With my deferred son, I didn’t do any preparation with him before he went into reception. He knew his letters but couldn’t read at all. He knew his numbers up to 20 and could do simple addition, but that was it.
When he joined reception he was probably at much the same level as every other child there, there was certainly no advantage, and there doesn’t need to be.
Please remember there will be lots of September and October birthdays in his class so your son being the oldest will probably only be by a minimal amount compared to other children.
My son is the oldest by about two weeks and then the other children’s 5th birthdays soon start cropping up….
With me, my choice to defer was based on the research about your emotional and behavioural effects of starting school at just turned four….. they are more likely to be diagnosed with SEN, more likely to have behavioural issues and more likely to have mental health problems when they’re older.
Just enjoy your extra time with him and don’t try and force reading and Beth’s on him before he starts school because it isn’t necessary, and if he starts school already having those skills to s high level then that seriously runs the risk of him being bored and have problems that are associated with that.
Making the decision to defer is so difficult and even though I planned for it for 12 months and got everything in place I was still having many moments of doubts throughout the process.
I had a lot of negative comments from people but at the end of the day unless the people who are making the comments have actually read the research papers then their uninformed opinion doesn’t count for anything.