Figure 2 shows the percentage of students, by grade level, who answered each of the questions correctly. For example, 100% of the 3rd graders answered question 1 correctly, identifying the atom diagram as oxygen. Seven of the twelve questions were answered correctly by at least 50% of the fifth graders. And at least 25% of the fourth graders answered the challenging final three questions correctly. Only a small fraction of the students received full credit for Question 4, which involved locating all eight hydrogens on the skeleton structure of vanillin. However, all three grades averaged between 40% and 50% for that question when partial credit for adding some or most of the hydrogens was added. Overall about 75% of participants in the program answered question 6 correctly and properly identified the mistake in the structure of acetic acid.
Figure 2 shows the percentage of students, by grade level, who answered each of the questions correctly. For example, 100% of the 3rd graders answered question 1 correctly, identifying the atom diagram as oxygen. Seven of the twelve questions were answered correctly by at least 50% of the fifth graders. And at least 25% of the fourth graders answered the challenging final three questions correctly. Only a small fraction of the students received full credit for Question 4, which involved locating all eight hydrogens on the skeleton structure of vanillin. However, all three grades averaged between 40% and 50% for that question when partial credit for adding some or most of the hydrogens was added. Overall about 75% of participants in the program answered question 6 correctly and properly identified the mistake in the structure of acetic acid.
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