Here are some fun and helpful links to use at home: 

https://www.lexiacore5.com

https://web.stmath.com/entrance/

https://www.splashlearn.com

https://mysteryscience.com

https://www.getepic.com/students  (classcode: ZKM6385)

https://kids.nationalgeographic.com

https://www.youtube.com/user/ArtforKidsHub

https://www.gonoodle.com

Scholastic Weekly Lessons