Hi, I am an 11+ tutor for the gloucestershire schools.
Where I am it is absolutley not too late to start.
BUT some areas are much, much more competative so it may be harder.
but also some areas eg Kent have a much higher percentage who pass the exam and end up in grammar schools, so may be easier!
One thing I would say, for a bright child, it is not too late to start. If you look at their last school report, then I would expect them to be achieving Greater Depth (or working above expectations) in English and Maths. If they are not, then it is a much harder ask.
But if you are going to do it, then get serious and do it. You will need to spend money on books, websites and resources and you will need to commit to 2-3 hours per week. You don't need a tutor, you do need to take time and effort.
Do some research, make sure you are clear which exam they will do, and what the format is in your area, eg for us, there is no written element at all, it is all mutiple choice style. So in preparing kids for it I do zero writing practice.
I recommend the CGP books, NOT the 10 minute practice books (they are good, and have their place) I mean the A4 sized ones called Practice Book with assessment tests, make sure it is for the correct test in your area (eg GL assessment test) and the correct age band (10-11)
I recommend these because they are set out in subject order. So you can do a page on eg ratio and see if that is an area that needs more work, or if they are fine. The answer sheets in the back are great because they actually explain why, which is very helpful. You will come across some things that they haven't done in school (ratio, possibly percentages, some of the geometry) but most is school curriculum for English and Maths.
Work through all the ones for your test (so for our area that is English, Maths, Verbal Reasoning (VR) and Non Verbal Reasoning (NVR)) for any subject area that is not secure, do more practise, find stuff online, get Bond or CGP practice books and practice until confident. Make sure when doing things online that you are doing the correct ones for your area NVR for CEM test is different to NVR for the GL test. VR has a lot of things which will need practise and explanation.
Hold off using the assessment tests at the back of the book until they have worked through the whole book and you are happy that they can do all the subject areas.
Then use the assessment tests. Timed, and get them to have a second go at the ones they get wrong.
Then start to think about exam technique:
- don't get stuck on a question, give it a go and then move on.
- use the answers you have been given to help you, you don't always need to work out the whole thing.
- what to do when you can't do something - clever guess and move on
those sort of things, and start to do things to a time limit. (this is where the 10 minute pratcice books can be really helpful)
They don't need to be getting 100%. In our area, if they get 65% in teh CGP tests they will probably get into grammar school. (probably!)
Get some practice tests to use in the summer holidays.
Good luck!