Pinterest boards

Here are some of good ones I found:
 
Free Online STEM Resources - https://igamemom.com/online-resources-stem-activities-for-kids/
Apps for Teachers - http://www.edudemic.com/70-best-apps-teachers-students/ 
Teacher-related Technology- https://www.pinterest.ca/source/teachertechnotopia.com/
Classroom word puzzles - https://www.pinterest.com/avidreaderadrea/fun-word-puzzles/
YouTube Channel of Science Videos - https://igamemom.com/youtube-channels-of-fun-science-for-kids/