Kindergarten is more work than it used to be, which means it’s never too early to start preparing your baby for being ready for school.

Nearly 85 percent of a child’s brain development occurs before the age of 4, which means moms, dads, grandparents and caregivers are a young child’s best resource for being ready.

When your big kid is 5 and close to starting kindergarten, this guide can be a checkup to help you see if he’s ready to make the grade for school.

Click here to download the graphic.