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.
Children should remain rear facing until age 2. Toddlers should ride in forward-facing child safety seats in the back seat until they reach the upper weight or height limit of the seat (usually around age 4 and 40 pounds). According to Utah law, children must ride in booster seats until age 8. Itâs even safer to keep them in boosters until theyâre 4 feet 9 inches tall, no matter their age. After age 8, children should always wear a seat belt. Children 12 years of age and younger should continue to ride in the back seat.