These animations will be uploaded and installed into an online school, which will have multiple pages. It's 60% text, with 40% images moving around. There is little to none character animation required. This is NOT high end animation. What you will need to do is be able to create the animated slides.
There will be maybe 20-30 animations in all, I will pay the same price for each.. So, you can work as much or as little as you want.
Also, there is existing examples, of exactly what needs to be done, so, you can use them as a source to get info from. You just can't copy the content. But, the content will be very very similar.
Like copying a Hamburger from McDonalds. All the same things are there, the wrapping, the tray, the meal-deal, just, can't be exactly the same.
Most will be JPG or GIF images, or I will leave it up to you which technology you want to use. It will most likely just be in Flash, or in HTML5. Voice will be needed.
All is flexible, except that it needs to look very similar to existing solutions, which makes your job easier