摘要

<正>近十年来,大约有二十位学者到美国特拉华大学访问.我有幸和他们交流与研讨数学教育问题.这些学者通过接触大量文献以及开展系列研讨,收获颇丰.迄今为止,发表在Educational Studies in Mathematics;International Journal of Science and Mathematics Education;Eurasia Journal of Mathematics,Science and Technology Education;