Contextualization

Mathematics is present in our lives in various ways, even when we don't realize it. A practical example of this is the operations of addition and subtraction with missing values, a concept that you will learn in this project. But what does that actually mean?

To better understand, imagine the following situation: you have a total of 10 bananas, eat some, and now you only have 4 left. How many bananas did you eat? To solve this, just do a subtraction: 10 (the initial total of bananas) - 4 (how many are left) = 6 bananas. This is what we call missing values. In mathematics, this is translated into an equation, where the value you ate, in this case, is the missing value to be found.

This type of equation with a missing value is very common and widely used in everyday life, in various situations. For example, when we go shopping and need to calculate the difference between the quantity we have and the quantity we need, or when we are going to divide something among a certain number of people and want to know how much each will receive.

Understanding and being able to solve this type of operation is of great importance, especially for those who are starting their journey in the study of Mathematics. In addition, these simple operations form the basis for many more advanced mathematical concepts.

To learn and understand more about this topic, we suggest the following study sources:

1. Simple Mathematics: a website with explanations on various math topics, in a simplified and easy-to-understand way.

2. The Mathematics: a YouTube channel that contains explanatory videos on various mathematical concepts, including addition and subtraction with missing values.

3. The World of Mathematics: a blog with articles and practical exercises on various math topics.

Good luck, and remember: practice makes perfect!

Practical Activity: 'Discovering the Lost Values'

Project Objectives

By the end of this project, it is expected that students will be able to:

1. Understand and identify in an addition or subtraction operation the missing component.
2. Solve mathematical operations to find these missing values.
3. Work efficiently in a team, making use of good communication practices and problem-solving.

Detailed Project Description

The project consists of creating a 'Lost Values Board Game.' Each group of students will create a board with several spaces, similar to the board games 'Game of Life' or 'Monopoly.' In each space, there will be a mathematical operation of addition or subtraction with a missing value. The goal is to advance on the board by solving these operations.

Required Materials

1. Cardboard or Cardboard for the base of the board.
2. Colored pens or colored pencils.
3. Sheets of paper to create cards and drafts.
4. Dice to play.

Step by Step

1. Board Creation: Students, in groups, should draw and color a board with spaces representing each mathematical operation to be solved. They can decorate the board with drawings, stickers, whatever creativity allows!

2. Operation Development: Each space on the board must contain a mathematical operation of addition or subtraction with a missing value. Students should create the operations and write them on the spaces. They should provide a space for the answer to be written during the game.

3. Game Rules: Students should create the rules of the game, such as the number of moves per turn, what happens when they get an operation right or wrong, etc.

4. Playing and Learning: Once the board is ready, students should play against each other. The goal is to get as many operations right as possible, promoting a healthy and fun competition among participants.

Project Deliverables

At the end of the project, students should present the following:

1. The game board created by the group.
2. A written report detailing the creation and execution of the project.

The Introduction section of the report should contextualize the theme, present the project objectives, and justify the relevance of learning to solve operations with missing values.

The Development section should highlight the theory behind mathematical operations with missing values, explain in detail the creation of the game board, the rules established by the group, and the execution of the game.

In the Conclusion section, students should summarize the main points, explain the lessons learned, and draw conclusions about the project.

The Bibliography section should list the research sources used for the project, such as books, web pages, videos, among others.