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.
It is always good to know where your child stands emotionally and developmentally. An infant becomes a toddler at the age of one. The toddler stage occurs between the ages of one and two. During this time, mobility becomes increasingly more noticeable. Independence becomes identified and defiance is normal. Toddlers begin to recognize themselves when shown pictures or placed in front of a mirror.