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Day 11 / 60Week 2 · Learning ScienceLesson

Cognitive Load Theory

Learning goal

Identify and remove unnecessary load from a learning experience.

Estimated time

30 minutes · self-paced

Warm-up

Why is it hard to follow a recipe while someone reads the news at you?

Main lesson

Three kinds of load

diagram

Intrinsic (the task's own difficulty), extraneous (bad design), germane (effort that builds schemas). Your job: cut extraneous, manage intrinsic, protect germane.

Working memory is tiny

Roughly four chunks at a time. Every decorative animation, split-attention layout and unexplained acronym spends that budget.

  • Chunk content into steps
  • Put labels on the picture, not in a legend
  • Remove background music behind narration
  • Fade worked examples into independent practice

Expertise reversal

example

What helps novices (worked examples, heavy scaffolding) slows experts down. Design for the actual audience.

Examples from practice

  • A safety diagram with labels moved onto the image, cutting error rates in practice tasks.

Interactive quiz

A slide has narration plus the same text on screen. What is this?
Which load should you deliberately protect?

Reflection

Where do you overload learners with your own writing style?

Daily challenge

Take one busy slide and remove 50% of its elements without losing meaning.

Portfolio task

Add the slide before/after to your 'Before / After' portfolio page.

AI design tools

Ten assistants for this lesson

AI Mentor

Instructional design questions only

Hi! I'm your ID Mentor. Ask me anything about cognitive load theory — or instructional design in general.