Math Concepts & Skills > Number Properties

Baffling Bacteria
Students determine when bacteria would outweigh them, if it were left to double every 20 minutes.

Big Numbers
Students show their significance of $30 billion.

Checkerboard Dilemma
Students determine how many squares are on a checkerboard.

Division of Labor
Students determine the number of hours two people work.

Gears
Given three gears, and a number of teeth in two of the three gears, students determine the number of teeth in the third gear.

Locker Dilemma
Students determine which lockers will be open, and which closed, after other students have open and closed them.

M&M's®
Collect, organize and describe data, draw conclusions, compare theoretical to experimental probability.

Population in 2020
Students estimate the population of the United States in the year 2020.

Table Hopping
Students determine the number of tables needed to seat a given number of people.

Variable Dilemma
Students solve a series of letter equations by substituting numbers.

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