Happy 14th B'ak'tun!
Luckily, we’ve passed 12/21/2012 and the world is still here and we’ve made it into the start of the next Mayan calendar cycle ... the next B’ak’tun.
The ancient Mayans had an interesting...
Number Sense
Genres
Grade
The Fiscal Cliff - sounds scary
We've used a graphic to help students understand what is meant by the Fiscal Cliff. Students will understand some of the terms and study the consequences of two upcoming scenarios.
The...
Is this possible?
Brian Shoemaker, a Newton, MA mathematics teacher, saw this Dunkin Donuts Mazda traveling down the road.
He wondered if that size coffee cup could really have coffee in it. &nbs...
Starbucks sales (Updated!)
Time to give students some authentic math on a topic they will surely be interested in ... Starbucks! We ask and answer a few questions in this activity.
About h...
Curiosity landed on Mars
Keep your students up on what's happening in space while analyzing Curiosity the Mars Rover's speed, the speed of a radio transmission from Mars, and the deceleration involved in a "sky crane" lan...
What time is it in Cambodia?
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?Let you students ...
My Facebook IPO investment
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 proj...
Storm cleanup
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 ...
It sure is cold out ... or is it?
Students ponder the relationship between place latitudes and average January temperatures while they try to discover a correlation. Is this a linear or near linear relationship? … averaging, mis...
Fast Growing Plant
This activity/post is a little different than are usual posts. We look at a particular math concept and consider how to use context, models and CCSS math practices to increase stud...