These are some online resources for teaching various subjects. Be aware that these are more secular in nature and you may want to look at the resources to be sure they are not contradictory to your worldview.
Glencoe Literature Library provides study guides to go along with many books
A Book in Time provides activities and reading suggestions for teaching history.
Nutrition for Healthy Kids The first lesson is free. There are more lessons available to purchase.
Children’s Short Stories is full of short stories on lots of different subjects.
Free Read Feed eBooks for Kindle
Art Lessons on YouTube Self explanatory
Maps Etc. Historic Maps
Free Online Drawing Lessons Self Explanatory