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Session 1. Sequences That Help Memory
Objective. Redesign a two-to-four week sequence so that key ideas are retrieved, returned to after a gap, practised in a mix and introduced through worked examples.
Most of us were taught that a good lesson ends with pupils getting the exercises right. Yet the exercises on Thursday say little about what pupils will remember in November. This lesson shows how to design the weeks around a topic, not just the lesson, so that important ideas are pulled from memory, returned to after gaps and used in mixed company. The changes are small and mostly swap what you already do, but they change what stays in pupils' heads.
Key ideas
Design for what lasts
- Pupils can look secure at the end of a lesson and still forget most of it in two weeks. A designed sequence plans for forgetting instead of being surprised by it (see course 5.1 Understanding How Students Learn).
- Methods that feel smooth, such as re-reading or ten identical problems in a row, often give a false sense of progress to pupils and to teachers.
- Design at the level of weeks, not single lessons: decide when each key idea will come back before you teach it the first time.
Retrieval and spacing
- Retrieval means pupils pull an idea out of memory with no notes: three to five questions at the start of a lesson. The effort of recalling strengthens memory more than looking at the answer again.
- Spacing means returning to an idea after a gap of days and then weeks, instead of repeating it all in one block. Some forgetting between returns is a helpful difficulty, not a failure.
- Keep retrieval low-stakes and follow it with feedback: pupils check their own answers and fix errors. Marks and rankings turn practice into a test and raise anxiety.
Interleaving
- Blocked practice gives ten problems of one type, so pupils can use the same method without thinking. Interleaved practice mixes types, so pupils must first decide which method fits.
- Start a new idea with a short blocked set so that pupils can get it right. Once it is secure, move to mixed sets that also include older topics.
- Mixed practice feels harder and pupils may say they dislike it. Explain why, and judge it by later results, not by how smooth it feels today.
Worked examples and fading
- For a new method, novices learn well from studying a complete solution with each step explained, before solving alone. Searching for the method on their own overloads working memory.
- Then fade the support: a full example, then one with the last step missing, then two steps missing, then a full problem. Ask pupils to explain why each step is done, not only what it is.
- Worked examples suit new material. As pupils become fluent, fewer examples and more problems work better (see Session 3).
Fading a worked example
Why smooth practice can fool us
When pupils do ten identical exercises, they get nearly all right, and both pupil and teacher feel progress. But the pupil may only be copying the last example. The feeling of fluency during practice is not the same as the ability to recall and choose a method a month later. Psychologists Robert and Elizabeth Bjork call conditions that feel harder but help long-term learning 'desirable difficulties'.
That is why this design asks you to judge a sequence by what pupils can do after a gap, in a mixed set, with no notes. A small drop in today's accuracy can be a good sign if the later results are better. Always test the claim in your own class instead of trusting it blindly.
A two-week sequence with planned returns
Write the key ideas of the next two weeks on a card. Beside each, plan three appearances: the first teaching, a no-notes starter two or three days later, and a short return a week or two after that, perhaps inside the starter of a later lesson or a Friday mixed set. You are not adding lessons; you are moving 3 to 5 minutes from repeated drill to recall.
Keep the feedback loop short. After the starter, show the correct answers and let pupils fix their own. Count how many missed each question, because the questions most pupils miss tell you what to re-teach and what to bring back first.
Examples from the classroom
The three-question starter
Scene. Aziz teaches Grade 8 physics in Fergana. Instead of starting with a new topic, he writes three questions on the board about last week's lesson on density and gives four minutes, no books. Pupils mark their own answers while he reads the correct ones. He notes that 18 of 34 missed question 2, so he re-explains it for two minutes before moving on.
Insight. Retrieval with immediate feedback tells the teacher what to re-teach while it is still cheap to do so.
Friday mixed set
Scene. Malika teaches Grade 4 Uzbek language in Bukhara. During the week pupils practise one spelling rule per day in blocks. On Friday she gives eight words that mix all four rules and asks pupils to write the rule number beside each word before spelling it. Pupils say it is harder than the week's work, and she explains why that is useful.
Insight. Interleaving makes pupils choose the rule, which is the skill they need when writing freely.
Fading fractions of a quantity
Scene. Dilnoza in Samarkand teaches Grade 6 'a fraction of a quantity'. She shows one fully solved example with each step explained, then one with the last step blank, then one with two steps blank, and only then a full problem. Pupils say aloud why each step is done. Weaker pupils get the half-finished version, and nobody receives twenty identical problems.
Insight. Worked examples with fading reduce the load on novices while still ending in independent solving.
Common pitfalls
- Turning every starter into a graded quiz, which raises anxiety and makes pupils hide what they do not know.
- Telling the answer before pupils have tried, which removes the effort that strengthens memory.
- Mixing problem types before the new idea is secure, so pupils only guess.
- Keeping worked examples for pupils who are already fluent, which slows them down.
Re-sequence a Block
- Open the Activity Kit: a SAMPLE 8-lesson Grade 5 mathematics block on perimeter and area, with its practice and test. Read it in trios (5 min).
- Trios (15 min): using the five moves on the guide page, mark what the block does not have. Agree the three changes with the biggest effect for the least extra lesson time.
- Trios (15 min): redesign. Fill the spacing planner for three key ideas, write three no-notes starter questions for lesson 3 and sketch a four-step fading ladder for composite shapes.
- Second activity, pairs (10 min): take a real 2-week plan of your own and apply ONE move from the guide. Write the exact starter questions or the spaced return.
- Groups (10 min): compare. Where did you find the time? Agree what you removed or shortened to make room (for example, part of the repeated drills).
- Alone (5 min): write your school-based task from the Kit.
Your facilitator will guide you through this activity in the session.
Questions to discuss
- Which move gave the most for the least lesson time? Why?
- What did you remove to make time, and are you comfortable with that choice?
- How will you explain to pupils or parents why mixed or recalled practice feels harder?
Reflect
- In your last unit, which idea was taught once and never returned to?
- Which practice sets in your textbook are blocked? Which could be mixed?
- What worries you about using class time on recall?
Try it tomorrow
- Begin your next three lessons with a 3-question, no-notes starter on a previous lesson and note how many pupils miss each question.
- Choose one key idea from this week and write when it will return in two weeks and in six weeks.
- Replace the last half of one blocked exercise set with a mixed set that includes an earlier topic.
Further reading and links
Plan when each idea will come back, make pupils recall before they re-read, mix once secure, and show a worked example before the problem.