Hi, am I right in thinking Unit 3 is about Designing Programmes for Early Learning ?
If so a good start might be this PDF. It's about the provision of effective high quality Childcare and is the summary/findings from EPPE - Effective Practice of Pre School Education project
Summary of findings from IOE.org.uk
For information DCSF have their own published SureStart version -
EPPE summary
The environments part can be looked at as how stimulating, interesting, engaging and accessible the surroundings and situations are.
How they have been planned, funded, organised and how they work in practice !
What the children gain from positive environments and negative environments and how by changing things provision can be improved or matched to support the Children and Staff needs.
Are you able to meet up with your assessor or tutor to go through things ?
Hope it helps
xx