Source: https://www.gov.scot/binaries/content/documents/govscot/publications/correspondence/2021/03/oecd-review-of-curriculum-for-excellence/documents/oecd-response-to-scottish-government-letter---10-march-2021/oecd-response-to-scottish-government-letter---10-march-2021/govscot:document/OECD+response+to+Scottish+Government+letter+-+10+March+2021.pdf