diff --git a/docs/lessons.md b/docs/lessons.md
index ec64c9f4..2592ee8b 100644
--- a/docs/lessons.md
+++ b/docs/lessons.md
@@ -6,7 +6,7 @@
 ### ~column 
 
 ## O365 Integration
-* [Data Experiments: Graphing & Charthing](/lessons/charting), create a charting app for simulating and measuring the actual temperature 
+* [Data Experiments: Graphing & Charting](/lessons/charting), create a charting app for simulating and measuring the sensor data of acceleration, temperature, light level, and rotation 
 * [Probability Experiments: Coin Toss App](/lessons/probability), create an charting app to demonstrate probability using any coin
 
 ## Beginner
diff --git a/docs/lessons/charting.md b/docs/lessons/charting.md
index 6d3c5a8d..27d04795 100644
--- a/docs/lessons/charting.md
+++ b/docs/lessons/charting.md
@@ -8,11 +8,11 @@ Acceleration
 
 ## Quick Links
 
-* [Graphing Temperature](/lessons/graph-temperature)
-* [Graphing Acceleration](/lessons/charting) 
-* [Graphing Light Level](/lessons/light-level)
-* [Graphing Rotation](/lessons/rotation)
-* [Graphing Magnetic Force](/lessons/magnetic-force)
+* [Graphing Temperature](/lessons/chartingtemperature)
+* [Graphing Acceleration](/lessons/charting/accleration) 
+* [Graphing Light Level](/lessons/charting/light-level)
+* [Graphing Rotation](/lessons/charting/rotation)
+* [Graphing Magnetic Force](/lessons/charting/magnetic-force)
 
 ## Prior learning/place of lesson in scheme of work
 
diff --git a/docs/lessons/charting/acceleration.md b/docs/lessons/charting/acceleration.md
index 6f8301ea..f1261580 100644
--- a/docs/lessons/charting/acceleration.md
+++ b/docs/lessons/charting/acceleration.md
@@ -1,11 +1,27 @@
 # charting activity
 
-Measure the acceleration on the micro:bit in the "z" direction. 
+Measure the acceleration on the micro:bit in the "x" direction. 
 
 ### ~avatar avatar
 
 Welcome! This activity will teach how to use the 1st micro:bit to chart the second micro:bit's acceleration in the "x" direction. Let's get started!
 
+
+### ~
+Let's measure `acceleration (mg)` in the "x" direction. Get the acceleration value (milli g-force), in one of three specified dimensions.
+
+
+```blocks
+input.acceleration(Dimension.X)
+
+```
+
+### ~
+
+
+
+```blocks
+
 ### ~
 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.