Showing Proofs, Assessing Difficulty with GeoGebra Discovery
This provides incremental improvements to automated reasoning tools for geometry education and research.
The authors introduced a ShowProof command in GeoGebra Discovery that outputs proof steps and a difficulty grade for geometric statements, demonstrating its performance through examples.
In our contribution we describe some on-going improvements concerning the Automated Reasoning Tools developed in GeoGebra Discovery, providing different examples of the performance of these new features. We describe the new ShowProof command, that outputs both the sequence of the different steps performed by GeoGebra Discovery to confirm a certain statement, as well as a number intending to grade the difficulty or interest of the assertion. The proposal of this assessment measure, involving the comparison of the expression of the thesis (or conclusion) as a combination of the hypotheses, will be developed.