I need help! My daughter is traveling in Cambodia and we are supposed to Skype just before her dinner time in Phnom Penh, Cambodia. What time is that here in Boston?

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

Act One: The world record for the tallest structure made of Legos was recently set in Seoul, South Korea. Check out the pictures and video below: How much do you estimate that it costs for only the materials, to build this tower?

Use this activity to help your students discover the Pythagorean theorem. Pythagorean theorem work is often skill and drill work with contrived right triangle problems. In this activity students work with a visual representation of the Pythagorean theorem in order…

This activity could be used as an introduction to trig ratios. Students figure out the approximate length of the huge branch that I have to fell for safety and firewood. After approximating the branch’s length, they calculate how many logs…

How long will it take me to download the video game? This can be done as a 3 Act Task. To get started simply show the video and following picture to your class. ACT ONE: I decided to download a…

Jeremy Lin is the New York Knicks most startling player. His story is exciting in that he graduated from Harvard in 2010 and was not immediately drafted into the NBA. At first he was playing in the NBA Development League…

The NBA All Star game is being held on February 26th. Did you know that this was the third major professional sport all star game in the last month. The Pro Bowl and the NHL All Star Game were also…

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

Gumball Machine Problem from Brian Marks on Vimeo. Show Brian’s video to your class and let your students cogitate, estimate and calculate. Sheet with only a still shot from the video and room for figuring: gumball-image.pdf We have a solution…

Lately the news is filled with talk of the Euro, US foreign debt, the fragility of European monetary systems, and the interdependence of all of these crisis. In this activity students become familiar with the Euro, practice translating the Euro’s…

Friday is the Statue of Liberty’s 125th birthday. Student’s can practice scaling with ratios, multiplication factors, or similar figures as they engage in the news of the day, learn a little about the statue’s history, see some amazing old photos…

To see the present world population, go here. http://www.worldometers.info/world-population/ During the Fall 2011 the 7 billionth human on earth was born. The counter mentioned above gives updated approximations of the current world population. When will we hit 8 billion people? …

The Occupy Wall Street (OWS) movement has grown since it began on September 17th. Students can look at charts that show percent mentions of the demonstrations and calculate the percentage of media mentions, percentage of comment growth, and the percentages…

“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…