AP Computer Science Practice Exam Today Review Thursday

AP Computer Science Practice Exam Today: Review Thursday Look at indicators for AP Exam Review Binary to Decimal Conversion Start the Pictures Lab

What does your score tell you? • Statistical analysis of the 2009 exam shows that over 98. 5 percent of students who answered correctly at least 27 out of 40 questions on the multiple-choice section received a 4 or a 5 for the whole exam.

AP Computer Science Scores to Grade Estimate

2014 -2015 AP CS Breakdown 5 4 3 2 1 20. 9% 23. 0% 16. 9% 7. 7% 31. 5% 24. 6% 15. 3% 7. 1% 28. 6% 2015 24. 4%

General Notes from AP Central • Wow – massive gains in AP Computer Science participation (25% growth) AND scores this year; big increase in % of students earning 4 s & 5 s! Count them: a whopping 66 AP Computer Science students out of 50, 000 worldwide earned all 80 pts possible on this year’s exam. Remember that AP exam standards are equated from year to year, so when scores go up, it's a direct indication of increased student mastery. Many AP Computer Science students did very well on Q 1 (2 D array processing–diverse array); >20% earned all 9/9 pts: spr. ly/6013 BB 5 bz The major gap in this year’s AP Computer Sci classrooms seems to be array list processing; Q 3 (sparse array): 47% of students got 0/9 pts