Objectives (5 minutes)

1. Introduce the concept of unequal sharing, showing students that in some situations, the sharing of a set of objects between two or more people does not need to be equal.
2. Develop the ability to solve problems of unequal sharing through practical and playful examples.
3. Stimulate reflection and discussion among students about the concept of unequal sharing, reinforcing the importance of respecting differences and diversity.

Introduction (10 - 15 minutes)

1. Recalling basic concepts: The teacher starts the lesson by recalling the concepts of addition and subtraction, fundamental for understanding the concept of unequal sharing. They can propose some simple problem situations involving these operations, such as 'If I had 5 oranges and gave 2 to my friend, how many oranges do I have now?' or 'I had 3 candies and received 2 more. How many candies do I have now?'. This serves as a warm-up for the lesson and to review basic concepts.

2. Contextualized problem situations: The teacher then proposes two problem situations involving unequal sharing. The first one could be: 'I have 10 chocolates and want to share with my 2 friends. One of them likes chocolate more than the other. How can I make sure each of them gets an amount of chocolates they like?'. The second situation could be: 'I have 15 stickers and want to trade with my friend. He has fewer stickers than me. How can we make a fair trade?'.

3. Presenting the scenario: To introduce the topic in an interesting way, the teacher can tell a story or present a curiosity. For example, they can say: 'Have you heard about the story of King Solomon? They say he was a very wise king and that one day, two women argued because each claimed a baby was hers. So, King Solomon had an idea: he said he would divide the baby in two, so each could have a part. The true mother then told the king she preferred the other woman to have the baby, so it wouldn't be harmed. That way, King Solomon managed to find out who the real mother was.'

4. Capturing students' attention: To spark students' curiosity, the teacher can pose two questions: 'Do you think it's always fair to divide everything equally? And if one person likes something more than the other, how can we divide it fairly?'. Additionally, they can mention that by learning about unequal sharing, students will be able to solve everyday problems, like sharing a snack with a friend or making a fair toy exchange.

Development (20 - 25 minutes)

In this stage, the teacher will present activities that will help students better understand the concept of unequal sharing. Three different activities will be suggested, each focused on a specific subtopic of the content. The teacher can choose one or more activities, depending on the available time and the needs of the class.

1. Unequal Sharing Game:

   1.1 Preparation: The teacher prepares cards with images of objects commonly shared among children, such as balls, dolls, colored pencils, etc. Some cards should have the same number of objects, while others should have different quantities.

   1.2 How to Play: The teacher hands out the cards to each group of students, and each group must try to make an unequal sharing among the members. The goal is for them to understand that unequal sharing is fair when each receives an amount of objects that satisfies their needs.

2. Unequal Sharing Riddle:

   2.1 Preparation: The teacher prepares some riddles in the form of unequal sharing problems. For example: 'I have 12 candies to share with my brother. He likes candies more than I do. How can we divide them in a way that is fair for both?'.

   2.2 How to Solve the Riddle: The teacher hands out the riddles to each group of students, and they must discuss among themselves and come up with a solution to the problem. The teacher should guide the students to think of strategies for sharing, such as dividing the quantity of objects equally but fairly, or allowing each to choose the amount of objects they want, according to their preferences.

3. Unequal Sharing Story:

   3.1 Preparation: The teacher prepares a short story involving unequal sharing. The story could be about a group of friends sharing a snack, for instance.

   3.2 How to Listen to the Story: The teacher reads the story to the class and then asks some questions to check if the students understood the concept. For example: 'Why did character X take more cookies than character Y?' or 'Do you think the sharing they did was fair? Why?'.

These are just suggestions for activities, and the teacher can adapt them according to the class's needs. The important thing is for students to experience unequal sharing in a practical and playful way, so they can understand the concept and apply it in real situations.

Feedback (10 - 15 minutes)

1. Group Discussion (5 - 7 minutes): The teacher gathers the whole class and asks each group to share their solutions or conclusions reached during the activities. Each student should have the opportunity to talk about their understanding of unequal sharing and how they solved the proposed problems. During this discussion, the teacher should ask questions to stimulate the students' reflection, such as 'Why do you think this was a fair solution?' or 'Did you reach a consensus? Why?'. The goal here is to consolidate the understanding of the concept of unequal sharing and promote the exchange of ideas among students.

2. Connection with Theory (2 - 3 minutes): After the group discussion, the teacher reviews the theory, reinforcing the main points covered during the lesson. They can emphasize that unequal sharing is a strategy that can be used to solve real problems, like sharing a snack with a friend or making a fair toy exchange. They can also reinforce that unequal sharing is not about who gets more or less, but about respecting differences and preferences of each individual.

3. Individual Reflection (3 - 5 minutes): To conclude the lesson, the teacher suggests that students engage in individual reflection on what they have learned. They can ask two simple questions to guide this reflection:

   • 'What was the most challenging part of today's activity and why?'
   • 'How can you use what you learned today in everyday situations?' Students have a minute to think about these questions and, if they wish, they can share their answers with the class. This reflection helps students consolidate what they have learned and realize the relevance of the content to their lives.

This feedback is a crucial stage for the effectiveness of learning. Through group discussion, students have the opportunity to reinforce what they have learned, hear different perspectives, and learn from each other. The connection with theory helps solidify the content and understand how it applies in practice. And individual reflection promotes self-awareness and autonomy, encouraging students to think critically and apply what they have learned in other situations.

Conclusion (5 - 10 minutes)

1. Synthesis and Recapitulation (2 - 3 minutes): The teacher starts the conclusion by summarizing the main points covered during the lesson. They reinforce the concept of unequal sharing, reminding students that in some situations, the sharing of a set of objects between two or more people does not need to be equal. Additionally, they reiterate the importance of respecting differences and preferences of each individual during sharing. The teacher can ask some review questions to check if students have understood the concept, such as 'What is unequal sharing?' and 'Why is it important to respect differences and preferences of each individual during sharing?'.

2. Connection between Theory and Practice (1 - 2 minutes): Next, the teacher highlights how the lesson connected theory to practice. They explain that through playful activities, students had the opportunity to apply the concept of unequal sharing in real situations, like sharing a snack with a friend or making a fair toy exchange. Furthermore, they emphasize that understanding unequal sharing can help students solve everyday problems more efficiently and fairly.

3. Extra Materials and Recommendations (1 - 2 minutes): The teacher suggests some extra materials for students who wish to deepen their learning about unequal sharing. They can recommend children's books that address the topic, such as 'The Ants' Party' or 'The Wolf Who Wanted to Change Color'. Additionally, they can recommend online games or educational apps that help develop the ability to solve sharing problems, like 'Catch the Apple' or 'Monster Math'.

4. Importance of the Subject in Daily Life (1 - 2 minutes): Finally, the teacher emphasizes the importance of the content learned for students' daily lives. They explain that unequal sharing is a useful skill not only in school situations, but also in everyday scenarios, like sharing a treat with a sibling, sharing a toy with a friend, or even when dividing tasks at home. Furthermore, they highlight that understanding the concept of unequal sharing helps promote empathy and respect for differences, essential values for social interaction.

The conclusion serves to consolidate learning, reinforce the relevance of the content, and encourage students to continue exploring the topic on their own. Additionally, it helps show students how what they learned in the lesson applies to their lives, encouraging them to value and use the knowledge acquired.