What is post-it challenge 1?

Give each learner a pad of Post-it notes Set a time limit and ask them to write one fact, idea or keyword per note After the time is up, learners sort their notes into categories Discuss what they remembered, what they forgot, and what they got wrong

Post-It Challenge 1 | Rainbow Curriculum

How it works

Post-it Challenge 1 is a retrieval practice activity that makes recall visible. Each learner writes one piece of information per Post-it note. The time pressure and physical act of writing create urgency and engagement.

After the generation phase, the sorting phase is where deeper thinking happens. Learners arrange their notes into categories. These categories might be given by the teacher or created by the learners themselves. The act of sorting reveals how learners organise their knowledge, which connections they see, and which they miss.

The discussion phase completes the activity. Learners compare their collections. What did most people remember? What did only one person recall? What was remembered incorrectly? These conversations help learners identify gaps in their knowledge and correct misconceptions.

Post-it Challenge 1 works as a lesson starter to activate prior knowledge, as a plenary to consolidate learning, or as a revision tool. The physical, moveable nature of Post-it notes makes the activity more engaging than simply writing a list, because notes can be rearranged, grouped, and regrouped.

Classroom example

A Year 8 Science and Technology class in a Conwy school is revising forces. Each learner has two minutes to write everything they know about forces, one fact per Post-it. After the time is up, they sort their notes into categories: types of forces, effects of forces, measuring forces, and balanced versus unbalanced. One learner has twelve notes but nothing about friction. Another has notes about air resistance and drag but has categorised them separately, leading to a useful discussion about whether they are the same force.

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Curriculum for Wales connection

Post-it Challenge 1 develops the "Reflect" strand of thinking skills by building metacognitive awareness about what learners know and do not know. It supports cross-curricular literacy through recall and organisation of knowledge, and works across all AoLEs as a versatile retrieval tool.

Rainbow Curriculum's Thinking Tools lens helps you plan where retrieval practice is embedded across your curriculum, ensuring learners regularly revisit and consolidate prior learning.

Tips

One fact per note is essential. If learners write multiple things on one note, they cannot sort or rearrange.
Keep the time limit tight. Two to three minutes creates productive pressure.
A common pitfall: only using Post-it challenges for recall. The sorting phase is where the higher-order thinking happens.
Use different coloured notes for different categories or confidence levels.
Combine with Post-it Challenge 2 for a more structured variation.

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A visual organiser where ideas branch outward from a central topic, using colour, images and keywords to map connections and generate new thinking.

Post-it Challenge 2

A collaborative retrieval activity where groups build on each other's knowledge by adding Post-it notes to a shared display, filling gaps and correcting errors as they rotate between stations.

Snowball Challenge

A collaborative activity where ideas grow progressively as learners work first alone, then in pairs, then in fours, building and refining their thinking at each stage like a snowball gathering mass.