30–50 monthsSpeakingCommunication and Language: Speaking
Questions why things happen and gives explanations. Asks e.g. who, what, when, how.
Observe whether the child: questions why things happen and gives explanations. Asks e.g. who, what, when, how.
What it looks like
Three ways this behaviour shows up as a child grows. Each level includes everyday moments to watch for.
Emerging
Just starting
The child sometimes asks “why/how/who/what/when” but questions may be repetitive or not connected to a real information need; explanations are brief or vague.
What you might see
When something surprising happens (e.g., a toy breaks), the child reacts but does not ask “why” or “how”.
The child listens to an explanation but does not ask follow-up questions to understand more.
The child states outcomes (“It’s wet”) without attempting to explain causes (“It rained”).
The child asks “why?” repeatedly as a general prompt, but does not appear to listen for the answer or changes topic quickly.
The child uses a question word in a mismatched way (e.g., “Who is raining?”) while still showing curiosity.
The child attempts explanations with placeholders (e.g., “Because… um… because”) when asked.
Expected
On track
The child asks purposeful questions about familiar events and can give simple explanations based on immediate experience, often with adult prompting or modelling.
What you might see
The child asks a focused question about a routine (e.g., “When we go?”, “Who coming?”) and waits for the response.
The child gives a simple explanation tied to observation (e.g., “It fell because I bumped it”, “It’s dark because night”) with support.
The child asks “how” in practical contexts (e.g., “How open it?”) before trying again.
Exceeding
Going further
The child regularly questions why things happen and gives understandable explanations, using question words (who/what/when/how) to clarify and extend understanding.
What you might see
The child asks meaningful “why” questions about events (e.g., “Why the ice melt?”) and engages with the answer.
The child explains a simple cause (e.g., “We’re late because we couldn’t find shoes”) in a way a listener understands.
The child uses “when/how/who/what” to clarify plans and stories (e.g., “When will Nana come?” “How did it break?”).
The child offers an explanation and then tests it in play or talk (e.g., “If we push hard it will fall” and then tries different pushes).
The child gives multiple linked reasons (e.g., “It’s slippery because it rained and there’s mud”) or asks follow-up questions.
The child helps a peer understand (e.g., “It tipped because it was too heavy”) and invites their questions.
Try this at home
Small everyday moments where you can notice this behaviour without setting up anything special.
During a small everyday event (spilled drink, dropped tower), ask “Why did that happen?” and notice whether your child attempts a cause-based explanation.
While reading a picture book, pause at an event and ask “Why do you think they did that?” then observe whether your child asks their own “why/how/who/when” questions.
In outdoor play, notice whether your child asks “why” about natural events (wind, rain, shadows) and whether they listen for your answer.
During cooking or building, ask “How can we make it work?” and watch for your child asking “how” questions or giving explanations about steps.
At transition times, listen for planning questions (who/when/what) that show your child is trying to understand what will happen next.
Connected behaviours
Behaviours that scaffold, follow, or co-emerge with this one.
The framework source and supporting developmental research.
Framework source
Development Matters in the EYFS (DfE, 2012), Communication and Language: Speaking (30–50 months).
This construct is framework-native and reflects growing causal curiosity and explanatory talk in the preschool years.
Developmental research
Vygotsky, L. (1978). Mind in Society: The Development of Higher Psychological Processes.
Sociocultural theory frames questioning and explanation as tools for shared reasoning and learning within guided interaction.
Five-level rubric (detailed)ShowHide
The full progression underlying the three levels above. Used by the platform’s reasoning agent when planning activities and observations.
Not Yet
The child rarely asks explanatory questions or offers explanations; talk tends to describe what they see/do without exploring causes, reasons, or timing.
When something surprising happens (e.g., a toy breaks), the child reacts but does not ask “why” or “how”.
The child listens to an explanation but does not ask follow-up questions to understand more.
The child states outcomes (“It’s wet”) without attempting to explain causes (“It rained”).
Emerging
The child sometimes asks “why/how/who/what/when” but questions may be repetitive or not connected to a real information need; explanations are brief or vague.
The child asks “why?” repeatedly as a general prompt, but does not appear to listen for the answer or changes topic quickly.
The child uses a question word in a mismatched way (e.g., “Who is raining?”) while still showing curiosity.
The child attempts explanations with placeholders (e.g., “Because… um… because”) when asked.
Developing
The child asks purposeful questions about familiar events and can give simple explanations based on immediate experience, often with adult prompting or modelling.
The child asks a focused question about a routine (e.g., “When we go?”, “Who coming?”) and waits for the response.
The child gives a simple explanation tied to observation (e.g., “It fell because I bumped it”, “It’s dark because night”) with support.
The child asks “how” in practical contexts (e.g., “How open it?”) before trying again.
Secure
The child regularly questions why things happen and gives understandable explanations, using question words (who/what/when/how) to clarify and extend understanding.
The child asks meaningful “why” questions about events (e.g., “Why the ice melt?”) and engages with the answer.
The child explains a simple cause (e.g., “We’re late because we couldn’t find shoes”) in a way a listener understands.
The child uses “when/how/who/what” to clarify plans and stories (e.g., “When will Nana come?” “How did it break?”).
Reflexive
The child sustains back-and-forth reasoning with questions and explanations, checks ideas, and can offer alternative explanations or evidence from past experience.
The child offers an explanation and then tests it in play or talk (e.g., “If we push hard it will fall” and then tries different pushes).
The child gives multiple linked reasons (e.g., “It’s slippery because it rained and there’s mud”) or asks follow-up questions.
The child helps a peer understand (e.g., “It tipped because it was too heavy”) and invites their questions.
