Early childhood is full of magic, growth, and milestones—and as an educator or caregiver, there’s nothing more rewarding than watching little ones blossom from newborns to preschoolers. This article will guide you through key developmental milestones from birth to age 5 while weaving in how the Birth to Five CDA® Credential 
Buy Now $399.00$299.00 supports you in nurturing each stage.
The Birth to Five CDA® Credential with Portfolio Review Buy Now $399.00$299.00is a comprehensive 120-hour online training offering from ChildCare Ed, tailored to equip #educators to support children across the full birth–5 age range. You’ll gain expertise in all eight CDA® subject areas and portfolio development—with supportive guidance along the way.CDA Certification Buy Now $399.00$299.00
Ready to level up? Explore the course here: Birth to Five CDA® Credential with Portfolio Review.
Plus, for quick reference, best practices, and detailed FAQ, check out: FAQ – Birth to Five CDA® Credential Buy Now $0.00.
For a broader overview and insights into why this credential matters, read: All Ages, All Smiles: Discover the New Birth-to-5 CDA® Credential!.
How do children develop from infancy through preschool?
In these earliest months, babies are rapidly developing motor, cognitive, language, and social-emotional skills. The CDC’s infant development guidance describes examples of learning, communication, and movement during the first year. You may notice them:
-
Lifting their head during tummy time and eventually propping up on arms
-
Following moving objects with their eyes
-
Smiling responsively and interacting with caregivers
-
Reaching out and grasping objects
Even before they say a word, infants are learning to communicate through expressions, coos, and cries. These examples are broad developmental guideposts, not a checklist or a diagnosis: children develop at different rates, and skills may emerge in a different order.
To make observations useful, record what you see and hear in context: the date, activity, child’s actions or words, and any support that helped. Look for patterns across routines rather than drawing conclusions from one moment. For example, note whether an infant reaches toward a toy during floor play or turns toward a familiar voice, then use those observations to plan responsive interactions. Share objective notes with the family and invite their perspective on what they notice at home. If a pattern raises a concern, discuss it respectfully with the family and follow your program’s procedures for connecting them with appropriate developmental screening or professional guidance; educators should not diagnose.
The toddler years are bursting with energy and discovery! Kids typically:
-
Walk, run, climb, and kick a ball
-
Say their first words and start combining simple phrases
-
Engage in pretend play—like feeding dolls or talking on a toy phone
-
Explore cause and effect (“If I drop the block, will it fall?”)
-
Begin basic toilet learning and self-feeding
Imaginative play and language development are hallmarks of this stage. During play, educators can model and extend communication without pressuring a child to perform: describe the child’s actions, pause for a response, offer words for objects and feelings, and follow the child’s interests. Repeated songs, shared books, pretend play, and everyday conversations provide meaningful opportunities to practice language and social interaction. Observe how the child communicates in different settings, including gestures and home languages, and partner with families to understand the child’s communication strengths.
Children’s skills do not appear on a fixed timetable, so compare observations over time rather than treating an age label as a deadline. When a child’s development or communication raises questions, share specific observations with the family and consult program procedures for next steps. For more practical ideas, see how songs and stories can encourage toddler language development and milestones to watch between ages 2 and 30 months.
Preschoolers are refining their social, cognitive, and fine-motor skills. The CDC’s preschooler development guidance describes examples across play, learning, communication, behavior, and movement. You may observe them:
-
Cutting with scissors, drawing shapes, and starting to write letters
-
Understanding and using sentences to express ideas
-
Playing cooperatively, taking turns, and resolving simple conflicts
-
Asking “why?” as they seek to understand the world around them
-
Following multi-step instructions like “After you wash hands, set the table.”
Encouraging social interaction through group activities and guided play fosters growth here. Offer open-ended materials, model turn-taking language, and allow children time to negotiate play; step in when support is needed rather than expecting every child to resolve a conflict independently. Document examples of problem-solving, communication, and fine-motor exploration across activities. A child’s performance can vary with familiarity, language, access, and context, so use observations to adapt the environment and discuss progress with families rather than ranking children against one another. See also ways to support preschool development across the whole child and how to plan activities around developmental milestones.
How can educators use milestone observations to support children?
Milestones aren’t just fun checkboxes—they show how young children build self-awareness, confidence, and skills that lay the groundwork for lifelong learning. Remember that milestones describe skills many children demonstrate by a given age; they are not deadlines. Read why milestones are ranges rather than deadlines for more on interpreting developmental variation.
The Birth to Five CDA® Credential gives you the professional tools to support each of these stages through strategies in:
-
Safe and healthy environments
-
Physical, intellectual, social, and emotional development
-
Family engagement and individualized learning
-
Observation and documentation for planning and assessment
-
And much more at CDA Certification
Buy Now $399.00$299.00
With 120 hours of structured training and support for creating a professional portfolio, you’ll deepen your understanding of how to foster each milestone moment.
For details in downloadable format—from training hours to portfolio tips—visit the FAQ – Birth to Five CDA® Credential Buy Now $0.00. For a broader explanation of the relationship between child development and the CDA, read Child Development and the Role of the CDA.
To grasp the “why” behind the credential launch and hear from educators’ voices, check out: All Ages, All Smiles: Discover the New Birth-to-5 CDA® Credential!.
Summary: How can educators support development from birth to age 5?
Milestones offer educators a framework for noticing emerging abilities across movement, communication, cognition, and social-emotional development; they are not a pass-or-fail test. Observe children during familiar routines and child-led play, document specific examples over time, and use what you learn to adapt activities and interactions. Ask families about the child’s interests, strengths, and experiences across settings, then share observations in clear, respectful language. When concerns persist, follow program procedures and encourage the family to consult an appropriate health or developmental professional. Responsive relationships, inclusive play opportunities, and ongoing collaboration help educators support each child’s individual path.
Embrace the joy of #early-childhood development by earning your Birth to Five CDA® Credential. Buy Now $399.00$299.00 Start now with the comprehensive course here: Birth to Five CDA® Credential with Portfolio Review.
Want to stay inspired and connected with tips, updates, and CDA® support? Follow ChildCare Ed on social media and join the community of educators empowering young minds
