Grade 3 students learn how economic choices are made using key concepts including trade-offs, costs, opportunity costs, benefits, needs, and wants. The lesson, from Chapter 6 of California myWorld Interactive, guides students through weighing the costs and benefits of options to understand why limited resources require careful decision-making. Students practice applying these ideas through real-world examples like choosing between purchases or community spending decisions.
Section 1
People Make Choices with Limited Resources
Imagine you are at a farmers' market. You want to buy a big apple pie, fresh lemonade, and a colorful flower. But you only have five dollars! You cannot buy everything you want.
This is a problem everyone has. There are not enough things in the world for everyone to have everything they want. This is called scarcity. Because of scarcity, people must make choices and decide what is most important to them.
Section 2
People Weigh Costs and Benefits
Because of scarcity, you cannot have everything you want. You must make choices. At a farmers' market, you might want an apple and a cookie but only have enough money for one item.
To make a choice, you think about what you will gain and what you will give up. The good part you get is the benefit, like a sweet, juicy apple. The thing you must give up is the cost, like not getting to eat the yummy cookie.
Section 3
Families Considered Needs and Wants
People make choices based on their needs and wants. A need is something a person must have to survive, like food, water, and a safe place to live. A want is something a person would like to have but does not need to live, like a special treat or a big adventure.
The family in the 1860s had to think about both. They needed a farm to grow food and have a home. But they also wanted the excitement of a long journey and the chance to find gold in California. Their choice was about meeting their needs and also trying to get something they wanted.
Section 4
Families Make Trade-Offs
The family in Missouri faced a big choice. They could not stay on their farm and also move to California. They had to pick just one path. This is a trade-off, where people give up one option to choose another.
If the family moved west, they would get new land but lose their old home and friends. The value of the next-best thing they gave up is called the opportunity cost. The opportunity cost of moving was the safe, familiar life they left behind.
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Section 1
People Make Choices with Limited Resources
Imagine you are at a farmers' market. You want to buy a big apple pie, fresh lemonade, and a colorful flower. But you only have five dollars! You cannot buy everything you want.
This is a problem everyone has. There are not enough things in the world for everyone to have everything they want. This is called scarcity. Because of scarcity, people must make choices and decide what is most important to them.
Section 2
People Weigh Costs and Benefits
Because of scarcity, you cannot have everything you want. You must make choices. At a farmers' market, you might want an apple and a cookie but only have enough money for one item.
To make a choice, you think about what you will gain and what you will give up. The good part you get is the benefit, like a sweet, juicy apple. The thing you must give up is the cost, like not getting to eat the yummy cookie.
Section 3
Families Considered Needs and Wants
People make choices based on their needs and wants. A need is something a person must have to survive, like food, water, and a safe place to live. A want is something a person would like to have but does not need to live, like a special treat or a big adventure.
The family in the 1860s had to think about both. They needed a farm to grow food and have a home. But they also wanted the excitement of a long journey and the chance to find gold in California. Their choice was about meeting their needs and also trying to get something they wanted.
Section 4
Families Make Trade-Offs
The family in Missouri faced a big choice. They could not stay on their farm and also move to California. They had to pick just one path. This is a trade-off, where people give up one option to choose another.
If the family moved west, they would get new land but lose their old home and friends. The value of the next-best thing they gave up is called the opportunity cost. The opportunity cost of moving was the safe, familiar life they left behind.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter