Links:
www.everykidinapark.gov/
https://cobb.mackinvia.com
​https://www.google.com/maps/about/treks/#/grid
https://nearpod.com/
https://info.flipgrid.com/
https://ditchthattextbook.com/2017/06/02/catch-the-flipgrid-fever-15-ways-to-use-flipgrid-in-your-class/
http://www.ala.org/aasl/standards/best
https://www.commonsensemedia.org/