Flash Visuals of Concepts to Aid Teaching

Problem : I was teaching the kids at Deepam the concept of ‘Force’ , some months ago. I had prepared 4 simple examples t0 help students understand , better. I used the blackboard , ‘told’ them examples – Didn’t help them much to ‘visualize’. 
I got a couple of kids to ‘enact’ what i was ‘saying’ – the kids were able to understand easily. So, clearly, the problem is with ‘teaching methods’.
Solution : Develop flash visuals for all concepts from the LKG to Class 12 and beyond.
If someone is aware of any free content on the web, please do let me know.