home.markdown

@@ -9,7 +9,7 @@
 **Activity duration:** ?? hours
 
 ## Goal
-To built a LEGO-car and equip it with a light-sensor, to make it follow a line, as per the instructions.
+To build a LEGO-car and equip it with a light-sensor, to make it follow a line, as per the instructions.
 
 ## Plan
 Follow the exercises one by one, and experiment with values and components.
@@ -18,6 +18,8 @@ Follow the exercises one by one, and experiment with values and components.
 
 ### Exercise 1 & 2
 
+*In these exercises, we measure light values with the LED turned on, and the LED turned off.* 
+
 The first measurement of light values, was done by placing the light sensor over the different colors and noting the values. The results appear in the table below:
 
 |             	| Sort 	| Hvid 	| Rød 	| Grøn 	| Blå 	| Grå 	|
@@ -40,6 +42,10 @@ With the LED turned off the observed values were lower, as would be expected, as
 
 ### Exercise 3
 
+*In this exercise we change the sample interval.*
+
+
+
 ### Exercise 4
 
 ### Exercise 5