diff --git a/www/assignments/3.scrbl b/www/assignments/3.scrbl
index cb5ffdf1..6ed3d2c3 100644
--- a/www/assignments/3.scrbl
+++ b/www/assignments/3.scrbl
@@ -82,7 +82,7 @@ Here's the AST definition for the added primitives and @racket[cond]:
 ;; ...
 ;; | 'abs | '- | 'not
 
-(struct Cond (cs e)    #:prefab)
+(struct Cond (cs es el)    #:prefab)
 )
 
 There is one new kind of expression constructor: @racket[Cond].  A
diff --git a/www/notes/mug.scrbl b/www/notes/mug.scrbl
index 00429f99..4f1bb8c0 100644
--- a/www/notes/mug.scrbl
+++ b/www/notes/mug.scrbl
@@ -69,6 +69,7 @@ characters:
 Let's consider how strings were previously compiled.  Here's an assembly program
 that returns @racket["Hello!"]:
 
+@;{
 @ex[
 (require loot/compile)
 (seq (Label 'entry)
@@ -88,6 +89,7 @@ We can run it just to make sure:
        (compile-string "Hello!")
        (Ret))))
 ]
+}
 
 Notice that this program dynamically allocates the string by executing
 instructions that write to memory pointed to by @racket['rbx] and
diff --git a/www/software.scrbl b/www/software.scrbl
index 74da958b..d6edec32 100644
--- a/www/software.scrbl
+++ b/www/software.scrbl
@@ -57,14 +57,7 @@ This course will make use of the following software:
   system such as clang.}
 ]
 
-Instruction for using each system are below:
-
-@itemlist[
-@item{@secref{Linux}}
-@item{@secref{mac}}
-@item{@secref{Windows}}
-@item{@secref{GRACE}}
-]
+@table-of-contents[]
 
 @section[#:tag "Linux"]{Using Linux}
 
diff --git a/www/syllabus.scrbl b/www/syllabus.scrbl
index d5598ed6..f1ec4823 100644
--- a/www/syllabus.scrbl
+++ b/www/syllabus.scrbl
@@ -308,13 +308,12 @@ percentages:
   (list "Midterms (2)" "25%")
   (list "Final project" "15%")]
 
-Final letter grades are assigned following the University of
-Maryland's "97 A+ Grading Scheme":
+Final letter grades are assigned following this grading scheme:
 
 @tabular[#:style 'boxed @;#:sep @;"|" @;@hspace[1]
-         (list (list "A+" "[100,100]" "B+" "(92,87]" "C+" "(80,77]" "D+" "(70,67]" " " " ")
-	       (list "A"  "(100,97]"  "B"  "(87,84]" "C"  "(77,74]" "D"  "(67,64]" "F" "(60,0]")
-	       (list "A-" "(97,92]"   "B-" "(84,80]" "C-" "(74,70]" "D-" "(64,60]" " " " "))]
+         (list (list "A+" "[100,97]"  "B+" "(90,87]" "C+" "(80,77]" "D+" "(70,67]" " " " ")
+	       (list "A"  "(97,94]"   "B"  "(87,84]" "C"  "(77,74]" "D"  "(67,64]" "F" "(60,0]")
+	       (list "A-" "(94,90]"   "B-" "(84,80]" "C-" "(74,70]" "D-" "(64,60]" " " " "))]
 
 This table uses interval notation, so "(@math{x},@math{y}]" means any
 number less than @math{x} and greater than or equal to @math{y}.