Walter Jesus da Costa Martins Filho, Fernando Roberto Braga Colares, Gustavo Nogueira Dias, Cássio Pinho dos Reis, Gilberto Emanoel Reis Vogado, Saul Rodrigo da Costa Barreto, Alessandra Epifanio Rodrigues, Vanessa Mayara Souza Pamplona et al.
A new teaching method is proposed to derive metric relations in right triangles using a grid.
Metric relations in right triangles are a difficult topic for students, and the traditional approach based on triangle similarity can create learning barriers.
Using a grid as a visual tool, a teaching procedure is designed and presented to directly derive metric relations without going through triangle similarity.
A new teaching method using a grid is proposed, offering an alternative to reduce the difficulties of the traditional approach and aid student understanding.