Supply and Demand Activity for High School

Need a supply and demand activity for high school that gives students something to explain? I would start with a familiar product and change one condition at a time. A price increase means more when students can point to what changed in the market. You can introduce a graph after they understand the situation. That gives the lines a job, rather than making the whole lesson about remembering which direction to draw them.

Change One Market Condition

Choose a product students understand and define the market clearly. You might use tickets for a school event or a seasonal snack. Give enough detail that students know what is being offered, who might buy it, and what time period the example covers.

Begin with a baseline situation. Set an available quantity and provide a simple description of customer interest. Ask students what information they would want before choosing a price. Record their questions before introducing a change.

Next, change one condition. Maybe an event becomes more popular, or a supplier can provide fewer items. Ask students whether the change affects buyers or sellers first. Have them explain their answer in ordinary language.

If you use demand and supply graphs, connect each movement to the story. Distinguish a change in quantity demanded caused by the product’s own price from a shift in demand caused by another factor. The scenario should support the graph the students draw.

Give students another round with a different condition. A competing event, a change in production costs, or a new alternative can create a useful comparison. Keep unrelated details steady so students can focus on the reason for the change.

I would ask for a short written explanation after each round. What changed? What effect would they expect? What assumption are they making? This makes it easier to spot whether a correct-looking graph came from clear thinking.

You can also let small groups propose a price and compare their reasoning. Explain whether the task has a calculated equilibrium or asks students to make a reasoned pricing choice. Those are different kinds of assignments, and students should know which one they are doing.

End by returning to the first situation. Ask students how their explanation has become more precise.

Explore the economics activities below, then choose one market and one change to get the discussion started.