'Personal, Social, Health and Economic Education: preparing pupils for the challenges, opportunities and responsibilities of life' PSHE Association.
Please see the below links for additional information:
Understanding Relationships and Health Education in your child’s primary school: a guide for parents
Relationships education, relationships and sex education (RSE) and health education: FAQs
Relationships Educations, Relationships and Sex Education (RSE) and Health Education Statutory guidance for schools