Grade 7 Chapter 9

What is an algorithm?

• A type of programming language

• A type of mathematical equation

• A set of step-by-step instructions to solve a problem or perform a task

• A type of computer virus

Why is it important to understand algorithms in computer science?

• To waste time and resources on unnecessary tasks

• To solve complex problems efficiently and improve performance

• To confuse people and make computer science harder to understand

• To make problems more complicated and slow down performance

What is the parallelogram mean in that flowchart?

• Processing

• Start of the program

• Decision Symbol

• Input/output

What is the rectangle mean in that flowchart?

• Processing

• Start of the program

• Decision Symbol

• Input/output

What is the diamond mean in that flowchart?

• Processing

• Start of the program

• Decision Symbol

• Input/output

How can algorithms be represented visually?

• Musical notes, chords, or scales

• Bar graphs, scatter plots, or line charts

• Flowcharts, pseudocode, or structured English

• Morse code, braille, or sign language

Create a flowchart for a simple process such as making a cup of tea.

• Flowchart for baking a cake

• Flowchart for washing a car

• Flowchart for making a cup of coffee

• Flowchart for making a cup of tea

Identify the input and output in the algorithm for solving a math problem.

• Input: Data or values given in the problem, Output: Result or solution obtained after applying the algorithm

• Input: Initial conditions, Output: Final conditions

• Input: Variables used in the algorithm, Output: Intermediate steps

• Input: Steps to solve the problem, Output: Final answer

What are some examples of input in a computer program?

• Data entered by a user, sensor readings, file contents

• Food recipes, travel itinerary, shopping list

• Weather forecast, historical data, music playlist

• Physical objects, emotions, dreams

Explain the concept of output in the context of computer programming.

• The hardware components of a computer

• The input provided to a program

• The result or information produced by a program

• The process of writing code