Apparently a child needs a whole bunch of skills in order to learn to write. This includes the ability to grasp a pencil and the coordination to actually put the pencil to the paper and make marks on it. These are skills that your granddaughter will be practicing all the time anyway (holding objects, putting food in her mouth, etc.). One of the co-authors of Baby Minds: Brain-Building Games, Linda Acredelo PhD says that babies acquire “symbolic knowledge” when they’re around three years old (that is, they start to associate certain symbols with particular meanings). This is an important step towards writing and should be encouraged (when she points to a furious scribble and says “that’s you!” try to respond positively). You can also start reading books about colors, numbers, letters, etc. and get your granddaughter to help you point out the letters/numbers as you go (helps them to recognize more symbols).