Can I make a suggestion or two?
1. Have materials available for her in a bin. BUT don’t ever pull them out yourself. If she asks, go right ahead, but only on the days when she suggests it without prompting from you.
2. The moment she is done with an activity just be done. Drop it. No “let’s just finish this page”. Remember she is little.
3. Don’t replace her time in play both imaginative, messy, and outdoor with sit down school work. Even if she wants to spend lots of time sitting with workbooks or sit down school. She’s too young to know what is a healthy way to spend large quantities of her time. Just like you wouldn’t let her eat large amounts of sweets, guard against letting her spend too much time sitting down doing academics at such a young age.
🙂 I do have some experience along the entire spectrum of readiness. Of the 9 going on 10 kids I’ve had later readiness, readiness at 6, and even a child who taught himself to read chapter books at age 3.5 without input from me.