This paper explores the relationship between informal reasoning, creativity in mathematics,
and problem solving. It underscores the importance of environments that promote …

Gestures are usually regarded as a casual element of communication processes between
logicians. By contrast, we aim to show that gestures have played a significant role in logic …

The Doppler effect can be defined as the frequency shift suffered by a wave phenomenon,
when there is a difference in relative speed between the waves generated and their source …

Examining the quality of content knowledge of math teachers' pedagogy can be a way to
evaluate the quality of their teaching in different areas of mathematics. Since the purpose of …

Rational argumentation both in everyday life and in mathematics education makes an
important part of education and communication. When making arguments, it is essential to …