A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL. The file type is application/pdf.
application/pdf
中村 好則. "数学科における中高接続を意識した教材の開発 : 「連続する自然数の和」の問題の発展的扱いを通して." 47-56