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 blacked out. What could the numerators be? Explain your…

+ Even more NFL math! Super Bowl ads and scientific notation Updated! – On Monday, when the Super Bowl is over and all of the ads have been seen, use this scientific notation activity to involve math students in the talk of…

Data on the National Mall sites – Two data analysis activities about the National Mall. Who do we honor? – What people or events are included in the National Mall monuments? Students use fractions or percents to decide what they can notice…

11 math activities to use before the Thanksgiving break. Football, Turkey baking, Consumer spending, Macy’s Parade, mashed potato recipe doubling, and more …

Using his famous mashed potato recipe, Brian has asked students to change decimals to fractions, to calculate ingredient measures for various-sized Thanksgiving gatherings, to explain their thinking in calculating these figures and to judge how many servings could be created…

6 activities! Peeps – Students estimate the number of Peeps sold each Easter season. They consider reasonability by making guesses they think might be too high and too low. Students determine necessary info, problem solve and improve their original estimates. They conduct random samplings…

Justify has won the Triple Crown. He’s the 13th horse to ever win all three races … Kentucky Derby, Preakness, and the Belmont Stakes. Amazing! How do you calculate compound probability? Skip the betting odds and deal only with the…

Justify won the Preakness – Can he win the Triple Crown? This past Saturday was the running of the Preakness Stakes Thoroughbred horse race in Baltimore, Maryland. The Preakness is the second major race for 3-year old thoroughbreds to run…

In this activity students decide how to divide 2 pizzas amongst 6 adults and 3 pizzas amongst 8 kids. Fractional pizza parts need to be drawn and considerations discussed about which fractions are greater. Students interpret a fraction as division…