Course Content
Topic 1: Introduction to Python
0/2
Lesson 1.1: What is Python and Why Learn It?
Lesson 1.2: Writing Your First Python Program
Module 2: Variables and Data Types
🎯 Module Objective: To help learners understand how to store, manage, and work with different types of data in Python using variables, and how to recognize and convert between data types.
0/3
Lesson 2.1: Variables and Assignment
Lesson 2.2: Data Types in Python
Lesson 2.3: Type Conversion and Input
Topic 3: Control Flow
🎯 Module Objective This module introduces learners to Python operators used in calculations, comparisons, and logic. Learners will understand how expressions are evaluated and how to build logical conditions using operators.
0/2
Lesson 3.1: Arithmetic Operators
Lesson 3.2: Comparison and Logical Operators
Module 4: Control Flow
🎯 Module Objective: This module introduces the concept of decision-making and repetition in Python programs using: if-else statements for loops while loops break, continue and basic loop control
0/3
Lesson 4.1: If-Else Statements
🔁 Lesson 4.2: Loops (For and While)
🔂 Lesson 4.3: Break and Continue in Loops
Module 5: Functions
🎯 Module Objective: This module helps learners understand how to organize code using functions. They’ll learn how to: Create and call functions Use parameters and return values Understand the concept of scope Get introduced to recursion
0/2
🔧 Lesson 5.1: Defining and Calling Functions
🔁 Lesson 5.2: Scope and Recursion
Module 6: Lists and Tuples
🎯 Module Objective: This module introduces learners to two important data collection types in Python — lists and tuples. Learners will: Create, access, and modify lists Use list methods like append(), remove(), sort() Understand the difference between mutable (lists) and immutable (tuples)
0/2
🧺 Lesson 6.1: Introduction to Lists
🔒 Lesson 6.2: Tuples and Immutability
Module 7: Dictionaries and Sets
🎯 Module Objective: This module introduces two powerful Python data types: Dictionaries: for storing key–value pairs Sets: for storing unordered, unique items Learners will: Understand the syntax and usage of dictionaries and sets Perform operations like adding, removing, updating Use dictionary methods (get(), update(), keys(), values())
0/2
🗂️ Lesson 7.1: Python Dictionaries
🔣 Lesson 7.2: Python Sets
Module 8: File Handling
🎯 Module Objective: This module introduces learners to the basics of file handling — reading from and writing to text files using Python. Learners will: Open and read from a file Write to and append content in a file Use the with statement for safe file handling
0/1
📂 Lesson 8.1: Reading and Writing Files
🛠️ Module 9: Error Handling in Python
🎯 Module Objective: This module introduces learners to error handling in Python — a critical skill for writing stable and reliable programs. Learners will: Understand what exceptions are Learn how to use try, except, else, and finally Handle common Python errors (e.g., ZeroDivisionError, ValueError, FileNotFoundError) Write code that doesn’t crash when unexpected issues occur
0/1
🛑 Lesson 9.1: Try-Except Block
Module 10: Final Project
🎯 Module Objective: To help learners consolidate and apply all the skills they’ve gained throughout the course by building a small, real-world project. Upon successful completion, learners can earn a course completion certificate via Tutor LMS.
0/4
🗂️ Lesson 10.1: Option 1: Student Report Card Generator
📅 Lesson 10.2: Option 2: To-Do List Manager (with File Storage)
🧮 Lesson 10.3: Option 3: Simple Calculator App
Lesson 10.4: Course Recap
Python for Absolute Beginners: From Zero to Hero
About Lesson

🎯 Learning Objectives

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

  • Understand and use Python’s arithmetic operators

  • Write mathematical expressions in Python

  • Apply operator precedence rules

  • Perform integer, float, and modular arithmetic

📚 Lesson Content

🔹 What Are Arithmetic Operators?

Arithmetic operators are used to perform basic mathematical operations in Python.

Operator Description Example (a = 10, b = 3) Result
+ Addition a + b 13
- Subtraction a - b 7
* Multiplication a * b 30
/ Division (float) a / b 3.33
// Floor Division a // b 3
% Modulus (Remainder) a % b 1
** Exponentiation a ** b 1000

🔸 Examples

python
a = 10
b = 3

print(a + b) # 13
print(a - b) # 7
print(a * b) # 30
print(a / b) # 3.333...
print(a // b) # 3
print(a % b) # 1
print(a ** b) # 1000

⚠️ Division Notes

  • / always returns a float

  • // discards the decimal part (floor value)

python
print(7 / 2) # 3.5
print(7 // 2) # 3

📐 Operator Precedence (BODMAS/PEMDAS)

Python follows this order:

  1. () Parentheses

  2. ** Exponentiation

  3. * / // % Multiplication, Division, Floor, Modulus

  4. + - Addition, Subtraction

🔄 Expression Example:

python
result = (2 + 3) * 4 ** 2 // 5
# = (5) * 16 // 5
# = 80 // 5
# = 16
print(result)

✅ Always use parentheses () to control the order clearly.

🧠 Mini Exercise

Write a Python program to:

  • Add two numbers

  • Subtract one from the other

  • Multiply them

  • Divide them and print both / and // result

📝 Assignment

Ask the user for two numbers using input() and display:

  • Their sum

  • Their difference

  • Their product

  • Their quotient

  • Their remainder

💡 Use int() or float() to convert user inputs.

Previous
Next
Scroll to Top