Take two or three hands-up answers, not open call-out. Steer toward the word size: the pizza slices are equal because we chose to cut them fairly; the survey slices are different because they show different amounts of data.

Do not name the term "pie chart" yet — let the noticing land first.

Point to the equal-slice pizza first: these are equal because we cut them fairly, not because the data made them that way.

Now the fruit pie. The apple slice got 12 of the 24 votes — point out that it fills exactly half the circle. Ask the class to predict the banana slice size before you point to it; 6 of 24 is a quarter, so 90°.

Hold out for the class to notice that a bigger count makes a bigger slice. Do not tell them the rule — let the half-slice and quarter-slice do the work.

Two slices give awkward percentages, so do not chase exact decimals with the class. The orange slice is 4 of 24, so call it about a sixth. The pear slice is 2 of 24, so call it a small slice, less than a tenth. Keep the friendly half and quarter as the numbers pupils read exactly.

Revoice a strong answer: so the slice size follows the number of votes.

Talk this one through together — pupils take turns at the board and the class agrees or corrects out loud.

Start with the how-do-you-get-to-school survey: 8 walk, 4 cycle, 6 bus, 4 car (total 22). Before a pupil enters each count, ask the class to predict whether walking or bus will win.

The teaching move is the reshape: change the walk count from 8 up to 14 and ask the class to predict what happens to every other slice before the pie redraws. This is where "proportional" lands — one slice growing squeezes the others.

Watch for the common slip: pupils expecting the other slices to stay the same size when one count rises. Revoice: the whole circle is always full, so if one slice grows the rest must shrink to fit.

This is the practice round — pupils take turns at the board, check each answer, and the class confirms before moving on. Keep the board work brisk rather than over-explaining.

The 10:10 target lands on two equal halves — a good confidence-builder to open with. The 15:5 target makes the red slice three-quarters, so the class sees a familiar friendly fraction. The four-way sweet survey is the real work. The break-time drinks survey has one slice (water, 11 of 20) just over half, so the class must decide which slice "wins" the circle.

Before each Check, ask the class to predict the biggest slice. The Check button confirms each count by label; use the ✓ as part of your narration — yes, that's it.