A few that ring true from my four years of parenting (total expert):

Content matters. The quality of content is more important than the platform or time spent with media. Prioritize how your child spends his time rather than just setting a timer.

Curation helps. More than 80,000 apps are labeled as educational, but little research validates their quality (Hirsh-Pasek KPsych Science2015;16:3-34Google Scholar). An interactive product requires more than “pushing and swiping” to teach. Look to organizations like Common Sense Media (www.commonsensemedia.org) that review age-appropriate apps, games and programs.

Co-engagement counts. Family participation with media facilitates social interactions and learning. Play a video game with your kids. Your perspective influences how your children understand their media experience. For infants and toddlers, co-viewing is essential.