Evidence Guide
11 min read

Cognitive Load

How lesson design shapes what a working memory can carry — and the small design choices that free up thinking for learning.

Reading time
11 min read
Age range
All primary (EYFS–KS2)
Evidence level
High
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Working memory, attention, executive function and cognitive load — threaded into one guided journey.

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Working Memory

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Cognitive load theory rests on working memory limits — the two guides sit alongside one another.

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Executive Function

Why this is relevant

Extraneous load competes with the executive resources children need to plan and monitor their work.

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Attention

Why this is relevant

Well-designed lessons protect attention by keeping load within reach.

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Processing Speed

Why this is relevant

Reducing load matters most when a child processes at their own pace — it prevents small delays becoming lost learning.

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Expressive Language

How children put their thoughts, ideas, needs and experiences into words — and what adults can change so that more children can show what they think and know.

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Vocabulary & Word Knowledge

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Speech Sounds & Speech Clarity

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Emotional Regulation

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