 10 million worms ……

Typhoon Neoguri approaching Japan

A powerful typhoon has just passed Okinawa, Japan’s southern-most prefecture, and is expected to continue to be very powerful.  What is a typhoon?  How are they scaled? In this activity students become aware of various storm rankings and severity as they…