I have been doing a “Flipped Homework” where I play all of the songs I use in my K classroom, show the week’s book, etc. Example: https://www.youtube.com/watch?v=zW9vLqCXWKI
Still not too sure how to entirely gage the effectiveness BUT last week I checked back over the weekly letter subtest scores. One of the kids in my class who doesn’t have the best support system at home has been doing this homework before going home. The last 2 weeks when she has been doing the homework daily she has missed many fewer letters! Not perfect but much improved.