Useful websites
Maths
Mathletics: http://www.mathletics.co.uk/
BBC Education: http://www.bbc.co.uk/schools/websites/4_11/site/numeracy.shtml
Khan Academy: https://www.khanacademy.org/math
Brain Pop: https://www.brainpop.com/math/
Mad for Maths: http://www.mad4maths.com/kids/
Nnrich Maths: http://nrich.maths.org/public/
English
BBC Education: http://www.bbc.co.uk/schools/websites/4_11/site/literacy.shtml
Brain Pop: https://www.brainpop.com/english/
Science
BBC Education: http://www.bbc.co.uk/schools/websites/4_11/site/science.shtml
Science Kids - Fun science experiments, facts, games, activities and projects: http://www.sciencekids.co.nz
Brainpop Science – How the world works (there is an available app as well): https://www.brainpop.com/science/
Amazing Space: http://amazing-space.stsci.edu
Garbology – how much do we waste? - http://www.naturebridge.org/garbology/families
Discovery Kids: http://discoverykids.com
Engineer Girl: http://www.engineergirl.org
Science articles for kids: http://kids.frontiersin.org