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Fitness Friend Algorithm Design for Health and Concentration Learning

jblanco avatar
jblanco
17 diapositives · 243 Views · Oct 31, 2019

Learn decomposition techniques, algorithm design using pseudocode and flowcharts, and the benefits of the Pomodoro Technique for health. Design a Fitness Friend wearable device. Understand the importance of testing and revising algorithms.

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Fitness Friend Algorithm Design for Health and Concentration Learning
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  1. Global Challenge Fitness Friend Lesson 2

  2. Why is regular exercise important to prevent heart disease? • keeps your heart healthy & increases fitness (can reduce coronary heart disease by 35%) • makes heart and blood circulatory system more efficient • lowers your cholesterol level • keeps blood pressure at healthy level • can help to manage weight (another risk factor for heart disease)

  3. We need to: • design a Fitness Friend: • a wearable device that will give an audio and visual reminder every 25 minutes to do some exercise.

  4. Pomodoro Technique • Developed by Italian Francesco Cirillo • Means tomato (traditionally uses a tomato timer!) • Uses a timer to break work into intervals to help concentration (usually 25 minutes) • Also ideal to remind you to move regularly!

  5. Decomposition • breaking down a complex problem into smaller, component parts. Algorithm • a sequence of instructions or rules to solve a problem • written for a person to follow to write code

  6. Learning objectives: • To decompose a large problem into smaller, component parts • To write a detailed, accurate algorithm using pseudocode and flowcharts • To test and debug algorithms and understand why this is important • To know what the ‘pomodoro technique’ is and that it can be helpful for health and concentration.

  7. We need to: • design a Fitness Friend: • a wearable device that will give an audio and visual reminder every 25 minutes to do some exercise.

  8. Fitness friend basic algorithm • Start • Count 25 minutes • Make audio sound • Display visual message • Repeat until stop

  9. Pseudocode • A simple way of describing a set of instructions (an algorithm) • No specific syntax (programming language)

  10. Fitness friend pseudocode algorithm 1 • START • REPEAT • Count 25 minutes (1500000 seconds) • OUTPUT audio beep for 1 second • OUTPUT visual display ‘Move!’ • STOP What is the problem with this algorithm? We do not tell it how many times to repeat, or when to stop .

  11. Fitness friend pseudocode algorithm 2 • When START button pressed • REPEAT until STOP button pressed • Count 25 minutes (1500000 seconds) • OUTPUT audio beep for 1 second • OUTPUT visual display ‘Move!’ • When STOP button pressed, STOP

  12. Input device • hardware that sends data to a computer system Output device • hardware that communicates the results of processed data from a computer system to the outside world

  13. Iteration • The repetition of a sequence Loops • A form of iteration • repeat until a certain condition is met

  14. Flowchart symbols Input / Output Start / Stop Decision Process Direction of flow

  15. Start Fitness friend flowchart • When START button pressed: • REPEAT • Count 25 minutes (1500000 seconds) • OUTPUT audio beep for 1 second • OUTPUT visual display ‘Move!’ • When STOP button pressed, STOP. InputStart button pressed Count 25 minutes Output Audio beep 1 second Output Visual display ‘Move!’ Is stop button pressed? No Yes 停止

  16. Wrap up questions: • How have you used decomposition today? • Why have we spent time designing algorithms today before starting to code? • How have you used iteration and loops? • How will pseudocode and/or flowcharts help you code? • Why has it been helpful to test and revise the algorithms today? • How can the pomodoro technique be helpful?

  17. Learning objectives: • To decompose a large problem into smaller, component parts • To write a detailed, accurate algorithm using pseudocode and flowcharts • To test and debug algorithms and understand why this is important • To know what the ‘pomodoro technique’ is and that it can be helpful for health and concentration.