An absolutely necessary foundational skill is understanding and using directional prepositions. These include "next to", "above", "under", "in-between", "on top of", "below", "top", "middle", and "bottom". In my experience, not only are these concepts often absent from my young clients' skill repertoire, but they can also be the source of frustration leading to behavioral issues. While neurotypical kids may pick this skill up naturally, many kids with ASD may need a little more help with these concepts. Narrating your behavior and the child's can help teach these terms. If you use these terms frequently and deliberately in a variety of situations, they are more likely to generalize these skills. Try the following to help develop this skill in the natural environment. Playing with blocks or legos- "Hm, what block did you put under the orange one? Oh it's the green squar...