In the educational technology area, I start my thinking from three part: teacher, parents and students. In each part, I asked what, why and how questions to narrow down my thinking. To be more specific, in the teacher part, my main focus is on how teacher teach with technology. For the parents part, how parents’attitude and behavior influence the use of technology is highly concerned. For the students part, I pay more attention on how they learn and the outcome of learning with technology. Here is the map of my brainstorm.
loveeducation 
Nice brainstorming Yuting! Visuals can be so helpful. I think you are ending up focused on the part about students, looking at your later post.
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I suggest you might explore how parent use technology tools or media to educate children at home, which seems to be interesting.
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