The way I see Education

Your family members are heading in the right direction. There has to be large community to bring the kids up. Not only the deaf community but also hearing community. I think it would be better if each of your family members choose a different topic to communicate to him. It would be just like circulating "vast information" around him in the way he understands. The topics can be related to education as well as entertainment. When it comes to education, he can get started with basic maths, practical usages of science concepts and the basic grammer (most probably English). It will be a great idea to get him started with technical games (which basically means getting an exposure to technology). He can get started on assembling and dismantling objects, He can also play video games for a limited time. And I think he is already getting trained on sports by his father. When it comes to entertainment or arts, he can go for painting, pottery, craft (paper/cardboard), carpentry (he is still young for this, but he can definitely watch it), make small animations. Make sure, you use a lot of images, graphics, drawings to explain him. You might have to use images, drawings and graphics to explain the concepts of maths to him.