Here's an alternative way to introduce new words when working on parent coaching: rather than look into what word a child should say, determine what problem can be solved by using a word. For example, teaching the word "more," solves the problem of getting access to something that has gone away -- some juice, an activity, a song, etc. Core words, such as "more", allow children to use them for multiple purposes. "Robot", on the other hand, has limited utility and doesn't necessarily solve many problems in numerous environments. When a word solves a problem, the child is more likely to use that word throughout the day, thereby integrating it into their functional vocabulary.