Most words can be sounds out, we call it 'Fred-talking' the word, e.g. "p - o - t". We can then blend the sound, "pot". Some words can't be Fred-talked. We call them 'red' words. As we can't sound them out we just have to know them. These red word walls give the most common and useful words to learn. Start by learning red wall one and work your way up to get ready for Year 1. This will really help with your reading and writing.