diff --git a/src/teaching/cse-250/2022fa/slide/9b-LinkedListIterator.erb b/src/teaching/cse-250/2022fa/slide/9b-LinkedListIterator.erb
index d33eafa9..d63d4ec0 100644
--- a/src/teaching/cse-250/2022fa/slide/9b-LinkedListIterator.erb
+++ b/src/teaching/cse-250/2022fa/slide/9b-LinkedListIterator.erb
@@ -144,7 +144,7 @@ textbook: "Ch. 7"
   
   <p>Implementing <tt>insert</tt>.</p>
 
-  <pre style="transform: scale(0.8); margin-top: -50px; margin-bottom: -50px;" class="fragment"><code class="scala">
+  <pre style="transform: scale(0.8); margin-top: -50px; margin-bottom: -50px;"><code class="scala">
     def insert(idx: Int, value: T): Unit =
     {
       if(idx == 0){ 
@@ -207,10 +207,10 @@ textbook: "Ch. 7"
     def sum(list: List[Int]): Unit =
     {
       val total: Int = 0
-      val curr = list.head
-      while(curr.isDefined){ 
-        total += curr.get.value
-        curr = curr.get.next
+      val current = list.head
+      while(current.isDefined){ 
+        total += current.get.value
+        current = current.get.next
       }
       return total
     }