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Year 9 - Computing

Data structure projects in Python

Python programming with sequences of data

Unit Summary

In this unit pupils will discover how data is represented and processed in sequences, such as lists and strings. They will cover a spectrum of operations on sequences of data, that range from accessing an individual element to manipulating the entire sequence though real world practical activites.

Lesson Summary

You will learn to apply your understanding of data structures and iteration to investigate a problem.

Key Notes

  • Data can be used to investigate a problem.
  • Programming tools can be used to perform investigations on data held in data structures.
  • When investigating a problem using code, it is useful to follow the software development life cycle.
  • Data structures, iteration and operations can be combined to make more complex programs in Python.

Vocabulary To Learn

  • investigate: examine data carefully to find out the truth about something
  • rounding: reducing the number of digits in a number by examining the digits that follow that will be discarded

Common Mistakes To Avoid

  • Python will automatically round numbers to the nearest whole number.

3 Quick Questions (With Answers)

1. Describe the system or process from this lesson in clear steps.

Data can be used to investigate a problem. Programming tools can be used to perform investigations on data held in data structures.

2. Define this computing term and give one practical example. 'investigate'

examine data carefully to find out the truth about something. Add one real device or system example to prove understanding.

3. Correct this common computing misconception.

Mistake: Python will automatically round numbers to the nearest whole number. Correction: Python will perform calculations based on the values that have been provided and generate an answer that can include fractional parts. If you want to reduce the number of digits, you can use the round() function.

More Lessons In This Unit

Browse all guides in the Year 9 Computing guide library.