Grade 3History

Supply Meets Demand in the Market

"Supply Meets Demand in the Market" is a Grade 3 economics lesson in Social Studies Alive! California's Communities (Chapter 5: Economics) that introduces supply and demand as the two forces shaping free markets. Students learn that supply is the total amount of a good or service available for purchase, while demand is the amount customers want to buy. Using a toy factory example — 1,000 dolls produced versus 5,000 people wanting one — the lesson shows how imbalances between supply and demand influence availability and help determine prices.

Key Concepts

In a free market, businesses decide how much of a product to make. The total amount of a good or service that is available for people to buy is called the supply . For example, if a toy factory makes 1,000 new dolls, the supply is 1,000.

At the same time, customers decide what they want to purchase. The amount of a good or service that customers want to buy is called the demand . If 5,000 people want to buy the new doll, the demand is very high.

Common Questions

What is supply?

Supply is the total amount of a good or service that is available for people to buy. For example, if a toy factory produces 1,000 dolls, the supply of that doll is 1,000.

What is demand?

Demand is the amount of a good or service that customers want to buy. If 5,000 people want the new doll, the demand is 5,000.

What happens when demand is higher than supply?

When more people want a product than there are products available, not everyone who wants it can get one. This often causes the price to go up.

What happens when supply is higher than demand?

When more products are available than people want to buy, there are leftovers. Businesses often lower prices to encourage more people to buy them.

How do supply and demand affect prices?

High demand with low supply pushes prices up because buyers compete for scarce products. High supply with low demand pulls prices down because sellers need to attract buyers.

What grade covers supply and demand?

This economics lesson is in Grade 3, Chapter 5 of Social Studies Alive! California's Communities.