ICT Notes for Class 7 Algorithms And-Flowcharts

Algorithms and Flowcharts

Welcome to the chapter on Algorithms and Flowcharts for Class 7. In this chapter, you will learn what algorithms and flowcharts are, how to write simple algorithms, and how to draw flowcharts to show steps in a process. By the end of this chapter, you will be able to solve problems using algorithms and flowcharts!

Introduction

Computers follow instructions to solve problems. These instructions are written as algorithms and shown as flowcharts. Learning these helps you plan and solve tasks step by step.

What is an Algorithm?

An algorithm is a set of clear, step-by-step instructions to solve a problem or complete a task.

Example: Steps to make a sandwich.
Algorithms must be simple and easy to follow.

Writing an Algorithm

Write each step in order. Use short and clear sentences.

Step 1: Take two slices of bread.
Step 2: Spread butter on the bread.
Step 3: Put cheese between the slices.
Step 4: Close the sandwich and serve.

What is a Flowchart?

A flowchart is a diagram that shows the steps of an algorithm using shapes and arrows. It helps us understand the process visually.

Oval shape: Start or End
Rectangle: Process or action
Diamond: Decision (Yes/No)
Arrows: Show the flow of steps

Drawing a Flowchart

Start with "Start" in an oval. Draw each step in rectangles. Use diamonds for decisions. Connect them with arrows.

Example: Flowchart for checking if a number is even or odd.

Fun Activity: Make Your Own Flowchart!

Choose a simple task (like brushing your teeth). Write the steps as an algorithm. Draw a flowchart to show the steps.

Summary

Algorithms are step-by-step instructions.
Flowcharts show steps using shapes and arrows.
Both help us solve problems easily.

Practice Questions

Write an algorithm for making tea.
Draw a flowchart for switching on a computer.
What shape is used for decisions in a flowchart?
Why do we use flowcharts?
List two benefits of using algorithms.

Challenge Yourself

Create an algorithm and flowchart for your morning routine.
Explain a flowchart to your friend and ask them to follow the steps.

Did You Know?

Flowcharts are used in computer programming, business, and science!
Algorithms are everywhere—even in cooking recipes and games!

Glossary

Algorithm: Step-by-step instructions to solve a problem.
Flowchart: A diagram showing steps using shapes and arrows.
Process: An action or step in a flowchart.
Decision: A point where you choose between options.

Answers to Practice Questions

(Any correct steps for making tea)
(A flowchart with Start, Switch on, End)
Diamond
To show steps visually and make processes easy to understand.
They make tasks clear and help avoid mistakes.

Practice writing algorithms and drawing flowcharts to become a smart problem solver!

ICT Class 7 - Algorithms And-Flowcharts Notes