5 Parenting Mistakes That Make Preschoolers Act Out (And How to Fix Them)

LiYing Yan Published on Views: 3

You’re at home, and your little one is bouncing off the couch like it’s a trampoline. You laugh it off—kids will be kids, right? But fast forward to preschool, and the teacher says your child won’t sit still during circle time. You’re puzzled. What changed? The truth is, nothing changed—except the rules. And that’s the problem.

I recently sat in on a kindergarten principal’s talk, and she dropped some hard truths that every parent needs to hear. Here are the five biggest mistakes we make with our preschoolers—and how to turn them around.

Mistake #1: Not Setting Clear Expectations Early

We often let small things slide—like jumping on the couch or ignoring bedtime—because we’re tired or just want peace. But those little moments teach your child what’s acceptable. When they get to school, they’re suddenly told to sit still, raise hands, and follow rules. And they think, “Why now? Nobody told me this before.”

That’s the gap. You didn’t set a clear target from the start. So, your child doesn’t have a roadmap for behavior. The fix? Start small. Pick one or two rules at home and stick to them. Make them simple and repeat them often. Consistency is your best friend.

Mistake #2: Letting Your Child Be the Boss

It’s easy to give in to a whining toddler. But when you let your child dictate everything—from snacks to screen time—they start to think they’re in charge. Then, in a classroom, they resist following anyone else’s directions. It’s not that they’re bad kids; they’re just confused about who’s leading.

Remember, you’re the parent. It’s okay to say no. It’s okay to set limits. In fact, kids thrive when they know boundaries. So, next time your preschooler demands another episode, calmly say, “We agreed on two shows, and now we’re done.” Then, stick to it—even if they melt down.

Mistake #3: Going with the Flow (and Expecting Different Results)

“I kind of just let him do his own thing,” one dad admitted. And I get it. We’re all tired. But here’s the thing: if you don’t have goals for your child’s behavior, you can’t be surprised when they don’t meet them. Imagine planting a garden without any plan—you just toss seeds and hope. You wouldn’t expect a neat row of tomatoes, right?

So, set simple goals. Maybe it’s “use words instead of hitting” or “put toys away before dinner.” Write them down. Share them with your child. And revisit them often. When your child knows what’s expected, they’re more likely to meet those expectations.

Mistake #4: Expecting School to Fix Everything

We send our kids to preschool thinking teachers will handle the discipline. But the principal’s message was clear: school can’t do it alone. Teachers can guide, but real behavior change starts at home. Your child learns more from watching you than from any lesson plan.

So, if you want your child to listen—show them what listening looks like. Put down your phone when they talk. Use a calm voice. And when you make a mistake, own it. That’s modeling courage. And it’s way more powerful than any sticker chart.

Mistake #5: Forgetting That You’re Still Learning

Here’s the biggest secret: good parenting isn’t about having all the answers. It’s about being willing to learn. That principal even said she’s still changing—and she’s a pro. So, give yourself grace. You won’t get it right every time, and that’s okay.

Start by noticing one area where you’ve been too laid-back. Maybe it’s screen time or bedtime. Pick one thing, and make a small change this week. You’ll be surprised how quickly your child adapts. And remember, every tiny step you take is a step toward raising a confident, well-behaved kid.

Your Turn

Parenting is a journey, not a sprint. And you’re already on the right track by seeking advice. So, what’s one rule you’ll start implementing today? Share in the comments—I’d love to hear from you.

parenting tips Kindergarten Readiness preschool behavior discipline