Contextualization

Cartography is the science responsible for the graphical representation of the Earth. It is present in our daily lives in ways we do not always perceive, from using a GPS application to analyzing data in scientific research. With the evolution of technology, modern cartography allows the creation of interactive and dynamic maps that can be updated in real-time and contain a wealth of information about the represented terrain.

Scale is a fundamental element of maps and refers to the proportion relationship between the size of the map and the actual area it represents. On the other hand, cartographic projection is a way to represent the Earth's sphere on a two-dimensional surface, such as a sheet of paper or a computer screen. There are several ways to make this representation, each with its advantages and distortions.

Geotechnology, in turn, refers to the use of technologies to collect, store, process, and analyze geographic information. Elements such as GPS, Geographic Information Systems (GIS) software, and drones are examples of geotechnology tools.

To delve deeper into the subject, we suggest some resources:

1. Book: "Cartography: representation, communication, and visualization of spatial data" by Ana Clara Mourão Moura.

2. Brazilian Institute of Geography and Statistics (IBGE) Portal - Cartography: link

3. Video: Cartographic Projections: link

4. Geoconceição website, with information and tutorials on geotechnologies: link

Please note that the above resources will be essential to support the theoretical part of the project and provide rich material for the general debate on the topic.

Practical Activity: "Collaborative Mapping: Scale, Projection, and Geotechnology in Practice"

Project Objective

The objective of this project is to allow students to understand and apply in a practical way the concepts of scale, projection, and geotechnology. For this, they will need to carry out a collaborative mapping of an area of interest using digital terrain models and Geographic Information Systems (GIS) software.

Detailed Project Description

Students will be divided into groups of 3 to 5 members. Each group must choose an area of interest within the municipality to carry out the mapping. The area can be the neighborhood where the school is located, a city park, a region of cultural or historical interest, among others.

The project will be divided into stages:

1. Research and Planning: Students will research the chosen area, understand its geographical, historical, and cultural characteristics. They should plan their mapping, defining the scale and projection to be used, taking into account the area's characteristics and the mapping's objective.

2. Data Collection: Students will collect geographic data from the area using geotechnology tools such as GPS and drones, as well as data made available by public agencies and research institutions. They may also conduct interviews with people living or working in the area to obtain qualitative information for the mapping.

3. Analysis and Map Development: With the data in hand, students will analyze the information and develop the map of the area using GIS software. They should use appropriate symbology, legends, and scales to represent the collected data.

4. Presentation and Discussion of Results: Each group will present their map to the class, explaining the decisions made during the process and discussing the results obtained. They should reflect on the limitations and potential of collaborative mapping and geotechnology.

Required Materials

• Internet access
• Computers with GIS software installed (e.g., QGIS or ArcGIS)
• GPS and/or drones (optional)
• Field notebook for records and observations

Detailed Step-by-Step

1. Research and Planning: Research the chosen area, gather information about its geographical, historical, and cultural characteristics. Define the scale and projection for mapping. Plan which information will be collected and how.

2. Data Collection: Carry out on-site data collection, if possible, using GPS or drones. Seek geographic data made available by public agencies or research institutions. Conduct interviews with residents or people working in the area to obtain qualitative information.

3. Analysis and Map Development: Analyze the collected data, identify patterns, trends, and peculiarities of the area. Based on this analysis, develop the map in GIS software, using appropriate symbology, legends, and scales.

4. Presentation and Discussion of Results: Present the map to the class, explaining the decisions made during the process and discussing the results obtained. Reflect on the limitations and potential of collaborative mapping and geotechnology.

After completing the practical part, students should write a report containing:

1. Introduction: In this section, they should contextualize the chosen area for mapping, explaining its relevance and the motivations for the choice. They should also present the project's objectives and the relationship with the concepts of scale, projection, and geotechnology.

2. Development: Here, students should explain the theory behind the concepts addressed in the project, detail the methodology used for mapping, and present and discuss the results obtained. They should explain the choices made regarding scale and projection, data collection and analysis, and map development.

3. Conclusions: In this section, students should summarize the main points of the work, explain the learnings obtained, and draw conclusions about the project. They may also suggest improvements or expansions for the project.

4. Bibliography: Finally, they should indicate all sources of information used, such as books, websites, videos, as well as consulted data and maps.