1. Computational Thinking
Unti-1
Computational Thinking

2. Define computational thinking Draw flow charts
Lesson Objectives:
Define computational thinking
Draw flow charts
Use of comments in python
Understand variables - datatypes and python operators.

4. 1. Computational Thinking

5. How to make a cup of coffee:
Discuss

6. How to make a paper Airplane?
Discuss

7. How to calculate a rectangle room size?
Discuss

8. How to make a fish aquarium?
Discuss

9. Algorithm

10. Steps of Programming Process
Algorithms
An Algorithm is a set of rules or steps used to solve a problem.
Test your algorithm
Steps of Programming Process
Design an algorithm
Analyze Problem
Use the program
Implement algorithm

11. Flow Chart
A flow chart is a diagram that shows the steps used to solve a problem
Flow chart uses standard symbols to represent the different instructions

13. Challenge1: The sum of two numbers
Write an algorithm and design the flow chart for the following case:
The sum of two numbers

14. Challenge2:
Write an algorithm and design the flow chart for the following case:
Mariam got a land in a square shape , with an L Length and intended to sell the land by X price for single square meter . What will be the price of the land ?

15. Book Activity P-31 & 32

16. Book Activity Page 32

17. 2. Comments

18. Comments Practical Task
# Comments are used to write descriptive comments to help you debug and share codes.
Practical Task
Open python program and create new python file called “Lesson2”
Use comments tag to write your name
Your class

19. 3. Variables

20. 36980 +
12555

21. num Variable & Data Type
A variable is a named location in computer’s memory that is used to store data.
Each variable has a name and a value.
The name of the variable should not start with a number or a symbol.
The name of the variable should represent the data you be storing
num

22. Book Activity P

23. Open python program - “Lesson2” Type the following:
Practical Task
Open python program - “Lesson2”
Type the following:
name = input(“Enter Your Name” )
print (“Hello” , name)
Ask the user to enter age and then print
Your age is …

24. 4. Python Operators

25. Operands data that we are working with to perform operations
Python Operators
Operators are the instructions that tell the computer what to do with the data - (Mathematical Operators)
num=17
Total = num + 293
Operand
Operand
Operator
Operator
Operands data that we are working with to perform operations

26. Arithmetic Operators

27. 5. Data Types

28. Data types are used to classify the data used in a computer program.

29. Activity What’s your name ?
Work in pair .. And ask your colleague the following questions ..
What’s your name ?
How much do you expect today’s temperature ?
What is the value of PI ?

30. int float string Definition Operations can be carried out Example
Data Types
integer
byte
short
int
long
Floating Point
float
double
character
string
Definition
Operations can be carried out
Example
Integer (int)
Whole numbers (positive and negative)
+ , - , *, / , %, **
380 , -200
Float (float)
Decimal numbers (positive and negative)
2.6 , -9.1
String (string)
Characters / letters declared between “ “ +
“Year” , “Zayed”

31. End of Unit Activities