Supporting Your Preschooler's Development

What to expect and how you can promote growth

New skills prepare 3s and 4s for school and beyond

As toddlers grow into their 3s and 4s, emotions begin to emerge and need managing. Independence becomes a new theme. Developmental milestones can come fast, as those uncertain toddlers bloom into bigger, more distinct personalities, and get ready to take on the world—and school.

Three- and four-year-old children are a wonder to behold. In such a time of rapid change, many parents look for reassurance that their little ones are still meeting typical developmental milestones—and to learn what they can do to support healthy child development. If there are delays, catching them early and getting intervention services is key.

Jane Squires, Ph.D., is an expert on early childhood development and identification of delays, and lead author of the Ages & Stages Questionnaires, Third Edition (ASQ-3). She stresses the importance of involving parents in the monitoring of young children’s development. After all, who knows your child better than you? Together, parents, pediatricians, and child care providers present a child’s best opportunities to meet developmental milestones and be ready for school and beyond. Below, Squires shares some information about what skills to watch for as your child grows, and provides activity ideas to support your child’s development along the way.

Children’s social-emotional skill development and competence is a particularly important indicator of school readiness. “Checking in on progress in these areas is an essential part of preparing for school,” says Squires. “Self-regulation and other social-emotional skills that help the child cooperate and listen in the classroom are often more predictive of academic and job successes than pre-academic skills.”

Development Milestones for Age 3

Here are some pointers on what parents should know about the development of three- and four-year old children compiled from the Centers for Disease Control (CDC).

At age 3:


How parents can help

Parents should make a priority of being present and engaged with young children. Read to them, interact, cuddle, create things together, take them places.

Squires suggests some simple activities parents can try with their children to enhance social-emotional development.

With a 3-year-old child:


School systems can also help

You can also call your local public elementary school to ask about free evaluation and to find out if your child can get services to help. They are required to provide this service to you free of charge. A team of professionals will evaluate your child and determine if early intervention or special education services may be needed. If no problem is found but you still believe there is a need for services, you can request an Independent Educational Evaluation (IEE) to be paid for by the school system, or have your child tested privately at your own expense. Knowing your rights, being your child’s advocate, and acting early are among your most important jobs as a parent.