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Session 3. Structuring a 45-Minute Lesson
Objective. Build a 45-minute lesson sequence with five stages, a realistic time budget, and a clear decision about what to cut when time runs short.
A 45-minute lesson is short, and every minute you do not plan is a minute that something else takes. Most teachers know what they want to teach; the lesson goes wrong in the middle, when the explanation runs long, the pupils need more practice, or the handout takes five minutes to give out. This session helps you see where time goes and design a lesson that survives a normal day in a normal class.
Key ideas
The five stages
- Opening and recall: wake up what pupils already know and set the goal of the lesson.
- Input: explain one new idea in small steps, with examples.
- Guided practice: pupils try it while you watch and help.
- Independent practice: pupils work alone on a similar task.
- Closure: check what was learned and say what comes next.
A time budget that adds up
- A sample split: opening 5, input 10, guided practice 10, independent practice 12, closure 5 = 42 minutes.
- The other 3 minutes are for transitions: handing out paper, moving to pairs, settling down. Write them into the plan.
- Write the minutes next to each stage. A plan without minutes is a wish.
Gagne and Rosenshine as supports, not scripts
- Gagne's events of instruction (gain attention, state the goal, recall prior learning, present, guide, practise, give feedback, assess) match the five stages.
- Rosenshine's principles: review daily, teach in small steps, ask many questions, guide practice, check understanding.
- Use them as a checklist for your plan. Not every lesson needs every step.
What to cut when time runs short
- Decide before the lesson, not in a panic at minute 38.
- Cut first: material not linked to the objective, long copying from the board, routine checks that can happen after class.
- Shorten, do not delete: independent practice (fewer exercises) and input (fewer examples).
- Protect guided practice and closure. They tell you whether the lesson worked.
A 45-minute lesson, sample split
Transitions: where minutes leak
Between stages there is a small gap: books are closed, sheets are handed out, pupils move into pairs. In a class of 30 each gap can easily take two or three minutes, and a lesson with five stages has four of them. Nobody notices, because no single gap feels big, yet together they can eat the whole closure.
Plan transitions like any other part of the lesson. Put materials on desks before the bell, ask pupils to turn to a page while you speak, and give one short signal such as a count to five. Tell pupils the pair or group task before they move, not after. A rehearsed routine, repeated every lesson, makes a transition take under a minute.
Input in small chunks
Pupils can only hold a few new things in mind at once. Miller (1956) described the limits of short-term memory, and Sweller's work on cognitive load shows why long explanations leave many pupils behind: new information piles up before it can be used.
So split the input stage. Teach one step, show one worked example, then ask a short question that every pupil answers on paper or a mini-board. Then teach the next step. Three chunks of about three minutes with a check between them usually work better than one ten-minute talk, and they show you early who is lost.
Examples from the classroom
The reader handout
Scene. Malika teaches Grade 3 Uzbek reading to 28 pupils in Fergana. Giving out the readers and worksheets used to take 4 minutes and the class became noisy. Now two pupils on duty put the worksheets on each row before the bell, and the readers stay on the desks. The handout takes under one minute, and she gains 3 minutes for pupils to read aloud in pairs.
Insight. Transitions are a plan item, not a side effect. Preparing materials before the bell turns lost minutes into practice time.
The 25-minute explanation
Scene. Aziz teaches Grade 8 physics in a Russian-medium school in Tashkent, 34 pupils. He used to explain Ohm's law for 25 minutes and then found that half the class could not start the exercises. He now teaches in three chunks of about 6 minutes. After each one, pupils write the answer to one question on a half-sheet and show it. He sees mistakes at minute 7, not at minute 40.
Insight. Short input chunks followed by a check keep the load manageable and let the teacher react while there is still time.
The pre-marked cut line
Scene. Dilnoza prepares a Grade 6 history lesson in Samarkand about how Navruz was celebrated. Her plan has a pencil line at minute 35: if pupils have not finished the group poster by then, the poster stops and everyone writes a 3-minute exit ticket. On Tuesday the class is slow, she draws the line, and the ticket shows that 24 of 30 pupils can name two Navruz customs.
Insight. Deciding what to cut before the lesson protects closure, the stage that tells you whether the objective was reached.
Common pitfalls
- Planning only the content and leaving out the minutes, so the last stage is whatever time is left.
- Counting transitions as zero minutes, so the plan always adds up to more than 45.
- Spending so long on input that guided practice, where mistakes are seen and corrected, shrinks to one example.
- Treating the five stages as a fixed script, even when a revision lesson needs no new input.
Order and Trim the Lesson
- Take the lesson cards 'Grade 5 Mathematics, Samarkand: Adding Fractions' from the Activity Kit. There are 8 cards, each with a segment and its minutes. The cards add up to 60 minutes.
- Alone (10 min): number the cards in the best teaching order and name the stage of each card.
- In groups of three (20 min): the lesson is 45 minutes. Decide which cards to cut or shorten, and write the new minutes so they total 45 including transitions.
- For each cut write one line: why is this safe to cut? Then say what you would do if the class needed 5 more minutes on guided practice.
Your facilitator will guide you through this activity in the session.
Questions to discuss
- Which card did your group argue about most, and what decided it?
- Where in your own lessons do minutes disappear without a plan?
- What is your rule for cutting: what goes first, and what never goes?
Reflect
- Think of your last lesson that ran over. Which stage was squeezed, and what did pupils lose?
- Which transitions in your classes take longer than you plan for?
- What could you move out of lesson time, such as collecting notebooks, so practice gets more minutes?
Try it tomorrow
- Write minutes beside every stage of tomorrow's plan and check that the total, including 3 minutes for transitions, is 45.
- Prepare materials before the bell in one lesson and note how many minutes you gain.
- Mark a pencil cut line at about minute 35 and decide now what you will drop if you have not reached it.
Further reading and links
Plan five stages with minutes, include transitions, and decide in advance what you will cut.