闫森

Yan Sen: public information about this author is limited. At present, we know only that eight of the author's works are included in this library, all centered on mathematics teaching and popular science. The representative titles all follow the pattern of "Fun ... Designs for Mathematics Teaching," covering areas such as fun phenomena, fun problem types, fun famous figures, fun stories, fun sudoku, fun games, and fun riddles. This suggests an approach that enters the mathematics classroom from many angles, using stories, games, puzzles, and sudoku to turn abstract mathematical knowledge into content that students can easily approach. The works are generally classified under popular science and education, indicating that the target readers are mainly students and frontline teachers. Judging from the available titles, Yan Sen focuses on making mathematics learning enjoyable and on the concrete implementation of teaching design rather than on theoretical monographs; the author is good at breaking mathematical knowledge into operable, participatory classroom activities that make learning more engaging. The style emphasizes practicality and inspiration, seeking to spark readers' interest in mathematics in a relaxed atmosphere. Because biographical and background information is lacking, the author's nationality, education, and personal experience cannot be confirmed, and the above introduction is based solely on the works in this library.