1. For information about “No Teacher Left Behind”, seehttp://www2.ed.gov/policy/elsec/leg/esea02/index.html(accessed Dec 2013) .
2. For information about chemistry in the National Science Education Standards, seehttp://www.acs.org/content/acs/en/education/policies/hsstandards.html(accessed Dec 2013) .
3. NGSS can be found athttp://www.nextgenscience.org/(accessed Dec 2013) .
4. For a description of AP chemistry courses and exams, see:https://apstudent.collegeboard.org/apcourse/ap-chemistry(accessed Dec 2013) .
5. For a description of international baccalaureate courses and exams, see:http://www.ibo.org/(accessed Dec 2013) .