Here are two ways to pay for the same sweet. One friend hands over two 50c coins. Another hands over one €1 coin.
Hands up: did they both pay the same amount? How can two 50c coins be worth the same as one €1 coin?
Display the two 50c coins beside the single €1 coin as pupils settle. Take three hands-up answers, not open call-outs.
Draw out the key idea for the lesson without confirming it fully: the same amount can be made in more than one way. Hold the full explanation for the model step.
Here are four amounts on the money tray. Look carefully at how the same total is built from different coins.
Now look at two bigger amounts. One is made with our biggest coins, and one uses a €5 note.
Point to the first two trays together: same fifty cent, two different sets of coins. Ask which set uses fewer coins.
On the €1.20 tray, name the euro part and the cent part aloud so pupils hear where the euro coin ends and the cent coins begin.
On €5.20, stop and name the €5 note as paper money: coins go up to €2, and from €5 up we use notes. Hold out for a pupil to say why we would use a note here rather than five €1 coins.
Today we make these amounts on the money tray: 45c, then €1.10, then €1.75. One pupil comes up to build each amount on the board. The rest of us watch, then call out a second way to make the very same amount.
Talk this one through together — one pupil builds at the board while the class agrees or corrects out loud.
Call one pupil up per amount. After the tray totals correctly, ask the whole class: can anyone make that same amount with different coins? and let a second pupil try.
Watch for pupils who reach for lots of small coins when a bigger coin would do — prompt is there a handier coin you could use? rather than correcting them.
In your maths copy, write three amounts the teacher gives you, one under the other. Beside each amount, list the coins you would use to make it.
Give three amounts aloud (for example 55c, 90c, €1.30). Walk the room glancing at how pupils split the euro and the cent — no marking, this is whole-class copybook practice.
Today we work through these amounts on the money tray: 35c, then 80c, then €1.50, then €5.10. For each one we make the amount and press Check. The last one uses a €5 note, so we say the euro part and the cent part out loud before we check it.
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.
After each correct tray, ask could you make that with fewer coins? The 80c amount is a good one for this — four 20c coins works, but a 50c, 20c and 10c is fewer.
€5.10 is the reach: hold out for the class to notice they reach for the €5 note, then a 10c coin, and that a note is handier than five €1 coins.
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