reinforce through different forms. reading something means you remember reading it. writing it means you remember writing it AND remember reading it, because

reinforce through different forms. reading something means you remember reading it. writing it means you remember writing it AND remember reading it, because you read it as you write. same goes for hearing someone else speak versus saying it out loud yourself. with multiple sources of input, once is enough for me generally, rather than repeating the same input type multiple times.