This company (run by two sisters, one a homeschooler, the other a teacher) provides virtual "kits" for experiencing great books. Each kit contains suggestions for props and hands-on activities for the book, as well as some printable resources for teaching traditional literature concepts and writing tasks. There are many useful links and ideas in each kit. 

This is a wonderful website from Stanford Math Education Professor Jo Boaler. The site has many inspiring articles and videos about a new approach to math teaching and learning. There is a free online course to help students think differently about math. She is also in the process of writing a K-8 math curriculum that follows her revolutionary approach. You can try out many of the tasks and activities on the website. The curriculum looks great, but the best thing about this resource is the potential for both students and parents/teachers to develop a great mindset about math.

These learning kits on different countries are designed to promote global citizenship. They contain information booklets, recipes and crafts, a flag and a toy from each country. Buy a single kit, or save money with a package and choose the countries you want.

These books are an offshoot of "Horrible Histories." The stories teach all sorts of interesting math concepts. The website has some tricks and games, and lots of teacher resources. A great tool for getting math avoidant kids more interested in math!