These implications should be seen in relation to some developments in primary and secondary school mathematics education, such as the increasing pleas for reconceptualizing the elementary mathematics curriculum to obtain opportunities for algebraic thinking and the generally accepted learning principles that students should construct new mathematical concepts and procedures starting from their available strategies and prior knowledge and that being able to use different mathematical tools and strategies in a flexible and reflective way is on of the major goals of mathematics education. 나랑 상관있는 것도 아닌데 보니까 궁금해졌어. such as the increasing pleas for reconceptualizing ~ curriculum /to obtain ~ for alagraic thinking / and the ~ principles that ~ and that ~? such as ~ curriculum / to obtain ~ thinking and ~ principles / that ~ and that~? and 가 너무 많아.-_-