Context

Hello, little mathematicians! Our mathematical journey today will lead us to explore the wonderful world of addition and subtraction. Do you know what addition and subtraction are? Well, addition is when we add two or more numbers to get a total. For example, if we have 4 apples and we get 3 more, we will have a total of 7 apples. Subtraction, on the other hand, is when we take one number away from another. For example, if we have 7 apples and eat 3, we will have 4 apples. Now, let's embark on this mathematical adventure together!

Introduction

Addition and subtraction are basic mathematical operations and very important for our daily lives. When we play with our friends, count how many candies each one has, or when we share a cake, we use addition and subtraction without even realizing it.

Addition is like a recipe: you take two or more numbers (ingredients) and combine them to get a total number (the final dish). For example, 2 + 3 = 5. In this addition, we take 2 and combine it with 3 to get a total of 5.

Subtraction is a bit different. It's like taking something away. For example, if we have 5 candies and give 2 to a friend, we will be left with 3. In this case, we are subtracting 2 from 5 to get 3.

Now, let's delve deeper into these operations with our project "Math Treasure Hunt"! Are you ready for the adventure?

Practical Activity: "Math Treasure Hunt"

Project Objective

The objective of this project is for students to practice and better understand the operations of addition and subtraction, as well as develop collaboration, problem-solving, and time management skills.

Project Description

Students will divide into groups of 3 to 5 and participate in a "Math Treasure Hunt"! Each group will receive a series of mathematical challenges involving addition and subtraction of natural numbers less than 100. For each challenge solved correctly, the group will receive a clue to find the next challenge. The final goal is to find the "treasure", which can be a special prize in the classroom or simply the satisfaction of completing the treasure hunt!

Required Materials

• Paper and pencil for each group
• Cards with mathematical challenges and clues
• Prize for the "treasure" (can be a candy, a sticker, a special compliment, etc.)

Step by Step

1. Group Formation: Students will be divided into groups of 3 to 5. Each group should choose a "Treasure Captain" to manage the group's time and tasks.

2. Project Explanation: The teacher will explain the project to the class, emphasizing the importance of collaboration, logical thinking, and practice of addition and subtraction operations.

3. Distribution of Materials: Each group will receive paper, pencils, cards with mathematical challenges, and clues.

4. Start of the Treasure Hunt: The teacher will give the starting signal, and the groups will begin to solve the mathematical challenges. Each challenge solved correctly will entitle the group to a clue for the next challenge.

5. Challenge Resolution: Students should solve the mathematical challenges together, discussing strategies and checking each other's answers.

6. Arrival at the Treasure: The first group to complete all challenges and find the "treasure" will be the winner of the treasure hunt!

7. Final Reflection: After the activity ends, the teacher will lead a classroom discussion on what the students learned from the treasure hunt, the strategies they used to solve the challenges, what the biggest difficulties were, and how they overcame them.

Remember, math is everywhere, and with practice and fun, we can become true math masters! Good luck, little explorers!