Full lesson	Create for a teacher a set of content for giving a lesson, beginning with the lesson plan. Each new block of materials must begin with an H1 heading (other subheaders must be H2, H3, etc). When you describe required pictures, write those descriptions in curly brackets, for example: {A picture of a triangle}
Which subject	Computer science
What topic	Iteration in python
What length (min)	30
What age group	Year or Grade 11
Class size	20
What curriculum
Include full script
Check previous homework
Ask some students to presents their homework
Add a physical break
Add group activities
Include homework
Show correct answers
Prepare slide templates
Number of slides	5
Create fill-in cards for students
Create creative backup tasks for unexpected moments

Lesson plan

Lesson Plan: Iteration in Python

Topic

Iteration in Python

Objectives

• Understand the concept of iteration and its importance in programming.
• Learn how to use loops (for and while) in Python.
• Implement basic iteration techniques to solve programming problems.

Materials

• Computers with Python installed
• Projector for demonstration
• Printed handouts of loop structures and syntax
• Example coding problems for iteration

Grade/Age Group

Year/Grade 11

Subject

Computer Science

Number of Students

20

Lesson Length

30 minutes

Lesson Structure

Step Number	Step Title	Length	Details
1	Introduction	5 mins	Briefly explain the concept of iteration and its uses in programming. Introduce the objectives of the lesson.
2	For Loop Explained	10 mins	Provide an explanation of the for loop. Demonstrate using examples in Python. Discuss syntax, structure, and common use cases.
3	While Loop Explained	10 mins	Explain the while loop structure and its usage in Python. Illustrate with practical examples. Emphasize key differences with for loops.
4	Hands-on Activity	5 mins	Students type out sample code using for and while loops on their computers. Walk around to offer assistance as needed.
5	Homework Assignment	1 min	Assign homework related to iteration concepts. Ensure students understand the instructions for submission.
6	Recap and Close	2 mins	Briefly review what was learned in the lesson. Answer any remaining questions. Reinforce the importance of iteration in programming.

Homework

• Assign homework related to the lesson without requiring presentations in class. Check submissions in next class.

Lesson script

Introduction

"Good morning, everyone! Today, we’re going to explore an essential concept in programming: iteration. Can anyone tell me what they think iteration means? [Pause for responses]

Great thoughts! Iteration allows us to execute a block of code repeatedly, which is critical for efficient programming. Throughout this lesson, we’re going to understand how iteration works, learn about loops in Python, and implement some basic techniques.

By the end of our session, you should be able to:

1. Understand the concept of iteration and its importance.
2. Use for and while loops in Python.
3. Solve basic problems using iteration techniques.

Let’s get started!"

For Loop Explained

"Now, let’s dive into the for loop.

A for loop in Python is used to iterate over a sequence (like a list, tuple, or string). It repeats a block of code for each item in the sequence.

The syntax looks like this:

for item in sequence:
    # do something with item

Let me show you a practical example. [Type the following code on the projector:]

fruits = ["apple", "banana", "cherry"]
for fruit in fruits:
    print(fruit)

As you can see, this loop goes through each fruit in our list and prints it out.

Common use cases for for loops include iterating over collections, processing items, and generating sequences.

Does anyone have questions about the for loop? [Pause for questions]

Alright, let’s move on to the next type of loop!"

While Loop Explained

"Next, we have the while loop.

The while loop continues to execute a block of code as long as a specified condition is true.

Here’s the syntax:

while condition:
    # do something

Let me illustrate this with an example. [Type the following code on the projector:]

count = 0
while count < 5:
    print(count)
    count += 1

In this example, as long as count is less than 5, the loop will keep printing the value of count, which is increased by one each time.

Key differences between for and while loops are that for loops are typically used when the number of iterations is known, whereas while loops are used when the iterations depend on a condition.

Do you have any questions about while loops? [Pause for questions]

Fantastic! Let’s move on to our hands-on activity."

Hands-on Activity

"Now it’s time for you to practice!

Please open your Python environment on your computers. I want you to write a for loop that prints out the numbers from 1 to 10. Then, create a while loop that does the same.

I’ll walk around to help anyone who needs assistance. Remember, feel free to ask questions if you get stuck!

[Give students about 5 minutes to complete the activity.]

Time's up! Let’s gather our thoughts."

Homework Assignment

"For homework, I would like you to work on a set of problems involving iteration. I’ll print out a handout with exercises for you to complete. Please ensure you work through them and submit your solutions in our next class.

Any questions about the homework? [Pause for questions]

Make sure to take it seriously; this will reinforce what we learned today."

Recap and Close

"Let’s quickly recap what we learned today:

• We dove into the concept of iteration and its importance in programming.
• We explored for loops and while loops, their syntax, usage, and differences.
• You had a chance to practice coding with both loop types.

Do you have any final questions before we end? [Pause for questions]

Thank you all for your participation! Remember, iteration is a fundamental skill in programming, and mastering it will be incredibly beneficial as you continue to learn. Have a great day!"

Homework

1. Define the term iteration in your own words. Why is it important in programming?

2. Write the syntax of a for loop in Python and explain each part.

3. Create a list of five different animals. Write a for loop that prints each animal from the list.

4. Explain the syntax of a while loop in Python. Provide an example of a while loop that prints numbers from 10 to 1.

5. What is the primary difference between a for loop and a while loop? Provide an example scenario where each loop would be appropriately used.

6. Write a Python script using a for loop to calculate and print the sum of the first 10 positive integers.

7. Using a while loop, create a program that continuously asks the user for a number until they enter a negative number, then prints how many numbers were entered.

8. Reflect on the hands-on activity you completed during class. What challenges did you face and how did you overcome them?

9. Consider a scenario where you have to iterate through user input. How would you use loops to handle this? Give a brief example of code that accepts inputs until a specific condition is met.

10. Research and summarize one additional use case of iteration in programming that was not covered in class.