I introduced the concept of open number lines today. Basically, an open number line is a completely blank number line. Our focus was to "navigate" on a number line. To begin, I gave the students two numbers, an "I have" and "I wish I had". Using any strategy they wanted, they were to begin with what they had and move to what they wished they had. For example, I gave the students the following: I have 17 I wish I had 24 I asked them to place the 17 on the number line and show me how they…