Learning how to manage money begins long before we open a bank account or build a spreadsheet. It starts with one basic question: how do we decide what matters most? The “desert island” exercise helps students practice setting priorities, distinguishing between needs and wants, and understanding that every choice involves giving something up. These are the same skills they will later need when making personal, family, or financial decisions.
Most of us cannot buy everything we want. Even when we have some money, time, or resources, they are always limited. That is why financial education should not begin with numbers alone. It should begin with values, preferences, and the ability to make thoughtful choices.
Why Priorities Matter
Children and teenagers often experience decision-making through small everyday moments: choosing what snack to buy, deciding whether to save money for something bigger, or asking their parents for something they saw in a store or online. These moments may seem simple, but they are the foundation of financial behavior.
When students learn to ask themselves, “Do I need this?” “Do I want this?” and “How important is this compared to something else?” they begin to build an important life skill. They learn that not every desire has the same level of importance, and not every need is equally urgent.
This exercise gives students a safe, playful way to experience that process.
The Exercise: What Would You Take?
The group is invited to imagine the following situation: each participant is going to a desert island and can choose only a limited number of items to take along. Each student thinks of ten items they would like to bring.
At first, the task may sound easy. But once the students begin writing their lists, questions usually come up: Should I take food, a phone, a blanket, a book, a flashlight, water, a game, or something sentimental? What is useful? What is comforting? What feels urgent? What would I miss most?
This is where the real learning begins.
The Traffic Light Method
To help students sort their choices, the exercise uses the traffic light method. Each item is written on a colored note according to its level of importance:
Red: This is very important to me, or I have a strong need for this item.
Yellow: This is moderately important to me, or I have a moderate need for this item.
Green: This is not very important to me, or I do not really need this item.
The same method can also be used with the language of “want.” For example: I really want this item, I want it somewhat, or I want it the least. This version helps students see that “wanting” something also has levels, and that not every want should automatically become a purchase or a decision.
Needs, Wants, and the Space Between Them
After the students sort their items, the group discusses the choices. Which items were marked red? Were they practical items, emotional items, or fun items? Did different students choose very different things? Did anyone change their mind after hearing another student explain their choice?
This discussion helps students understand that priorities are personal, but they should still be thought through. One student may feel that a flashlight is essential. Another may choose a notebook because writing helps them feel calm. A third may want to bring a favorite snack, even though it may not be the most useful item.
The goal is not to tell students that one answer is right and another is wrong. The goal is to help them explain their thinking and understand the difference between need, want, importance, and preference.
Connecting the Exercise to Money
Toward the end of the discussion, the facilitator connects the activity to financial life. A budget is also a kind of priority map. It helps us decide what we need, what we want, what matters most right now, and what can wait.
Just as the students cannot take everything to the island, people and families cannot always spend money on everything they would like. They may need to choose between eating out and saving for a trip, buying something new and repairing something old, or spending now and saving for later.
When students understand their own priorities, they are better prepared to build a personal or family budget in the future. They learn that budgeting is not only about restriction. It is about choosing consciously.
What You Need for the Activity
To run the exercise, prepare a worksheet for each group, colored cards or sticky notes in red, yellow, and green, and writing tools such as pens or markers. It is recommended to have at least 30 notes of each color, depending on the size of the group.
The activity can be done individually, in pairs, or in small groups. It can also be adapted for different ages by changing the discussion questions and the level of financial connection at the end.
A Small Exercise with a Big Message
The desert island exercise is simple, but its message is powerful: every choice reflects a priority. When students learn to pause, compare options, and name what matters most, they gain a practical tool for life.
Whether they are choosing what to take to an imaginary island or deciding how to spend real money, the same principle applies: thoughtful choices begin with understanding what we truly need, what we want, and what we are willing to give up.
