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p rogramming in python

p rogramming in python. Lesson 2. Starter Activity. Complete the starter activity. Recap Starter. Recap starter What is wrong with it? print(“hello) number = 17 number 17 print(“Your number is”,number ) PRint (“bye”). print(“hello”). print(“bye”). Lesson Outcomes.

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p rogramming in python

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  1. programming in python Lesson 2

  2. Starter Activity Complete the starter activity

  3. Recap Starter • Recap starter • What is wrong with it? • print(“hello) • number = 17 • number • 17 • print(“Your number is”,number) • PRint(“bye”) print(“hello”) print(“bye”)

  4. Lesson Outcomes • All-Level 4- Know the key data types discussed in lesson • With help be able to write a variable with help • To be able to store a user inputted variable with help • Understand and demonstrate the basic data types • Most-Level 5- Be able to write a these with little help. • Some-Level 6- independently write these and adapt them

  5. Recap • Lets recap what we learnt last lesson • What is a program? • A program is a sequence of instructions that specifies how to perform a computation. • What is syntax? • Refers to the spelling and grammar of a programming language

  6. Variables • One of the most powerful features of a programming language is the ability to manipulate variables. • A variable is a name that refers to a value. • The assignment statement creates new variables and gives them values: • >>> message = "What's up, Doc?“ • >>> n = 17

  7. Variables Assignment/Input >>> N = 17 >>> N >>> 17 Variable Result/Output

  8. Task 1 • Using variables to demonstrate basic math code. + - / * • E.g. • Number 1 + number 1 • Variables • If you are stuck you can download the Help program

  9. Task 2 • Have a look at this line of code • print(“Your number is”,number) • number is a variable • The comma separates the text and the variable • Your task is to write a code that prints a name and displays it. Have a look at the starter task to help you.

  10. input • Now we know what a variable is we can use the input statement to store things. • >>> print(“what is your name”) • >>>name = input() • >>>print(name) • Copy this on the board • Adapt this code to something of your choosing e.g. a user inputs their details then you display them

  11. Data types • Integer • Float • String • Boolean • There are mean other numbers but we will stick to these main ones

  12. Data Types • Examples of strings are: 'Hello', "Goodbye". To input a string, use input() • Examples of integers are: 2, 6, -89, 45421. To input an integer at the screen, use int(input()) • Examples of floats are: 2.4, 6.0, -89.54, 111.111. To input a float number at the screen, use float(input()) • A boolean variable always has the value True or False. Remember Python is case sensitive so the capital 'T' and 'F' really matters!

  13. Data types What is a string? Examples of strings are: 'Hello', "Goodbye". How do you enter it? Input() What is a integer are: 2, 6, -89, 45421. How do you enter it? int(input()) What is a float number How do you enter it? float(input()) What is a boolean? has the value True or False. Variableboolean = True

  14. Task 4 • Have a go at entering these values and displaying them • strings are: 'Hello', "Goodbye". To input a string, use input() • integers are: 2, 6, -89, 45421. To input an integer at the screen, use int(input()) • 2.4, 6.0, -89.54, 111.111. To input a float number at the screen, use float(input()) • A boolean variable always has the value True or False. Remember Python is case sensitive so the capital 'T' and 'F' really matters!

  15. Task 3 • Your code should look something like this

  16. Self Evaluation Task • Open the Self Evaluation Task. • Have a look at the outcomes of the lesson. • Write down the level you think you got this lesson • Self evaluate your progress this lesson and write your Level and your Student Next Step.

  17. Plenary • Now we know what a variable is we can use the input statement to store things. • >>> print(“what is your name”) • >>>name = _________ • >>>print(name) input()

  18. Plenary • Integer • _______ • String • _______ • There are mean other numbers but we will stick to these main ones Float Boolean

  19. Plenary • What is a string? • Examples of strings are: • How do you enter it? • Input() • What is a integer • are: • How do you enter it? • int(input()) • What is a float number • How do you enter it? • What is a boolean? • has the value True or False. • Variableboolean = True 'Hello', "Goodbye". 2, 6, -89, 45421. float(input())

  20. Acknowledgments • Some resources and lessons were taken from http://www.pythonsummerschool.net/

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