DS is coming up to 5 years old and it is such a rarity to see him pick up a pen/pencil and use it for its intended purpose! He much prefers to line them up in a particular order depending on his mood - might be size, colour, or a mish mash. How can I encourage him to at least draw on paper rather than the walls? He is fantastic at saying the alphabet, numbers etc and I'd really love to practise these with him :(