On the board you can see three different questions and a paper tally with marks counted in groups of five. First question: which of the three is most interesting to YOU? Second question: how many marks are in that tally, and what is the quick way to know without counting one by one?
Display the three candidate questions on the IWB before pupils settle: 'What is your favourite school dinner?', 'How do you get to school?', 'Which sport do you play most often?'. Take three hands-up answers on the interesting-question vote, not open call-outs. For the tally count (three full gates plus two strokes is 17), give five seconds of quiet think-time before any hands go up. The gate-mark is the lesson's headline idea, so let it land before moving on.
The tally has been filled in for four categories: Walk, Cycle, Bus, Car. Every fifth mark crosses the four before it to make a gate. Count the gates first, then the extra strokes, to read each total fast.
Here the same count has been drawn as six separate upright strokes, no gates. Compare to the same six drawn as one gate plus one. Which is faster to read?
Twenty-four single strokes in a row would take ages to count one by one. Drawn as gate-marks, they read as four full gates plus four, done in a glance.
Here is the same gate-mark trick on a brand new question: favourite playground game. Same technique, different categories: tag, skipping, football, handball. The gates make any count easy to read, no matter what the question is.
Walk each example aloud, one at a time. Pause between them so the pictures land separately.
We will draft our own question together. The class agrees on a question, names four clear categories for it, then pupils take turns at the board adding one tally each as the rest of us count 'one, two, three, four, GATE'. The frequency column to the right updates as the gates fill.
This round is for talking it through together; pupils take turns at the board and the class agrees or corrects out loud.
Take three suggested questions from the class, vote, then settle on four clear categories before any tallying begins. Aim for something local: favourite playground game, favourite school dinner, favourite GAA code, pet at home. Rotate eight to ten pupils through the board, one tally each, as the class counts the gate. Stop and read the frequency column aloud every time a row fills its first gate, so the totals are tracked the whole way through.
Watch for a pupil adding a sixth upright stroke onto a full gate of five. Revoice gently: 'the gate is full, start the next group of five beside it'. That single confusion is the most common slip on this beat.
In your maths copy, write your own question at the top of a fresh page along with its category set. Then draw a tally frame with one row per category, ready for the outdoor count next. Add the frequency column on the right so the totals have somewhere to go.
Walk the room glancing at the frames. Every row should be labelled with one category and have space for tallies and a frequency total. No marking, this is whole-class copybook practice, not assessment. If a frame is too small for the count that's coming, prompt the pupil to widen the row before they go outside, not after.
Take the class to a vantage point with a steady stream of things to count — a school gate or front step, a window onto the road or yard, a playground corner, or the school garden. Arrange in three groups of roughly equal size, each with a maths copy on a hardback as a clipboard.
Stay inside and tally something visible from the classroom or corridor — jumper colours of pupils walking past, eye colours of pupils in the room, or shoe types in the cloakroom. Same three-group structure, same five-minute count, same data-entry beat on the IWB.
This round is the practice bank: pupils collect real data outdoors, tally as a class, and confirm each count before moving on. Keep the field work brisk rather than over-counting any one category.
Pick a vantage point your school has — a gate or front step that sees the road, a window with a view onto the road or yard, a playground corner where games are visible, the school garden. Budget roughly 5 minutes to walk out and set up, 5 minutes of tallying, and 3 minutes back inside to enter the totals on the IWB. Set a timer on your phone so pupils stop on cue.
Let each group pick a question that suits their view — a roadside vantage favours vehicles or commuters; a yard vantage favours jumper colours, playground games, or weather features (clouds, branches moving / still). The dominant category emerges quickly, that is the point, not exhaustive counting. Each group elects a spokesperson who reads their totals when you return to the IWB; the class enters them into the tally-chart together and predicts the dominant category before the chart confirms.
Stretch for fast finishers in a group: ask them to draft a question where one category is likely to dominate before the count begins, and predict why; the count then either confirms or surprises.
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