Topicm9f5b4547af25bcfa_1528449000663_0Topic

The role of the computer in computer science

Levelm9f5b4547af25bcfa_1528449084556_0Level

Second

Core curriculumm9f5b4547af25bcfa_1528449076687_0Core curriculum

Grades IV‑VI

III. Using the computer, digital devices and computer networks. The student:

1) describes the functions of the basic elements of the computer and peripheral devices.

I. Understanding, analysing and solving problems. The student:

1) formulates and writes in the form of algorithms instructions which form:

a) the solutions to problems of everyday life or from various subject areas.

Timingm9f5b4547af25bcfa_1528449068082_0Timing

45 minutes

General objectivem9f5b4547af25bcfa_1528449523725_0General objective

Describing the terms: ‘computer sciencecomputer sciencecomputer science’, ‘data’, ‘information’ and ‘algorithm’algorithm‘algorithm’.

Specific objectivesm9f5b4547af25bcfa_1528449552113_0Specific objectives

1. Defining the terms: ‘computer science’, ‘data’data‘data’, ‘information’ and ‘algorithm’.

2. Distinguishing between data and information.

3. Describing problems with the use of algorithms.

Learning outcomesm9f5b4547af25bcfa_1528450430307_0Learning outcomes

The student:

- defines basic terms in the context of computer science,

- describes everyday problems with the use of algorithms.

Methodsm9f5b4547af25bcfa_1528449534267_0Methods

1. Discussion.

2. Learning through observation.

Forms of workm9f5b4547af25bcfa_1528449514617_0Forms of work

1. Individual work.

2. Class work.

LESSON STAGES

Introductionm9f5b4547af25bcfa_1528450127855_0Introduction

The teacher asks the students how they understand the term ‘computercomputer‘computer science’ and then they discuss in groups the application of computers in everyday life.

[Illustration 1]

Computer sciencecomputer scienceComputer science is a branch of knowledge that deals with the processing of informationinformationinformation with the use of computers.

Procedurem9f5b4547af25bcfa_1528446435040_0Procedure

InformationinformationInformation refers to datadatadata that are collected in order to be processed to produce results (new information). The Polish dictionary defines information as „a factor thanks to which people and devices can function efficiently and purposely”.

[Interactive graphics]

[Table 1]

To make data processing possible, hardware and software must be used for this purpose. A computer – an electronic device used for the processing of information – is hardware and a set of computer programmes that enable the computer performing specified tasks is software. The basis for the development of a programme is to elaborate an algorithm, i.e. a recipe for how to solve a given task. If you compare the computer to a cement mixer, you can say that cement, sand and water are data, but you would not be able to make concrete without a recipe (an algorithm, a programme). Thus all the above factors are important: hardware, software and data.m9f5b4547af25bcfa_1527752256679_0To make data processing possible, hardware and software must be used for this purpose. A computer – an electronic device used for the processing of information – is hardware and a set of computer programmes that enable the computer performing specified tasks is software. The basis for the development of a programme is to elaborate an algorithm, i.e. a recipe for how to solve a given task. If you compare the computer to a cement mixer, you can say that cement, sand and water are data, but you would not be able to make concrete without a recipe (an algorithm, a programme). Thus all the above factors are important: hardware, software and data.

Task 1

Write an algorithmalgorithmalgorithm for making scrambled eggs (specify the equipment you need and describe all operations step by step).

Task 2

Write an algorithm describing one of the methods of adding two‑digit numbers.

The units of informationinformationinformation:

The bitbitbit (b) is the basic unitunitunit of information used in computercomputercomputer science. It can have two values: 1 lub 0. Nowadays the bytebytebyte (B), which corresponds to 8 bits, is more commonly used as the basic unit of digital information.

[Illustration 2]

Lesson summarym9f5b4547af25bcfa_1528450119332_0Lesson summary

Computer science is a branch of knowledge and a field of human activity that deals with the processing of information with the use of computers and an appropriate software.m9f5b4547af25bcfa_1527752263647_0Computer science is a branch of knowledge and a field of human activity that deals with the processing of information with the use of computers and an appropriate software.

Selected words and expressions used in the lesson plan

algorithmalgorithmalgorithm

bitbitbit

bytebytebyte

computercomputercomputer

computer sciencecomputer sciencecomputer science

datadatadata

informationinformationinformation

unitunitunit