Objectives (5 - 7 minutes)

1. Main Objective: Introduce the concept of fractions and their numerical representation in a playful and interactive way, using everyday objects of the students, such as food, toys, among others. By the end of this lesson, students should be able to recognize basic fractions, such as 1/2, 1/3, 1/4, and 1/5, and understand their numerical representation.

2. Secondary Objective: Develop students' communication and expression skills, encouraging them to share their ideas and solutions during group activities. In addition, the lesson aims to stimulate students' curiosity and interest in mathematics, showing that mathematical concepts are present in various everyday situations.

To achieve these objectives, the teacher should use clear and simple language, as well as propose practical and contextualized activities that allow students to explore the concept of fractions in a concrete and meaningful way.

Introduction (10 - 15 minutes)

1. Review of Previous Content: The teacher starts the lesson by reviewing previous mathematical concepts that will be useful for understanding the new content, such as the notion of quantity, division, and addition. For this, simple questions can be proposed, such as: "How many pieces does a whole pizza have?" or "If we have 10 candies and want to divide them equally between 2 friends, how many candies will each one receive?".

2. Problem Situation 1: The teacher presents the first problem situation to arouse students' interest. For example, he can ask, "Have you ever stopped to think about how we can represent half of something?". The teacher can bring a real object, such as an apple, and divide it into two equal parts, showing that each part represents half of the apple.

3. Problem Situation 2: The teacher continues the introduction with the second problem situation, asking: "And if we want to divide the apple into three equal parts, how can we represent each of these parts?". Here, the teacher can use a birthday cake with three candles, showing that each candle represents a third part of the cake.

4. Subject Contextualization: The teacher explains that dividing an object into equal parts is a way to represent fractions. He can give examples from students' daily lives, such as dividing a chocolate bar among siblings or dividing a toy among friends. The teacher emphasizes that fractions are very useful in real situations, such as in cooking recipes, time measurements, and many other situations.

5. Topic Introduction: The teacher formally introduces the topic of the lesson, explaining that fractions are a way to represent parts of a whole. He can use graphic examples, such as a pizza cut into slices, to illustrate the concept. In addition, the teacher can mention that fractions are very important in mathematics, as they are the basis for the study of many other concepts, such as addition and subtraction of fractions.

During this introductory stage, the teacher must ensure that all students are engaged and understanding the content. For this, it is important to ask questions directed at different students, encouraging them to actively participate in the lesson. In addition, the teacher must be attentive to correct any misunderstandings and reinforce the concepts that are most challenging for students.

Development (20 - 25 minutes)

1. Activity 1: "Fractions on the Plate"

   1.1 The teacher organizes the class into groups of 4 to 5 students and distributes paper plates, modeling clay, and cards with different fractions (1/2, 1/3, 1/4, and 1/5).

   1.2 Each group is tasked with representing, in the modeling clay, the fraction indicated on the card and sticking the clay on the plate, forming a "cake" divided into equal parts corresponding to the given fraction.

   1.3 At the end, each group must present their "fraction cake" to the class, explaining how they arrived at the representation of the fraction indicated on the card.

2. Activity 2: "Fractions in the Game"

   2.1 The teacher prepares cards with different fractions (1/2, 1/3, 1/4, and 1/5) and a large white paper divided into several parts.

   2.2 The teacher distributes the cards to the students and then challenges them to draw on the white paper the fraction they received. For example, if the student received the card with the fraction 1/4, he must draw a quarter of the paper.

   2.3 All students draw the received fraction, and at the end, the teacher checks the answers. Students who drew correctly earn points, and the game restarts with new cards.

3. Activity 3: "Fractions on the Board"

   3.1 The teacher prepares a large board on the floor, with painted squares, each representing a different fraction (1/2, 1/3, 1/4, and 1/5).

   3.2 Students are divided into groups, and one by one, the members of each group must roll a giant die. The number that falls on the die indicates the fraction they must find on the board and explain to the group.

   3.3 At the end, the group that finds the most fractions correctly wins the game.

During these activities, the teacher must circulate among the groups, clarifying doubts, encouraging cooperation and communication among students, and reinforcing the concepts learned. In the end, it is important to make a collective review of the main points covered, consolidating learning and highlighting the applicability of fractions in everyday situations.

Return (10 - 15 minutes)

1. Group Discussion: The teacher gathers all students in a large circle and promotes a group discussion about the solutions found during the activities. Each group is invited to share their experience and the solutions they found. The teacher should ask questions that encourage students to explain the reasoning behind their solutions, reinforcing the understanding of the concepts worked on. For example, "How did you decide to divide the apple into 4 equal parts?" or "Why do you think the fraction 1/3 represents a third part?".

2. Connection with Theory: After discussing the activities, the teacher revisits the theoretical concepts presented at the beginning of the lesson, making the connection with the solutions found by the students. For example, the teacher can say, "Do you remember when I talked about the apple and the pizza? These are examples of how we can divide a whole into equal parts and represent these parts using fractions." The teacher can also reinforce the importance of fractions in mathematics and everyday life, mentioning practical examples given by students during the activities.

3. Reflection on Learning: To conclude the lesson, the teacher proposes that students reflect on what they have learned. For this, the teacher can ask two simple questions:

   1. "What did you find easiest in today's lesson and why?"
   2. "What did you find most challenging and why?"

   The teacher should give a minute for students to think about their answers, and then some students are invited to share their reflections. This reflection stage is important for students to internalize what they have learned and realize their own progress.

Throughout the return, the teacher must encourage students to express their opinions and doubts, creating a welcoming environment conducive to learning. In addition, the teacher must be attentive to correct any misunderstandings and reinforce the concepts that have not yet been fully assimilated by students. At the end of the lesson, the teacher must assess whether the proposed objectives were achieved and plan the next steps in the teaching-learning process.

Conclusion (5 - 7 minutes)

1. Lesson Summary: The teacher summarizes the main points covered in the lesson, recalling the definition of fractions as the representation of a part of a whole, and how they can be represented numerically. He also reinforces the basic fractions (1/2, 1/3, 1/4, and 1/5) and how they can be visualized in different everyday situations. For example, the teacher can ask students: "Who remembers how to represent half of a cake?" or "How can we represent a quarter of a pizza?" to check students' understanding.

2. Connection between Theory and Practice: The teacher highlights how the practical activities carried out in the classroom helped solidify the theoretical concepts. He emphasizes that fractions are not just abstract numbers, but a concrete way to represent parts of a whole. In addition, the teacher mentions how the activities allowed students to explore the concept of fractions in a playful and interactive way, using everyday objects and games.

3. Extra Materials: The teacher suggests additional materials for students who want to deepen their knowledge on the subject. These materials may include online games that explore the concept of fractions, educational videos that present different ways to visualize fractions, and books or coloring activities that students can use at home to practice fraction representation.

4. Importance of the Subject: Finally, the teacher emphasizes the importance of studying fractions. He explains that fractions are an essential tool for solving everyday problems, such as dividing a cake among friends, making a cooking recipe, measuring time, among others. Additionally, he mentions that fractions are the basis for the study of other mathematical concepts, such as addition and subtraction of fractions.

During the conclusion, the teacher must ensure that all students understand the main points covered in the lesson and feel encouraged to continue exploring the fascinating world of fractions. In addition, the teacher must reinforce the importance of respect and cooperation during group activities, essential values for effective learning and social interaction.