Behind the counter, every order is a recipe ratio, pour the right proportions, reduce to simplest form, then scale the batch to size.
Each order asks for a blend in a given ratio. Pour whole units of each ingredient so your mix matches that ratio in simplest form, then scale the whole batch up to the quantity the order needs. Get the proportion right and the serving size right to satisfy the customer; wasted or wrong amounts cost you. Serve order after order against the clock for a high score.
Mix Master drills ratios, equivalent fractions and proportional scaling through quick-paced mixing, where getting the proportion right is the whole game.
Pouring whole units so a blend matches a given ratio in simplest form, then scaling the batch to the quantity ordered, is proportional reasoning in two steps.
The original demand is that both halves must be right: correct proportion and correct serving size.
Separating them is the useful part. Ratio and amount are routinely confused — a recipe doubled is still the same recipe — and a customer who wanted the right blend in the wrong quantity is a concrete way to show that the two are independent.
Mix Master is an original, free browser game that drills ratios, equivalent fractions and proportional scaling through a quick-paced mixing counter. No download or account required.