Observing, Documenting, and Using Play-Based Assessment

Why Observation Matters in Play-Based Learning

When children play, they reveal what they know, what they are working toward, and how they think. Your job as a child care provider is not simply to watch—it is to observe with purpose, record what you see accurately, and use that information to support every child's growth. This process is called play-based assessment, and it is one of the core professional skills measured by the CDA credential (Functional Area 5: Cognitive Learning).

Play-based assessment does not rely on tests or formal sit-down tasks. Instead, you gather evidence of development while children engage in natural, child-directed play. Because the setting is comfortable and self-chosen, children often demonstrate their true abilities more fully than they would in a structured test.

Anecdotal Records: Writing What You See

An anecdotal record is a brief, written account of a specific incident you observed. The golden rule is: record behavior, not interpretation. Write exactly what the child said and did, in the order it happened, without judging or labeling.

Objective language describes visible actions and direct quotes:

"Mia picked up the red block, placed it on top of two stacked blocks, and said, 'It's a tall tower.'"

Non-objective (inferential) language inserts your opinion:

"Mia was excited and proud of her block tower."

You do not know Mia is excited—you saw her smile and heard her words. Save interpretations for a separate analysis section, clearly labeled.

A complete anecdotal record includes:

1. Child's name or code (to protect privacy)

2. Date and time

3. Setting and activity (e.g., block center, free play)

4. Verbatim or near-verbatim quotes when possible

5. Sequential description of actions, from start to finish of the episode

Keep your language specific. "Held a crayon" is more useful than "used art materials."

Developmental Checklists: Matching Behavior to Milestones

A developmental checklist is a structured tool that lists observable behaviors linked to age-typical developmental milestones. Tools such as the Ages & Stages Questionnaires (ASQ) provide a recognized framework organized by domain: communication, gross motor, fine motor, problem-solving, and personal-social.

To complete a checklist accurately:

• Base every item only on behaviors you directly observed during the play episode or in recent, documented observations.
• Do not check an item because you believe the child can do it—check it only if you saw it.
• Note the domain for each checked item so your interpretation is grounded in specific developmental areas.

Writing an Interpretation Statement

Once your checklist is complete, you write a two-paragraph interpretation:

Paragraph 1 — Demonstrated Strengths: Describe what the child showed competence in. Cite at least two specific observed behaviors as evidence. Connect each behavior to the developmental domain it represents.

Paragraph 2 — Next Learning Opportunity: Identify one area where the observation suggests the child is ready for the next step (the zone of proximal development). Describe a concrete, play-based strategy a caregiver could use to scaffold that growth.

This structure keeps your interpretation honest—grounded in evidence—and immediately actionable for planning.

Using Observations to Revise Activity Plans

Observation data loses its value if it stays on paper. The final professional step is translating findings into planning changes. When you revise an activity plan:

• State the specific observation that drove the change (e.g., "Anecdotal note 3/12: Jaylen sorted objects by color but not yet by size").
• Describe the modification (e.g., add size-sorting containers to the manipulatives center).
• Explain how the modification connects to the identified next learning opportunity.

This closed loop—observe, document, interpret, plan—is the foundation of responsive, individualized care and is directly aligned with CDA Competency Standards.

Privacy and Professionalism

All observation records are confidential. Use child codes or first names only in shared classroom documents. Store physical records securely and follow your program's policy on digital records. Never share identifying observations on social media or with unauthorized parties. This is both an ethical obligation and, in most states, a legal one.

Safety Note

During live or video observations, your focus must remain on the whole group even while you are writing. In a live setting, never allow note-taking to distract you from supervising children's safety. Use brief shorthand during the episode and expand your notes immediately afterward. If a safety concern arises—a child in distress, a fall, or a conflict—stop writing and respond first.