update lessons charting

docs/lessons/charting/quiz-answers.md

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+# charting quiz answers
+
+Measure the acceleration on the micro:bit in the "x" direction. 
+
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [glowing pendulum activity](/lessons/charting/acceleration)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Why are you creating a 'forever' loop?
+
+<br/>
+
+We are creating a forever loop to constantly display the appropriate brightness on the LED display.
+
+## 2. Write the line of code to measure the acceleration with respect to the "x" axis and display this value in a bar graph.
+
+<br/>
+
+```blocks
+led.plotBarGraph(input.acceleration(Dimension.X), 0)
+```
+
+## 3. After vigarously moving the micro:bit from side to side along the "x" axis for a sufficient amount of time,insert the Excel graph for displaying a line chart used to display trends over time. 
+
+<br/>
+
+![](/static/mb/line_chart.png)
+

docs/lessons/charting/quiz..md

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+# charting quiz
+
+Measure the acceleration on the micro:bit in the "x" direction. 
+
+## Name
+
+## Directions
+
+Use this activity document to guide your work in the [glowing pendulum tutorial](/lessons/glowing-pendulum/activity)
+
+Answer the questions while completing the tutorial. Pay attention to the dialogues!
+
+## 1. Why are you creating a 'forever' loop?
+
+<br/>
+
+## 2. Write the line of code to measure the acceleration with respect to the "y" axis and store this value in a local variable called 'acceleration'.
+
+<br/>
+
+## 3. After vigarously moving the micro:bit from side to side along the "x" axis for a sufficient amount of time,insert the Excel graph for displaying a line chart used to display trends over time. 
+
+