How would you know if the child is ready for school?

before ko ipasok ung daughter ko sa school, i tried her muna for a group tutorial para makita ko if anong response nya once mgkaroon sya ng mga classmates and teacher..and when she participated on class, and enjoying every class na meron sila, doon palang alam kong ready na sya. lalo pag excited sya to do her homework or any worksheet activities. And she's also very happy habang on going ang class.