(Discover Science and Technology)
By Suzanne Vicoryosmanson
Preschool: Do three requirements including the two starred *
_____*1. Understand what a railroad and trains are.
_____ 2.* Learn train/ railroad crossing safety rules as well as safety rules when riding trains such as subways and elevated trains.
Level 1: Do four requirements including the two starred *
_____*1. Do Preschool requirements 1 & 2.
_____ 2.* Learn about the two typ...