Approach 2 allowed the PSTs to notice how being Stuck allowed them to reflect, to think about what to do, to think about what they know and didn’t know, to be challenged, and to think mathematically. Thus they were necessary to learn to think when solving problems and to work on such problems. Recording Stuck allowed them to persevere because they knew what they needed to overcome and think through to continue. They quit only when they kept cycling to the same stuck and needed help to shift their thinking out of it. They needed someone to intervene. One explained, “I got to a point where I needed someone to give me a hint. … I see the importance of working with others.”