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Michal Moskal
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# charting lesson
measure the acceleration on the micro:bit in the "z" direction #acceleration #var #docs #if #show
## Topic
Acceleration
## Quick Links
* [activity](/microbit/lessons/charting/activity)
## Class
Year 7
## Prior learning/place of lesson in scheme of work
Learn the functions of **on data received**, **send number** and **receive number** and chart `plot bar graph` for `acceleration` in the "x" dimension.
## Documentation
* **forever** : [read more...](/microbit/reference/basic/forever)
* **acceleration** : [read more...](/microbit/reference/input/acceleration)
* **plot bar graph** : [read more...](/microbit/reference/led/plot-bar-graph)
* **on data received** : [read more...](/microbit/reference/radio/on-data-received)
* **send number** : [read more...](/microbit/reference/radio/send-number)
* **receive number** : [read more...](/microbit/reference/radio/receive-number)
## Objectives
* learn how to repeat code in the background forever
* learn how to get the acceleration value (g-force), in one of three specified dimensions
* learn how to display a vertical bar graph based on the value and high value.
* learn how to register code to run when a packet is received over radio
* learn how to broadcast a number data packet to other micro:bits connected via radio
* learn how to read the next radio packet as a number data packet
## Progression Pathways / Computational Thinking Framework
#### Algorithms
* Uses logical reasoning to predict outputs, showing an awareness of inputs (AL)
* Represents solutions using a structured notation (AL) (AB)
* Can identify similarities and differences in situations and can use these to solve problems (pattern recognition)(GE)
#### Programming & Development
* Creates programs that implement algorithms to achieve given goals (AL)
* Uses a variable and relational operators within a loop to govern termination (AL) (GE)
Computational Thinking Concept: AB = Abstraction; DE = Decomposition; AL = Algorithmic Thinking; EV = Evaluation; GE = Generalisation
## Activity
* time: 20 min.
* [activity](/microbit/lessons/charting/activity)