Designing for inclusion means solving a design problem that is causing an ability mismatch between the user and current existing product.

I chose to redesign school bells for those with hearing impairments.

Designing for diversity means solving a design problem so it can cater to greatest amount of different people.

I choose to redesign subway cars for those with movement impairments

Designing for inclusion means solving a design problem with a solution that will be usable for the greatest amount of different people while ensuring to include a certain group.

I chose to expand on my school bell design that was designed for the inclusion of those with hearing impairments