Oxford University Press has a free teaching resources page, which includes among other things, English grammar exercises, word spelling, synonyms challenges.
The Imperial War Museum (IMW) in London, has teaching resources about Victory in Europe Day (VE Day) and World War II:
The United Nations has a free resource page dedicated to sustainable development goals. The materials, which include, stories, videos, a board game and lesson plans, are designed for adults and youth alike.
Carter’s brand has some craft resources/ideas for kids:
Giant Screen films (GSF) is offering free streaming of three classical movies for education purposes:
Project Gutenburg is a library of 60 000 classical free eBooks that you can download, using your laptop or mobile. It is a large collection of free public domains books so they are not subject to copyright or other domains restrictions. Project Gutenberg eBooks are classical books published before 1924.
Toys R Us has a resource page and it is offering among others things, digital coloring, printable activities, videos and DIY (do it yourself) play idea.
Directories, Almanacs, Yearbooks, Handbooks Available Online