frange(), a range function with float increments (Python recipe) by Dinu Gherman ActiveState Code (http://code.activestate.com/recipes/66472/) Sadly missing in the Python standard library, this function allows to use ranges, just as the built-in function range(), but with float arguments. All thoretic restrictions apply, but in practice this is more useful than in theory.
When I worked at a daycare we would have bike day during the summer when kids, aged 3-5, could bring in their bikes and ride them, most of the kids were on big bikes with training wheels and a few of the 4-5 year olds were without training wheels.
Biking is a fun way for children of all ages to get active and stay fit. Most children learn to ride a tricycle at around 3 years of age. Between 4 and 7 years of age most children learn to ride a bike. However, remember that each child is different and will learn to ride a bike at his or her own pace. Biking can be an athleteâs primary sport, as well as a way for athletes to cross-train and avoid overuse injuries. Injured athletes often use biking to stay in shape during rehabilitation before returning to their sport.