JSS 1 First Term

LEARNING OBJECTIVES: BY THE END OF THE LESSON PUPILS SHOULD BE ABLE TO:

Cognitive	i. Define storage and state why a computer needs storage. ii. Differentiate between primary and secondary storage. iii. Name the common secondary storage devices. iv. State the units used to measure storage.
Affective	i. Appreciate the value of Storage Devices in school, at home and in the community. ii. Show willingness to use digital tools carefully, safely and responsibly.
Psychomotor	i. Check and write down the total and free space of the laboratory computer hard disk. ii. Insert a flash drive, create a folder on it and copy three files into the folder. iii. Measure the size of three files of different types and record which type uses the most space. iv. Empty the Recycle Bin and record how much free space is regained.

Rationale: Storage keeps data so that it can be used again later. Understanding what Storage Does, primary Storage, secondary Storage, comparing Storage Devices helps learners use digital technology confidently, safely and responsibly.

Pre-requisite Knowledge: In Week 6, learners studied Basic Typing Skills, including parts of the Keyboard, finger Position, typing Practice and Accuracy. The knowledge from that week is used again in this lesson.

Learning Material/Teaching Aid: Whiteboard, markers, computer or laptop where available, printed notes and charts on Storage Devices, practical task sheets, learners' notebooks and pens.

Reference Materials: Digital Technology for Junior Secondary Schools (JSS 1); NERDC Digital Technology Curriculum; Digital Technology JSS 1 First Term Notes (Week 7); First Term examination and Continuous Assessment question papers.

LESSON DEVELOPMENT

Stage/Step (Time)	Teacher's Activities	Student's Activities	Learning Points
Introduction 5 MINUTES	Welcomes learners, revises Week 6 (Basic Typing Skills) with two quick oral questions, and asks what they already know about Storage Devices. Elicits responses and writes the topic on the board.	Recall the previous lesson and share what they already know about Storage Devices.	Connecting prior knowledge to Storage Devices.
Step 1 6 MINUTES	Covers What Storage Does: Storage keeps data so that it can be used again later. A computer needs storage for three reasons. Covers Primary Storage: Primary storage is the working memory of the computer. It is very fast and is used directly by the processor.	Listen, take notes and answer oral questions on "What Storage Does" and related points.	Understanding: What Storage Does; Primary Storage.
Step 2 6 MINUTES	Covers Secondary Storage: Secondary storage keeps data permanently. It is slower than primary storage but much larger. Covers Comparing Storage Devices: Storage devices are compared by capacity, speed, portability and cost. A hard disk has large capacity but is fixed inside the computer.	Copy the key points, give examples from school and everyday life, and ask questions on "Secondary Storage" and related points.	Understanding: Secondary Storage; Comparing Storage Devices.
Step 3 6 MINUTES	Covers How Data Is Stored and Measured: A computer stores everything in binary, using only the digits 0 and 1. Each 0 or 1 is called a bit, and eight bits make a byte, which can hold one character such as the letter A.	Discuss in pairs, then report one point on "How Data Is Stored and Measured" to the class.	Understanding: How Data Is Stored and Measured.
Step 4 6 MINUTES	Covers Types of Secondary Storage: Different storage devices suit different jobs. A hard disk drive uses spinning magnetic discs and gives a large capacity at low cost. A solid state drive uses electronic chips, so it is faster, quieter and more durable.	Respond to questions, complete the examples on the board and note down "Types of Secondary Storage".	Understanding: Types of Secondary Storage.
Practical Work 6 MINUTES	Guides learners through the practical work: (i) Check and write down the total and free space of the laboratory computer hard disk. (ii) Insert a flash drive, create a folder on it and copy three files into the folder. (iii) Measure the size of three files of different types and record which type uses the most space. Moves round the class to check progress and correct unsafe or careless use.	Carry out the practical tasks individually or in pairs and record what they did in their notebooks.	Applying the lesson through hands-on practice.
Evaluation 3 MINUTES	Asks learners to: i. Define storage and state why a computer needs storage. ii. Differentiate between primary and secondary storage. iii. Name the common secondary storage devices. iv. State the units used to measure storage.	Respond verbally and in writing to the evaluation questions.	Assessment and consolidation of the lesson content.
Conclusion 2 MINUTES	Recaps the main points: what Storage Does, primary Storage, secondary Storage, comparing Storage Devices, how Data Is Stored and Measured. Links them to the assignment and previews Week 8: Simple Uses of the Internet.	Listen, ask questions and copy the assignment.	Reinforcement of key concepts and a preview of the next lesson.

Assignment: i. A pupil needs space to save a large video but the computer reports that there is not enough room. Give two ways to create space. ii. Explain why a computer will not start properly if the RAM is faulty.