I was unaware of this new jargon until today. I welcome one of them in particular, the "number bond", because it draws specific attention to something valuable

I was unaware of this new jargon until today. I welcome one of them in particular, the "number bond", because it draws specific attention to something valuable that I was never able to transmit to my teenagers. They have always believed that understanding the concepts is the sole goal of education, but I have always maintained that building a large base of instantaneous recall, through practice, also has enormous value. "Number bond" explicitly addresses that.