Some research deals with analyzing school math books using the quantitative and qualitative approach ... In your opinion, what is the best, with additions to articles for that
You might find useful papers, and information, in the Proceedings of the International Conference on Mathematics Textbook Research and Development that we held at the University of Southampton in 2014; the full proceedings are online at the link below.
I and a colleague of mine are interested in designing research / observations on the similarities and differences of one school lesson covered in math textbooks for first grade high schools from different countries.
Dear colleague Jones, Thank you for your suggestion.
Content standards: They describe what a student should learn and include criteria for number and operations on it, algebra, engineering, measurement, and data analysis.