Looking for advice one where you ladies get printables and what not for educational activities at home?

Our nighttime routine is pretty short right now but with DD1 staying up later than DD2, I'd like to be more productive with that extra hour. (time between when DD2 goes to bed and DD1 goes to bed).

I was thinking theme days, based on the following:

reading
writing
math
food/baking

Basically, I'm trying to add some education to our evening routine to discourage falling back on TV like we have done right now.

I have some early reading kits, and plenty of kid friendly recipes...but I dont have much for letters/writing and math. Would love any input! or others ideas who have been in this situation!