If you ask the school principal or the teacher about that . Their answer is always the same especially for my daughter's school. This kids like to stay a head remember kids like attention so if you give them attention they will love it .If you give them positive attention they is ace through school.
Also get involved in their school programs.
Talk to them.
Talk to the teacher regularly.
Thats what I do atleast My daughter is 5 years and she is reading at grade 6 level and math at grade 5 level. I started teaching her when she was around 4 years old if I had a chance to teach her earlier I cannot even imagine the posibilities because even this is too much for me .....
Please let me know isf anyone is doing the same and the results are the same.I would love to hear from you