Following the western education system, kindergarten and nursery school have been mushrooming in our country over the last few years. But lack of brilliant and high-quality books those schools are always lagging behind from the promise the education lover founders do at the time of the inception of that school. Generally kids of 3 to 10 years are made admitted into kindergarten and nursery school.
They enjoy rhyme, dance, reading, reciting, number counting and letter writing there. That is very good, but the very young students need various brain development courses which storm their intelligence and that are definitely IQ add-on.
In western school, kids play in the classroom with toys designed for raising their IQ. But in our country it is not possible to invest a lot for that kind of classroom. Thus we entirely depend on books and teachers' lecture. Teachers depend on book completely.