AUGMENTED REALITY AND THE CONSTRUCTION OF MANIPULABLE MODELS: A PROPOSAL FOR THE TEACHING AND LEARNING OF GEOMETRIC SOLIDS
Teaching Geometry, Augmented Reality, Manipulable Models, Descriptive and Inferential Statistics.
Mathematics, according to common sense, demands a significant level of abstraction from students to understand and grasp content. This prerequisite is necessary even in Geometry, where some topics are more tangible, given their intrinsic nature as descriptions of physical entities. However, despite the possibility of visualizing certain geometric shapes, some problems associated with understanding certain graphical representations remain. This reality applies to the spatial perception of geometric solids and their flat patterns. Seeking to solve or mitigate this problem related to the teaching of solids, the research presented here developed a teaching methodology that, through a didactic sequence, sought to combine the three-dimensional visualization of geometric solids based on augmented reality, provided by the educational software Sólidos RA, with the construction and physical manipulation of geometric models. These strategies were combined with the calculation of areas and volumes, based on both digital and physical models. This combination of methods aimed to provide more active and meaningful learning, overcoming the limitations of traditional methods and fostering a better understanding of the geometric properties of solids. It is worth noting that the development of the teaching sequence followed the recommendations of the BNCC (BRASIL, 2018) and aimed to achieve the objectives and develop the skills required. For experimental and validation purposes, the teaching sequence was used with 26 students from two 8th-grade classes at Colégio Inovação, in the municipality of Guarantã do Norte, Mato Grosso. During the experiment, student opinion data were collected, and descriptive and inferential statistical techniques were applied to these data. Data processing and analysis led to the conclusion that the teaching sequence was effective and subsequently validated, proving effective in mitigating the problems initially cited.