“…For example, the students who learned mathematics with a high level of cognitive demands problems are likely to develop high-order thinking skills, such as analyzing, reasoning, justifying, and evaluating. Conversely, the students who learned mathematics with a low level of cognitive demands tasks tended to develop low-order thinking skills, such as recalling and computation (Mullis et al, 2012;Tan et al, 2018). As different learning opportunities lead to different mathematical outcomes (Bellens et al, 2020;Hadar, 2017;van den Ham & Heinze, 2018), developing a high-quality mathematics textbook is a critical issue for educators.…”