Lesson3Week5.markdown

@@ -62,7 +62,7 @@ The telephone plays a sine tone at 100 percent volume. We then moved the sound s
 ### Exercise 3 - Sound Controlled Car
 
 #### Goal
-Our goal in this exercise is to test the soundctrcar.java so see how it affects the movement of the car. 
+Our goal in this exercise is to test the soundctrcar.java[4] so see how it affects the movement of the car. 
 
 #### Plan
 Our plan is to place the car at a table and make different sounds, claps or shouts, to see how we can control the car.