All of the problems are programming problems. There are several animations; deal with these as you did in the previous few assignments.
The interactions pane will show only the examples (and their "right
answers") that you typed in the definitions pane; it will
not show the results of the animations. But turn it in anyway,
so I can tell that you tested your programs by themselves before
incorporating them into an animation. (If you don't do this, you'll lose
all the points for "test results" in the table below.)
If you're using check-expect
for your test
cases, you may not have anything in the interactions pane to turn in, so
don't bother.
Also turn in a log of how many errors of different kinds you encountered in the assignment, with brief comments describing each one ("mismatched parentheses" is self-explanatory, but more complex errors might need more description). Note that "errors" means not only error messages from DrScheme, but also wrong answers. You may do this using the PSP forms, or simply by keeping track in a text file or on paper and turning it in.
Error log: /30
(I'm not grading on how many or how few errors you encountered,
only on whether you recorded them correctly.)
I sha'n't actually grade all the problems; consider the others "practice". For each function I grade, see the table below, which has columns for each step in the design recipe. You won't turn in a separate skeleton, inventory, and definition, but rather write a skeleton, then add an inventory, then add a body to turn it into a complete definition. However, if you don't get the definition working, comment it out and you'll still get partial credit for a correct skeleton and/or inventory.
Contract | Examples | Skeleton | Inventory | Definition | Test results | Working animation (if applicable) |
---|---|---|---|---|---|---|
/5 | /5 | /5 | /5 | /10 | /5 | /10 |
Following directions | /10 |
Writing contracts from word problems | /10 |
Choosing examples | /10 |
Choosing names | /10 |
Coding | /10 |
Code re-use and function composition | /10 |