Lesson study provides an opportunity for teachers to improve their knowledge and skills of classroom teaching, where a group of teachers collaboratively research, plan, and observe a series of lessons followed by ongoing discussions and reflections. While social interaction between group members plays an important role in collaborative learning…

In this study, a spreadsheet-based visualized Mindtool was developed for improving students' learning performance when finding relationships between numerical variables by engaging them in reasoning and decision-making activities. To evaluate the effectiveness of the proposed approach, an experiment was conducted on the "phenomena of climate…