How fast is the World’s population growing? Will the world’s population size increase indefinitely? Are all countries’ populations increasing at the same rate? What are some of the factors affecting this growth?
The 8th billion baby
Tag: 5.NBT
Earth Day actions for our planet
We have 16 activities that you could use for Earth Day! Saturday, April 22nd is Earth Day. Help your students become activists for our planet? We have 16 activities that support recycling, conserving resources, awareness of climate change and protecting our planet.…
Time to make your prom clothes … with Duck Tape
Admire the possibilities of Duck Tape attire and calculate the cost of some of the outfits in time and tape.
Iditarod 2023 – The Last Great Race on Earth
The Iditarod Dogsled Race will begin this year on Saturday, March 4th 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 if…
Before the holidays (16 activities)
We have tons (well, 16) of activities to bring to your class in this last week before the holiday break. Movies, science, art, cooking, economics, weather and the logic of calendars. Enjoy!
Three Hanukkah activities
Three great activities to play and learn about Hanukkah. Soda displays, Hebrew calendar, and relating two recipes for their healthiness.
The Algebra of Magic Squares
Students examine Magic Squares for how they could help with math computation practice and having fun.
Whole lot of cookies
Jennifer Fairbanks from Hopkinton, MA sent us this picture of the cookies that she baked in 4 hours using 13 eggs and 5 cups of sugar. Do you see some math here?
Buy, buy, buy and ship (8 ideas)
Here comes Black Friday, Small business Saturday, Cyber Monday and Giving Tuesday. It’s a crazy time of year. Use all of that shopping to educate your students about good deals and how shoppers can be fooled. Is this really 70%…
Inflation and the cost of gasoline
In 1980, a gallon of gas costs $1.22. Today’s prices are a lot higher. Is that because the price has gone up or because in 1980 you could buy a lot more with $1.22 than you can buy today?
Hexadecimal coloring
Probably most of us have heard of and even used hexadecimal color codes. Don’t you wonder why their number descriptions really make sense? In this activity we first ask students to color in our Golden Spiral by giving them the…
Mallie’s latest Big Burger
Students learn about the initial weight of the giant meat patty and calculate the final weight of the patty after it is cooked. They decide what percent lean this meat must have been and consider how long it would take their family to eat the entire world-record burger.
Mental math tricks – part 2
36 x 25 = 900 480 x 25 =12,000 924 x 2.5 = 2,310 Can you see any tricks for doing these calculations in your head? The activity: ImpressYourParents-part2.pdf
Refugees from Ukraine
Civilian Ukrainians are fleeing the war zone in order to remain safe and find food and housing. How do these numbers compare with other tragic evacuations. While interpreting graphics and working with these huge numbers, bring your student’s opinions and concerns into your math class.
When will WORDLE run out of words?
Have you played WORDLE yet? Why do you suppose that this game is so popular? When will there be no new 5-letter words to try?