It's never been easier to make video - most of us now walk around with a video recorder in our pocket...a mobile phone. If you haven't got a swish mobile with video capability then unless your still stuck on a traditional film camera, the chances are that you can record video on your camera. Use video as a tool to engage your little ones. Older children can make their own 'film' - have them record a scene that they play out amongst themselves. Record younger children singing or acting, or just playing. Demonstrate how you can record and play back. If you can show your video on a television then do that - that is certain to delight the children!
Record older children as they learn to read and record them explaining concepts to you. For eample, ask them what a volcano is, or how rain occurs. Really clever kids might know the answer, but if they don't, you might get some really funny explanations.
At ToucanLearn we encourage you to keep a daily diary for your little ones, but if you have children of a school age who can read or write, why not have them record a diary of their baby and toddler siblings? A diary kept by a young child of their younger sibling would make for a fascinating account, you would get a glimpse of their understanding of the world and interpretation of events. If your children are too young to be able to write, then how about trying to keep a recorded diary, making an audio or video recording each day? It's really easy to make audio and video recordings these days, using mobile phones, smartphones or laptops or computers with webcams.
Keeping a diary of a young baby from a siblings perspective would make for an interesting project for you, but would become an invaluable record for your children in years to come!