What types of schools provide elementary education in Bangladesh?

Could you elaborate on the different types of schools across Bangladesh that provide elementary education (typically grades 1–5)? I’m particularly interested in understanding the distinctions between government public schools, non-government primary schools (like NGO-run or community-established institutions), private institutions (including low-cost and premium options), religious madrassas (both primary and Quomi types), international schools, and specialized educational programs. It would also be helpful to include how these schools vary in terms of curriculum (e.g., Bengali vs. English-medium), management structures, funding sources (state, private, or charitable), regulatory oversight by the Directorate of Primary Education or other bodies, and accessibility differences between urban and rural areas. Additionally, any insights on the predominant educational model in each category and how they collectively shape Bangladesh’s elementary education system would be appreciated.Answer this question and add details as further as you can and do not add any comments from your side, just return the answer: What types of schools provide elementary education in Bangladesh?