with the tenets of the faith, although in some provinces, their dismissals have been successfully challenged in court based on the circumstances. Religious schools Each province deals differently with private religious schools. In Ontario, the Catholic system continues to be fully publicly funded while other faiths are not. Ontario has several private Islamic, Christian and Jewish schools all funded through tuition fees. Since the Catholic schools system is entrenched in the constitution, the Supreme Court has ruled that this system is constitutional. However, the United Nations Human Rights Committee has ruled that Ontario's system is discriminatory, suggesting that Ontario either fund no faith-based schools, or all of them. In 2002 the government of Mike Harris introduced a controversial program to partially fund all private schools, but this was criticized for undermining the public education system and the program was eliminated after the Liberals won the 2003 provincial election. In other provinces, privately operated religious schools are funded. In British Columbia the government pays independent schools that meet rigorous provincial standards up to 50% of the per-student operating cost of public schools. The province has a number of Sikh, Hindu, Christian, and Islamic schools. Alberta also has a network of charter schools, which are fully funded schools offering distinct approaches to education within the public school system. Alberta charter schools are not private and the province does not grant charters to religious schools. These schools have to follow the provincial curriculum and meet all standards but are given considerable freedom in other areas. In all other provinces, private religious schools receive some funding, but not as much as the public system. Levels in education As the education system in Canada is managed by the varying provincial governments in Canada, the way the educational stages are grouped and named may differ from each region, or even between districts and individual schools. The ages are the age of the students when they end the school year in June. Early childhood education CPE Pre-school (French: Garderie or Jardin), Pre-Kindergarten, Pre-Primary or Junior Kindergarten (JK, ages 3–5 average age 4) (Nova Scotia and Ontario) Grade Primary, Senior Kindergarten or Kindergarten (French: Maternelle) (SK, ages 4–6 average age 5) Elementary education Grade 1 (ages 5–7, average age 6), they start in the calendar year when they turn 6 (For example, someone born in July would be the average and be 6 all of grade 1, while