By the end of this lesson, learners will be able to:
Identify and explain the essential safety measures required when performing soldering and desoldering operations.
Competently remove common electronic components like transistors, capacitors, and diodes from a circuit board without causing damage to the component or the board.
Categorize and describe various types of solder used in electronic applications.
Lesson summary
This topic introduces students to the fundamental practical skills of soldering and desoldering, which are critical for the assembly, repair, and modification of electronic circuits. In Nigeria, the ability to effectively solder and desolder components is indispensable for technicians working with common electronic devices such such as radios, televisions, mobile phone chargers, inverter circuits, and household appliances. Mastery of these skills directly contributes to the maintenance of existing electronics and can foster entrepreneurial opportunities in the electronics repair sector.
Teacher activity
States the precautions to observe whilesoldering and Desoldering
Demonstratesthe correcttechnique for desolderingsimpleelectronicdevices/components.
Lists and displays typesof solder and flux.
Evaluation guide
This section outlines how to assess student learning based on the provided evaluation guide.
Formative Assessment (Ongoing during the lesson):
Observation: The teacher observes students during the practical session, noting their adherence to safety procedures, their technique in handling tools, and their ability to solder and desolder components without damage. This is the most crucial assessment for a practical skill.
Questioning: Ask probing questions during explanations and demonstrations (e.g., "Why is ventilation important?", "What does 'wetting' mean?").
Peer Feedback: Encourage students to observe and provide constructive feedback to their peers during practical exercises (under teacher guidance).
Reference guide
Soldering iron,types of soldersand flux, longnose pliers, oldelectronics panelconsisting of transistors,diodes, capacitorsand powersupply.Desolderingtools/sucker.
