Contextualization

Hello, little mathematicians! Today we are going on an incredible adventure to discover the wonderful world of sizes and their comparisons. Whenever we talk about sizes, we think of big and small things, but have you ever stopped to think about how we can compare these sizes? For example, how can we know if an elephant is bigger than a giraffe? Or if an ant is smaller than a bee? That's what we are going to explore in this project!

Did you know that mathematics helps us understand these size comparisons? Yes, mathematics is much more than numbers and calculations, it also helps us understand the world around us, including how things relate in terms of size. And that's how mathematics becomes a great tool to help us learn about the world!

Introduction

In our daily lives, we use various terms to compare sizes, such as "bigger than", "smaller than", and "equal to". These are called comparison signs. They help us understand the relationships between the sizes of things.

For example, if we say that an elephant is bigger than a giraffe, we are comparing the sizes of these animals. If we say that an ant is smaller than a bee, we are also comparing the sizes of these insects. And if we say that a dog is equal to a cat in size, we are saying that they are the same size.

But how can we know if something is bigger, smaller, or equal to something else? This is where mathematics comes into play! Mathematics gives us tools, such as numbers and symbols, to make these comparisons. And that's what we are going to explore in this project!

So, get ready for a journey of discoveries, where we will explore, through practical and fun activities, how mathematics helps us understand size comparisons. Are you ready? Let's go!

Practical Activity: Discovering Sizes

Activity Title: "Comparing Sizes: Big, Small, and Equal"

Project Objective

This project aims to help you understand how mathematics helps us compare sizes using terms like "bigger than", "smaller than", and "equal to". Additionally, we will work on important skills such as group communication, problem-solving, and creative thinking.

Detailed Project Description

In this activity, each group will receive a list of things to compare. You will discuss in groups and decide which things are bigger, smaller, or equal to each other. Then, you will draw these things on pieces of paper and cut them to represent their sizes. Finally, you will present your findings to the class.

Required Materials

• A4 paper or cardboard
• Colored pencils
• Ruler
• Blunt scissors
• Glue
• List of things to compare (provided by the teacher)

Step by Step

1. The teacher will provide each group with a list of things to compare. For example: an ant, a bee, a dog, a cat, a giraffe, an elephant.

2. In a group, discuss which of these things are bigger, smaller, or equal to each other. Remember that the idea is to compare the sizes, not the number of them. For example, the ant is smaller than the bee, the elephant is bigger than the giraffe, etc.

3. Now, take the A4 paper or cardboard and draw the things from the list. Remember that you are representing the sizes, so try to draw in a way that shows the size difference between them. Use the ruler to help make the drawings.

4. After drawing everything, cut out the images.

5. Now, with the cut-out images, you will compare the sizes again. Select one image at a time and discuss in the group whether it is bigger, smaller, or equal to another image.

6. Glue the images on another sheet of paper, in the order you decided.

7. Finally, prepare a presentation for the class. In the presentation, you will show the images and explain to the class how you made the size comparisons. Remember to use the words "bigger than", "smaller than", and "equal to" in your explanations.

Delivery Format

The delivery format will be the presentation of the work to the class. Each group will have the opportunity to present their findings, explaining how they made the size comparisons and what they learned from the activity. The drawings and cutouts can also be displayed in the classroom for everyone to appreciate the work of their classmates.