It is not worth the frustration you'll get from missing the perfect timing by a fraction of a second and then dying. (andymerrill.com)
Teach your fourth grader an important math concept with this quick and simple activity that shows him how to divide whole numbers by fractions. (education.com)
Using a series of «traffic lights,» it reduces your shower time by a fraction each time, helping you save on your water bill without trying. (rismedia.com)