Build Animations for students

We are creating a smart class software for it students from a LKG class to 12th class need a designer need an animation designer to design creative videos and animations for explaining The functioning of basic elements such as functioning of heart, kidney, photosynthesis, respiration etc. as well as geographical events, astronomical events, historical events, maths tutorials, chemical reactions and similarly other subjects. We need a good animation designer with a considerable experience in the field. Don't forget to provide us with links to your past work as it is an important judging criteria.