pyhon

​Introduction To Loops In Python

​Arwa Hassan

​Learning objective 

By the end of this lesson, you will be able to:

 

1-Learn what a loop is.

2-Why do we use a loop in programming?

3-Types of loops in python.

4- How to execute a loop using python.

5-Write different programs in python using loops.

Some text here about the topic of discussion

Open Ended

Why do we use a loop in programming?

​https://www.w3schools.com/python/trypython.asp?filename=demo_compiler

​compiler 1

​

​https://www.programiz.com/python-programming/online-compiler/

​compiler 2

​

Multiple Choice

What is the output?

 

for N in range(3):  

print("Mohammad", N )

• Mohammad 1

  Mohammad 2

  Mohammad 3

• Mohammad 0

  Mohammad 1

  Mohammad 2

• Error

• Mohammad0

  Mohammad1

  Mohammad2

Multiple Choice

for N in range(5): 

print("Mohammad", N+2 )

• Mohammad 2

  Mohammad 3

  Mohammad 4

  Mohammad 5

  Mohammad 6

• Mohammad 2

  Mohammad 4

  Mohammad 6

• Mohammad 0+2

  Mohammad 1+2

  Mohammad 2+2

  Mohammad 3+2

  Mohammad 4+2

• Error

Open Ended

What if you added the third parameter?

Copy the result and answer what does the third parameter do?

​you will be able to increment the sequence with the number

Grade 11 ​

Open Ended

Hint :

If we have a variable called ( number ) and it has a value of 2

print(number * ("!" ) )

would result

( !! )

Open Ended

What is the different between code1 and code2?

Open Ended

Before we continue with the loop!

What is the Boolean variable ??

Open Ended

What is the effect of having the space before else?

What are the outputs in the first example and the second one?

​Exercise:

Write a program that repeats one sentence three times.

Or

• Write a program that prints from 0 to 10 except for 3 or 6.

Or

• Write a program using for loop to print how many times the user enters the password incorrectly.

​Nested loop

​Grade 11

​What is the nested loop?

A nested loop is a loop inside another loop.

Outer loop.

Inner loop.​

Some text here about the topic of discussion

Multiple Choice

How many times the print statement will be executed

• 5 times

• 3 times

• 15 times

• 1 time

Open Ended

What have you learned today ?!

Open Ended

Please give feedback, and tell me from 1 to 10 how much you understood the lesson. How can I improve the lesson?