John M. King, Strathcona, Wellington and Norquay schools will pilot full-day kindergarten in Winnipeg School Division in September.
Trustees confirmed Monday night the four schools will be the first full-day classes in the division.
Board chairwoman Suzanne Hrynyk said each school would have one classroom apiece of 14 to 20 students.
Some parents at the four schools have opted to leave their kids in half-day programs, she said.
WSD hopes that eventually both nursery and kindergarten will be full-day programs at all elementary schools in the division.
The province only funds half-day kindergarten and does not fund nursery.