https://myminimaths.co.uk/year-6-mini-maths/ - Maths website broken up into year groups with questions and the answers underneath. There is a set of questions for each and every topic.
https://www.bbc.co.uk/bitesize or www.lovereading4kids.co.uk - BBC bitesize has lots of excellent resources and sections.
https://nrich.maths.org/primary - NRich is a site devoted to maths problems of all difficulties. 5-11 age problems are really useful and they also provide solutions.
https://www.gov.uk/government/collections/national-curriculum-assessments-practice-materials#key-stage-2-past-papers - the collection of past SATS papers. The mark schemes are also provided so you can check answers.
https://www.nhs.uk/change4life/activities - Great for PE ideas.
https://www.bbc.co.uk/teach/supermovers - Also great for PE.
https://www.rgs.org/schools/teaching-resources/rivers-(1)/ - six lessons studying rivers and flooding
https://getoutside.ordnancesurvey.co.uk/guides/understanding-map-scales/ - great for mapping and studying scale.
www.twinkl.co.uk/blog/how-to-utilise-twinkl-during-the-coronavirus-shutdown-a-guide-for-schools - this is a website many teachers use to find resources. They have provided their brilliant resources for free and the login details are on the letter sent out with the home learning packs.