There's been some good research in the UK about the impact of class size in schools there. The summary is that it is unlikely to be the most effective way of im

There's been some good research in the UK about the impact of class size in schools there. The summary is that it is unlikely to be the most effective way of improving outcomes: https://educationendowmentfoundation.org.uk/education-evidence/teaching-learning-toolkit/reducing-class-size https://educationendowmentfoundation.org.uk/education-eviden... https://www.gov.uk/government/publications/class-size-and-education-in-england-evidence-report https://www.gov.uk/government/publications/class-size-and-ed...