Starfall.com - this site is a good reference for letters and reading.
Here's their blurb about it:
While the Cincinnati Zoo is closed and kids are home from school, let us help make your children’s hiatus from school fun and educational.
Join us for a Home Safari Facebook Live each weekday at 3pm ET where we will highlight one of our amazing animals and include an activity you can do from home.
Don’t have access to social media? No worries! All videos will be posted to this webpage and to our YouTube channel shortly after the Facebook Live ends.