As mentioned last October, the Warwickshire 11+ test was not difficult.
The greatest difficulty was time. It is a speed test.
The maths was not above year 6 SATS maths standard, which means a capable year 4 child could answer many questions.
My son, who took the exam and passed stated his year 4 brother, (who was at just level 2A in year 2 and increased to 4C in year 3) could have answered over half of the maths questions. If you saw the samples questions, a year 2 children at 3A could have answered them.
Warwickshire CLAIM the test is tutor proof (I don't believe it), which means they CANNOT go above year 6. Children just start year 6 when they take the test, so the maths cannot be as difficult as KES exams or some independent school tests.
It is good practice is to do all past Maths Year 6 SATS papers and all Comprehension papers in the summer holidays before year 6 starts (work, play and relax!). Maths SATS is 45 mins, but give them just 35 minutes, because Maths SATS is for the entire year ability. 11+ are for the "top" stream. 45 minutes is too long and 11+ is time pressure and most children do not get time to check answers.
VR, NVR - just practice papers you can find. These require practice. Above all, increase a child's vocabulary. Find a few new words every week, explain what they mean and try and encourage the use of the words so it becomes
part of a their "normal" vocabulary. Reading a child's dictionary is boring, but it does improve vocabulary... a few pages a day keeps boredom at bay. 15 minutes is enough, else it is too boring!
My advice is to start small amounts of work in year 4. Build up vocabulary and maths. Ensure they are 1 year ahead in maths.
After Jan in year 5 slowly start short 10-15 min papers in Maths, Comprehension, VR, NVR. After Easter build up to full papers in each subject. The summer holidays are time for work, rest and play.
After 11+ relax until January. No extra studying unless they take a private school exam, and then the school will "hot house" SATS, which should be a breeze anyway.
Starting it all in year 5 can be too much pressure.