Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: 3rd Term
Week: 5
Age: 15 years
Duration: 45 minutes
Subject: Photography
Curriculum Theme: Trade
Previous Lesson: Practical Experience Of Film Development Process.
Topic: THE NEGATIVE
Subject Matter: Meaning of negative, Drying methods, Open air drying, Dryer drying

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain:

Define a photographic negative.
State the different methods of drying negatives.
Explain the process of open air drying.
Describe how a film dryer works.

Affective Domain:

Appreciate the importance of proper negative drying.
Show interest in learning various photographic processes.

Psychomotor Domain:

Identify correctly dried negative strips.
Demonstrate the steps for preparing negatives for drying.

Collaborate with peers in discussing drying techniques.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Cultural and Creative Arts (CCA).
State Unified Scheme of Work for Senior Secondary Schools.
Any standard Senior Secondary School Photography textbook.
https://www.dummies.com/photography/film-photography/how-to-dry-film-after-processing/
https://www.youtube.com/watch?v=your_film_drying_video

Instructional Materials

The teacher will teach this lesson with the aid of:

Processed negative strips (dried and possibly wet).
A drying rack or clothesline with clips.
A film dryer (if available, or pictures/diagrams of one).
Pictures showing different drying methods.

Rationale for the Lesson

Understanding the negative is important because it is the foundation for making photographic prints. Learning proper drying methods helps pupils produce high-quality negatives, which is essential for good final images and prevents damage to the film.

Prerequisite/Previous Knowledge

Pupils are assumed to have prior knowledge of basic photography concepts and the general process of film development.

Lesson Content/Board Summary

THE NEGATIVE

Meaning of Negative

A negative is a photographic image, usually on a transparent base like film or glass, in which the tones or colours are reversed from those of the original subject. Dark areas in the subject appear light in the negative, and light areas appear dark. It is used to create positive prints.

Methods of Drying Negatives

After development and washing, negatives must be dried carefully to prevent damage and ensure good quality prints. The following are common methods of drying negatives:

Open Air Drying
Dryer Drying (using a film dryer)

Open Air Drying

Open air drying involves hanging the negatives in a clean, dust-free environment to dry naturally. This method is simple and does not require special equipment beyond a drying line and clips.

The following are steps for open air drying:

After the final wash, remove excess water from the film by gently wiping with a soft, clean squeegee or by hand with a wet, lint-free sponge.
Hang the film vertically from one end using a film clip or clothespin.
Attach another weighted clip to the bottom end to keep the film straight and prevent curling.
Ensure the drying area is free of dust, drafts, and high humidity.
Allow the film to dry completely, which can take several hours depending on environmental conditions.

Dryer Drying

Dryer drying uses a specialized film dryer, which is an enclosed cabinet designed to dry film quickly and efficiently. These dryers often have a fan and sometimes a heating element to speed up the process and filter the air to prevent dust.

The following are features and benefits of dryer drying:

Provides a controlled, dust-free environment for drying.
Speeds up the drying process using circulated air and sometimes gentle heat.
Reduces the risk of water spots or dust settling on the film.
Often includes filters to ensure clean air is circulated.
Requires specific equipment (the film dryer itself).

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils and reviews the previous lesson on film development. The teacher then introduces the new topic, “The Negative,” by showing a developed film strip and asking pupils what they observe.
Pupils’ Activity: Pupils respond to greetings, recall the previous lesson, and observe the film strip.
Learning Point: Pupils connect previous knowledge to the new topic and are introduced to the negative.

Step 2: Meaning of Negative

Time: 10 minutes
Teaching Skill: Explanation/Definition
Teacher’s Activity: The teacher defines a photographic negative, explaining its characteristics (reversed tones) and its purpose in photography. The teacher uses visual aids (actual negatives or images) to illustrate the concept.
Pupils’ Activity: Pupils listen, observe the visuals, and ask questions for clarification. They note down the definition.
Learning Point: Pupils understand what a photographic negative is and its fundamental role.

Step 3: Methods of Drying Negatives

Time: 5 minutes
Teaching Skill: Listing/Classification
Teacher’s Activity: The teacher explains that after development and washing, negatives must be carefully dried. The teacher lists and briefly introduces the two main methods of drying negatives: open air drying and dryer drying.
Pupils’ Activity: Pupils listen and note the different drying methods.
Learning Point: Pupils identify the various ways negatives can be dried.

Step 4: Open Air Drying

Time: 7 minutes
Teaching Skill: Elaboration/Demonstration
Teacher’s Activity: The teacher explains the process of open air drying, highlighting the importance of a clean, dust-free environment. The teacher demonstrates (or describes using diagrams) how to hang the film, remove excess water, and use weights.
Pupils’ Activity: Pupils pay attention to the explanation and demonstration, asking questions about the practical aspects.
Learning Point: Pupils understand the steps and considerations for open air drying.

Step 5: Dryer Drying

Time: 7 minutes
Teaching Skill: Explanation/Illustration
Teacher’s Activity: The teacher describes the use of a film dryer, explaining its advantages such as speed, dust control, and consistent drying. If a dryer is available, the teacher shows it; otherwise, pictures or diagrams are used.
Pupils’ Activity: Pupils listen to the explanation, observe the visuals, and discuss the benefits of using a film dryer.
Learning Point: Pupils learn about an alternative, more controlled method of drying negatives.

Step 6: Practical Tips and Importance of Proper Drying

Time: 4 minutes
Teaching Skill: Emphasis/Discussion
Teacher’s Activity: The teacher discusses common problems associated with improper drying (e.g., dust, water spots, curling) and emphasizes the importance of careful handling and a clean environment for both methods.
Pupils’ Activity: Pupils contribute to the discussion, sharing potential challenges or asking how to avoid them.
Learning Point: Pupils understand the consequences of poor drying and the value of meticulous technique.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

What is a photographic negative?
Mention two common methods for drying negatives.
Describe the basic steps involved in open air drying.
State two advantages of using a film dryer compared to open air drying.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 2 minutes
Teaching Skill: Summarizing/Assignment
Teacher’s Activity: The teacher summarizes the key points of the lesson, reiterating the definition of a negative and the importance of proper drying methods. The teacher assigns homework: “Research and write down three common issues that can arise from improperly dried negatives and how to prevent them.”
Pupils’ Activity: Pupils listen to the summary and copy down the homework assignment.
Learning Point: Pupils consolidate their learning and are given an opportunity for further research.

Lesson Keywords

Negative – A photographic image where tones are reversed from the original subject.
Drying – The process of removing moisture from developed film.
Open Air Drying – Drying negatives by hanging them in a clean, dust-free environment.
Film Dryer – An enclosed cabinet designed to quickly and efficiently dry film using circulated air.
Water Spots – Marks left on film due to water drying unevenly or leaving mineral deposits.

Differentiation

For pupils who grasp concepts quickly, they can be tasked with identifying and explaining advanced drying techniques or discussing the impact of humidity on drying times. For pupils who need more support, the teacher can provide visual step-by-step guides for each drying method and offer one-on-one assistance during practical demonstrations.

Note for teachers using this lesson plan

Teachers should ensure that the classroom or demonstration area is as clean and dust-free as possible when demonstrating drying techniques to emphasize best practices. If a film dryer is not available, detailed diagrams or videos should be used to illustrate its function. Encourage pupils to handle film carefully to prevent fingerprints and scratches.