How Old are Three Daughters?
Help a census taker figure out a father’s riddle about his daughters’ ages.
Author Archive for: corrill
Entries by InterMath
Non Repeating Decimals
Examine the relationship between the denominator and the numerator in fractions with non repeating decimal representations.
Six Divisors
Find the divisors of the number N.
Perfect Numbers
Find perfect numbers.
Consecutive Primes
Investigate sums and averages of two consecutive primes.
Juice Containers
Using models rather than algorithms for computing with fractions.
Camera Lens Aperture
Looking at the inversely proportional relationship between camera aperture and f-stops in photography.
Inversely Proportional
Exploring inverse proportion within the topic of speed and time relationships.
Math and Cookies
Looking at proportion in the context of a friendly argument over sharing cookies.
Volume and Pressure
Looking at how inverse proportion relates to science.