diff --git a/docs/lessons/charting/activity.md b/docs/lessons/charting/activity.md
index 96d3a4b8..0a776b15 100644
--- a/docs/lessons/charting/activity.md
+++ b/docs/lessons/charting/activity.md
@@ -13,14 +13,14 @@ Welcome! This activity will teach how to use the 1st micro:bit to chart the seco
 Let's measure `acceleration (mg)` and then `send number`. `Acceleration` is measured in **milli-gravities**, so a value of -1000 is equivalent to -1g or -9.81m/s^2. We will be able to get the acceleration value (g-force), in the specified "x" dimension. `Send number` will broadcast a number data packet to other micro:bits connected via radio.
 
 ```blocks
-radio.sendNumber(input.acceleration(Dimension.X))
+radio.sendNumber(input.acceleration(Dimension.X));
 ```
 
 We want to display the acceleration forever. In order to do so, we need a `forever` loop. A forever loop will repeat code in the background forever.
 
 ```blocks
 basic.forever(() => {
-    radio.sendNumber(input.acceleration(Dimension.X))
+    radio.sendNumber(input.acceleration(Dimension.X));
 })
 ```
 
diff --git a/docs/lessons/prank-wifi.md b/docs/lessons/prank-wifi.md
index 1afb395e..5c3a59d2 100644
--- a/docs/lessons/prank-wifi.md
+++ b/docs/lessons/prank-wifi.md
@@ -6,4 +6,4 @@ create a fake wifi app to trick your friends
 
 * [activity](/microbit/lessons/prank-wifi/activity)
 * [quiz](/microbit/lessons/prank-wifi/quiz)
-* [quiz](/microbit/lessons/prank-wifi/quiz-answers)
+* [quiz answers](/microbit/lessons/prank-wifi/quiz-answers)
diff --git a/docs/lessons/prank-wifi/quiz-answers.md b/docs/lessons/prank-wifi/quiz-answers.md
index 46ab622b..83b217fb 100644
--- a/docs/lessons/prank-wifi/quiz-answers.md
+++ b/docs/lessons/prank-wifi/quiz-answers.md
@@ -47,7 +47,7 @@ let yAccel = Math.abs(input.acceleration(Dimension.Y))
 let zAccel = Math.abs(input.acceleration(Dimension.Z))
 let sum = xAccel + yAccel + zAccel
 if (sum < 1400) {
-    basic.showleds(`
+    basic.showLeds(`
 . . . . .
 . . . . .
 . . # . .
@@ -71,7 +71,7 @@ let yAccel = Math.abs(input.acceleration(Dimension.Y))
 let zAccel = Math.abs(input.acceleration(Dimension.Z))
 let sum = xAccel + yAccel + zAccel
 if (sum >= 1400 && sum < 1680) {
-    basic.showleds(`
+    basic.showLeds(`
 . . . . .
 . . . # .
 . . # # .
@@ -95,7 +95,7 @@ let yAccel = Math.abs(input.acceleration(Dimension.Y))
 let zAccel = Math.abs(input.acceleration(Dimension.Z))
 let sum = xAccel + yAccel + zAccel
 if (sum >= 1680) {
-    basic.showleds(`
+    basic.showLeds(`
 . . . . .
 . . . . .
 . . . . .