This activity is a investigation intended to get students and teachers to loosen up a little and appreciate how just considering a situation might lead you to a very reasonable approximation.
Too often students think that there is only one answer that is right and that the method for approaching that solution is also limited to the “correct” approach. Surely this fear of experimenting and guessing leads to math anxieties and the fear to reason and experiment.
It’s time to dye eggs … or make a rainbow colored cake. Proportions, saturation, hue and shade.
A Danish market found an interesting way to limit hoarding of hand sanitizer. How much are these costs in your currency? What is the unit price on these bottles? By how much (what percent) was the price increased? Is this…
This day is known for pranks and puzzles. Try one of these 4 activities on April Fools Day. Ask students to analyze where I made my mistake PerplexingProblem.pdf For members we have solutions. PerplexingProblem-solution.pdf …
Clock math, 1,2,3,4,5,6,7,8,9,10,11,12,1,2,3,4,5,6,7… is modular math. Let your students learn about the usefulness of modular math as they color and explore Pascal’s Triangle. Very pretty math!
We’ve got hundreds of great activities that demonstrate how math happens all around us. Let your student choose an activity that interests him/her and enjoy the discoveries.
Use our present need for cleanliness to engage your students. Does it really matter whether you kill 99.9% of the bacteria or 99.999% of the germs? In this 3-act activity we’ve asked students to consider whether these claims about these…
Finding 4-leaf clovers! Shamrocks in Ireland are actually be 3-leafed white clover, trifolium repens. If you are lucky, you can sometimes find a four-leafed clover. How rare is finding a 4-leafed clover? How hard do you have to look? What…
We’re still learning about the coronavirus and its ability to and tendencies toward infection and spread. Students learn about the R-naught number which is a measure of infectious growth. Real-world mathematics!
8 activities to help celebrate π in your school and in your math class. Activities that demonstrate how π was derived; visually show why π makes sense; show a surprising place where π is used; increase students ability to measure and long divide; applauds the talent of people who can memorize large strings of numbers; and lets students just have fun.
A comparison of gasoline in Greece, priced at Euros per liter, and gas in Massachusetts at dollars per gallon. Price and liquid volume conversion using unit fractions.
The Iditarod Dog Sled Race will begin this year on Saturday, March 7th in Anchorage, Alaska. It is often called The Last Great Race on Earth because it is so long and grueling. Students do some rate, distance, and hardship comparisons to decide…
Students reason about the meaning of this formula. They evaluate the formula for South Dakota and their state of choice to understand the weight of each state’s power in choosing the Democratic nominee.
This year we will add the 29th of February to our year? Why do we do that? How can you tell? What if we didn’t add a day every 4 years? Calendar math and flow charts.
Students get a chance to examine the monetary and environmental cost of this bead exuberance with our unit pricing and recycling activity.
