I find that the easiest subject to teach to all of the kids at once is history. I use a variety of different things to accomplish this. I made a video to give an overview of what we do in our homeschool with history and then since I forgot to include a fairly important element, I made a second video! I’ve only touched on what we do so feel free to ask clarification questions in the comments.
Here are links to give you more information about some of the products I mentioned:
Story of the World has 4 Volumes. We started with Volume 1 and went through it fairly slowly over about two years and are now about three quarters of the way through Volume 2 which takes you from the Fall of Rome to the Rise of the Renaissance. We use the book, the Activity Book, and Tests and Answer Key.
Nest videos and activity/colouring books…We use these for history and we also have their artist videos and New and Old Testament videos.
Brimwood Press – the products I spoke about specifically were Colour the Western World and Calendar Quest
Catapult made from popsicle sticks and a plastic spoon
Hopefully that gives you a bit of a better idea of how I approach teaching history to such a wide variety of ages and keep the older kids engaged and challenged while still including the younger ones.