Little Cloud Store: a counting-money game with US coins and change - 9314 Toolbox - Little Cloud Store

You can also open the lesson on its full page. Here is how the lesson is designed.

1. Why teach money with a role play

Children can recite that a dollar is 100 cents and still hand over four $1 bills for a $3.75 tag. The difference is what the task asks for. A worksheet asks for one number; paying asks for three things at once — read the tag, break it into pieces, check the total. This lesson puts all three inside one scene: you are the cashier at Little Cloud Store, a dozen goods sit on the shelf, the tags are written in dollars and cents, and the customers queue up. The learner is not doing exercises, they are doing a shift. Get it wrong and the tray in their hands shakes. The costume is thin, but it buys ten more minutes of attention.

2. Level 1: pay the exact price

Twelve deals. The drawer holds pennies, nickels, dimes, quarters, $1, $5 and $10, restocked at the start of every deal: ten pennies, eight nickels, ten dimes, eight quarters, ten $1 bills, four $5 and three $10. There is exactly one rule — the tray has to match the tag. One extra penny and it will not ring up.

That no-more-no-less rule is the hardest constraint in the lesson. If overpaying and taking change were allowed, a child would solve every deal with a single $10 bill and never split dollars from cents. A $3.75 tag can be three $1 bills and three quarters, or three $1 bills, two quarters, two dimes and a nickel; both are correct, but both force the learner to handle the dollar part and the cents part separately. Most tags deliberately are not round numbers, so the cents cannot be dodged.

3. Level 2: work out the change before you open the drawer

Level 2 flips the direction. The customer hands over a $5, $10 or $20 bill: work out the change first, then tap it out. The trap here is covering the bill — children tend to count out the price and hand it over, skipping the subtraction entirely. So the first hint is always the same: change is the bill minus the tag, subtract it in your head, then open the drawer.

The answer then has to be broken into pieces again. A $10 bill for a $3.40 tag leaves $6.60, which is one $5, one $1, one quarter, one dime and one nickel. Getting the number right is one skill; building it out of coins is another, and the lesson marks both.

4. Hints point a direction, coins can always go back

Neither level takes points away. A wrong tray shakes, and the message only gives direction: there is more in the tray than on the tag, which coin could go back? Or: not enough yet, are the whole dollars covered? It never says how far off you are and never shows the answer. Counting the gap is the exercise.

The other detail is that any chip in the tray can be tapped back, and the drawer refills at once. It looks like a convenience; it is what makes trying safe. A child can drop a $10 bill in, see that it is too much, and peel chips off one at a time. Hands that are allowed to undo will actually count instead of guessing. The three hint levels work the same way: method first, then order, then a worked example using a different tag, so the answer stays with the learner.

After both levels: twenty-four deals, a first-try solve scores 100, a solve after a wrong tray scores 60, a level caps at 1,200, and twenty-one first-try deals out of twenty-four earns five stars.

FAQ

What if I run out of quarters?You will not. Every deal restocks the drawer — eight quarters, ten dimes, eight nickels and ten pennies — and nothing carries over from the previous deal. Anything placed by mistake can be tapped back.

Do wrong answers cost points?No. A first-try solve is 100 and a solve after a wrong tray is 60, with 1,200 as the maximum for a level. The tray shakes and the message says only whether you are over or short.

Is my progress saved?No. Reloading the page opens the store fresh; the browser only remembers that you have seen the intro and whether sound is on. No answers, scores or stars are uploaded.

中文版：https://www.9314.cn/tools/xiao-mai-bu/