How much chocolate is left?
In this short activity, students reason and calculate what is left of these chocolate bars. The bars are the same size but are molded into different number of sections. Which one has...
Ratio and Proportion
Genres
Grade
It might be a good year to see the Perseid meteor shower
Catching a productive meteor shower can be a stunning experience. On the evenings and mornings of August 11th, 12th and 13th there could be a very good show. A last quarter moon ...
How fast will my new puppy mature?
Dudley, born 11/10/2019
Dudley has just come to live with us. He is just a puppy and he is full of energy. He's settling in well even though this is only day 3 of him living with us.
T...
Drill bit fractions
Act One: Drill bits are measured by the diameter of the bit in inches. The drill bits below are ordered left to right in increasing size. The numerators in the fractions have been black...
How can Nike give away so much great stuff?
Worldwide Nike supports many teams and athletes. They design, manufacture, and supply gear for almost every sport imaginable. How much are those give-aways worth? Is the company going ...
Population Clock
How in the world does this clock conclude that there is a net gain in the United States of one person every 14 seconds?
Have a little care about younger children when using this activity. T...
Super Bowl cheesy pretzel poppers
Recipe courtesy of The Slow Roasted Italian
A little more delicious work for the Super Bowl. Students follow a recipe that involves "cutting the cheese" block, figuring how many se...
Flag Art
A little ratio art might be a fun way to get ready for the upcoming Memorial Day holiday. In this activity (Flags) students measure; create whole number ratios for the official U.S. flag; decide h...
Twinkies
Brian loves Twinkies and the news that Hostess is going out of business has upset him terribly. He needs his Twinkies. Twinkies last forever. Right? He's going ...