FINAL COMMENTARY: Looking Back on our Selected Writings from Fifty Years of Delta-K

Looking back on it now, our approach to choosing the 50 articles was, in essence, to solve a simpler problem. In other words, we decided to first worry about whether or not we could accurately reflect and celebrate delta-K and the teaching and learning of mathematics in Alberta for one decade—just one. But, where to begin? We began with the seventies because there was no doubt (for either of us) that we had to include an article on the metric system. Our task had now been “reduced” from fifty articles from fifty years to nine articles (and one article on the metric system) from the seventies. While our concerns were not fully alleviated by the end of our discussion, we both agreed that reading through the ten years of delta-K from the seventies and putting together our own top ten lists (plus a few “extra” articles) was a manageable task. At this point we went our separate ways (for a few weeks).