App-based scaffolds for writing two-column proofs
This paper presents apps designed to assist students in understanding and developing proofs in geometric theorems. These technologies focus on triangle congruence, triangle similarity and properties of parallelograms. Focus group discussions and initial testing of the apps revealed that the apps offered a more engaging medium for learning proving and were capable of facilitating proof-writing skills in geometry.
Debbie Marie B. Verzosa, Ma. Louise Antonette N. De Las Peñas, Maria Alva Q. Aberin & Len Patrick Dominic M. Garces (2019) App-based scaffolds for writing two-column proofs, International Journal of Mathematical Education in Science and Technology, 50:5, 766-778, DOI: 10.1080/0020739X.2018.1500654