Elementary
Storyline Online (always free): Books read out loud by authors/famous people: https://www.storylineonline.net/
Scholastic: https://classroommagazines.scholastic.com/support/learnathome.html
Learning A-Z: https://www.learninga-z.com/
www.funbrain.com - Play games while practicing math and reading skills
www.reading.ecb.org - Into the book - Go into the book to play games that practice reading strategies
www.starfall.com - Practice your phonics skills with these read along stories
http://www.mathscore.com/ Math practice from counting to algebra and geometry
https://www.abcya.com/ - Math and reading games
https://pages.sumdog.com/ - Math and spelling practice for grades K-8
https://www.splashlearn.com/ K-5 math learning program
Social Emotional
https://www.thepathway2success.com/ - has social emotional activities
www.commonsense.org - SEL content
https://www.makebeliefscomix.com/ - make your own comics about feelings, etc.
Visual
Accessibyte makes fun, funky, fully accessible apps for users who are blind, visually impaired, deaf, dyslexic or have other reading difficulties: https://www.accessibyte.com/stay-safe
OT
LittleWriter is a free app to help develop handwriting
Doodle Buddy is an app that allows students to draw and work on dexterity