## GTG on Problem Solving in Physics Textbooks

*(JOSIP SLISKO, Facultad de Ciencias Físico Matemáticas, Benemérita Universidad Autónoma de Puebla, Puebla, México)*

Numerical problem solving plays a very important role in physics teaching in two related domains. The first is concept understanding and application and the second is practicing of mathematical modeling. Being so, many physics textbook authors try to have the best possible collection of solved and end-of-chapters, both as a learning opportunity for students and a market advantage for those teachers who can decide which textbook their students will use.

Although students´ performances in physics problem solving have been focused in research for a few decades, there are insufficient research data about how physics problems are treated in physics textbooks. That is little bit surprising taking into account how physics textbooks shape teaching and learning.

A few potentially interesting research lines are:

- Do physics textbooks inform students about expert-like steps in physics problem solving?
- Are those steps explicitly used in solved problems and required in to-be-solved problems?
- How are physics problems contextualized?
- Do physics textbooks offer students open problems or problems with multiple solutions?

For further information, please email to: jslisko[at]fcfm.buap.mx.