Homework

*** Let’s do some Sapling problems now. Take me to the login. ***

Graded homework assignments are administered using the Sapling Learning online homework system (go here for information on how to get started with Sapling). Due dates are listed at the bottom of this page.

Our Sapling system also provides ungraded practice problems. Please make sure you understand the different expectations for graded and ungraded work.

  • Short graded assignments (approx. 4-12 problems) have been created for Days 1-23. These assignments are usually posted right after the TuTh class meets and are available for approx. 10 days (see calendar at bottom of page). If you are unable to access or attempt an assignment for some reason, contact Alan to see what can be done to fix the problem and/or arrange an extension.
  • A much larger set of ungraded practice problems (approx. 10-30) have also been created for Days 1-23. Two copies of the practice problems are available (the copies may differ because some problems are randomly drawn from a pool of related problems). The practice assignments can be worked at any time during the semester (Aug 31-Dec 13). It doesn’t matter which set of problems, the graded ones or the ungraded ones, you try first.
  • Another set of ungraded practice problems have been created for special topics that appear either in lab (IR/NMR Spectroscopy) or late in the semester (molecular orbitals (MOs), synthetic planning). These topics appear only on Quiz 5 (IR/NMR) and/or the Final Exam (all special topics) so these practice problems will be made available late in the semester. To access these problems, log in to Sapling and scroll to the bottom of the practice problem list.

Note: While there are some advantages to online practice (instant feedback, multiple attempts), it is also important to develop good drawing skills. Neuroscientists have discovered that time spent drawing and handwriting not only enhances your ability to draw quickly and clearly, it might also help you remember chemical information and relationships. Drawing practice will also make your work on quizzes and exams more reliable and efficient. To get drawing practice, either draw your Sapling answers on a pad before you enter them online, or combine Sapling practice with additional practice with end-of-chapter problems in your textbook.

*** Let’s do some Sapling problems now. Take me to the login. ***


Sapling Assignment Calendar (graded assignments only)

          • Day 23, 11/27-12/9 (closed)
          • Day 22, 11/24-12/6 (closed)
          • Day 21, 11/23-12/5 (closed)
          • Day 20, 11/18-12/1 (closed)
          • Day 19, 11/9-20 (closed)
          • Day 18, 11/7-18 (closed)
          • Day 17, 11/2-13 (closed)
          • Day 16, 11/1-12 (closed)
          • Day 15, 10/25-11/4 (closed)
          • Day 14, 10/23-11/2 (closed)
          • Day 13, 10/11-29 (closed) (past students have found these difficult so try the practice problems first)
          • Day 12, 10/10-28 (closed)
          • Day 11, 10/4-15 (closed)
          • Day 10, 10/1-11 (closed)
          • Day 9, 9/26-10/7 (closed)
          • Day 8, 9/24-10/5 (closed) (note special Sapling instructions/training for drawing stereochemistry with wedges and dashes; you must show ALL FOUR bonds in your answer – a little uncertainty: I’m unsure if you need this training for Day 8, but you definitely need it for Days 9-25)
          • Day 7, 9/20-30 (closed)
          • Day 6, 9/19-29 (closed)
          • Day 5, 9/13-23 (closed)
          • Day 4, 9/9-21 (closed)
          • Day 3, 9/6-16 (closed)
          • Day 2, 9/1-12 (closed)
          • Day 1, 9/1-11 (closed)

    *** Let’s do some Sapling problems now. Take me to the login. ***