Are you asking whether the first graders were more likely to guess than the third graders? I don’t know, it’s a long time ago and I haven’t consciously monitored the guessing frequency. But guessing was the obvious choice when someone didn’t know the answer, as it was always better than simply saying “I don’t know”.
When individual students were called upon, which group was more likely to hazard a guess, to try to reason through an answer?
Are you asking whether the first graders were more likely to guess than the third graders? I don’t know, it’s a long time ago and I haven’t consciously monitored the guessing frequency. But guessing was the obvious choice when someone didn’t know the answer, as it was always better than simply saying “I don’t know”.