Seam types and uses enclosed and Edge finishes for JSS 1

Class: JSS 1
Term: First Term
Week: 10
Age: 12 years
Duration: 45 minutes
Subject: Fashion Design and Garment Making
Curriculum Theme: Sewing techniques and their uses
Key competencies/values: Creativity and innovation; Respect; Patience
Skills:

• Produce samples of basic stitches, seams and edge finishes

Previous Lesson: Seam types and uses open
Topic: Basic Sewing Techniques And Their Uses: Seam Types And Uses: Enclosed
Subject Matter: Seam types and uses, Edge finishes

Specific Objectives

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

Cognitive Domain

• Identify suitable edge finishes.
• State the uses of different enclosed seam types.

Affective Domain

• Show patience while practicing sewing techniques.
• Value the importance of neat and durable garment finishes.

Psychomotor Domain

• Apply an enclosed seam to a fabric sample.
• Apply a suitable edge finish to a fabric sample.

Social Domain

• Collaborate in groups to identify basic sewing techniques.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Basic Home Economics for Junior Secondary Schools Book 1
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Sewing machine
• Sewing kit (needles, thread, scissors, pins, measuring tape)
• Fabric samples
• Interactive sewing applications (if available)
• Online tutorials (if projector/internet available)
• Album/Practice book
• Finished garment samples showing different seams and edge finishes

Rationale for the Lesson

This lesson is important as it introduces students to fundamental sewing techniques that ensure garments are strong, neat, and durable. Understanding enclosed seams and edge finishes is crucial for producing high-quality clothing and textile products. These skills form the foundation for more advanced garment construction.

Prerequisite/Previous Knowledge

Students should have basic knowledge of handling sewing tools and simple hand stitches from previous lessons.

Lesson Content/Board Summary

Basic Sewing Techniques And Their Uses: Seam Types And Uses: Enclosed

Seam Types and Uses: Enclosed Seams

An enclosed seam is a type of seam where the raw edges of the fabric are completely hidden within the seam allowance, making the seam neat and durable. They are often used on sheer fabrics, reversible garments, or items that will be laundered frequently.

Common types of enclosed seams include:

1. French Seam: This seam encloses the raw edges by sewing two seams. The first seam is sewn with wrong sides together, trimmed, and then the fabric is turned right sides together and a second seam is sewn, enclosing the raw edges.
2. Bound Seam: In this seam, the raw edges of the seam allowance are encased in a bias binding strip. This creates a very neat and strong finish, often used on unlined jackets or coats.

Uses of enclosed seams:

1. To prevent fraying of fabric edges.
2. To give a neat and professional finish to garments.
3. To add strength to seams, especially in areas of stress.
4. To make garments reversible, as no raw edges are visible.
5. Suitable for sheer or lightweight fabrics where raw edges would be visible.

Edge Finishes

Edge finishes are techniques used to prevent fabric edges from fraying and to give a neat, durable, and attractive appearance to a garment or textile item.

Suitable edge finishes include:

1. Zigzag Stitch: A machine stitch that creates a “Z” pattern over the raw edge, preventing fraying. It is quick and suitable for many fabric types.
2. Overcasting Stitch (Hand or Machine): A stitch that wraps over the raw edge of the fabric to prevent fraying. Machine overcasting is done with a special foot.
3. Binding: Encasing the raw edge of the fabric with a strip of bias fabric. This is a decorative and very durable finish, often used on necklines, armholes, or hems.
4. Machine Hemming: Folding the raw edge of the fabric twice and stitching it down. This is a common finish for garment hems.
5. Pinking Shears: Using special scissors that cut a zigzag edge, which helps to reduce fraying on firmly woven fabrics. This is a quick and simple finish.

Uses of edge finishes:

1. To prevent fabric edges from unraveling or fraying.
2. To enhance the neatness and appearance of a garment.
3. To add strength and durability to garment edges.
4. To provide a decorative element to the garment.

Practical Application: Step-by-step Procedure for a Simple Edge Finish (Zigzag Stitch)

Materials: Fabric sample, sewing machine, thread, scissors.

Procedure:

1. Prepare the sewing machine with the correct thread colour and a zigzag foot.
2. Select the zigzag stitch setting on the machine (adjust stitch length and width as needed).
3. Place the raw edge of the fabric sample under the presser foot, aligning the needle so that it stitches just off the edge of the fabric on one side and into the fabric on the other.
4. Lower the presser foot and begin stitching slowly, guiding the fabric evenly.
5. Continue stitching along the entire raw edge, ensuring the zigzag stitch consistently covers the edge.
6. Trim any loose threads.

Quality Check/Expected Finished Result:

1. The zigzag stitches should be even and consistent in length and width.
2. The stitches should completely cover the raw edge of the fabric, preventing fraying.
3. The edge should lie flat and not be puckered or stretched.
4. The finished edge should be neat and strong.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Observation, Practical Activity, Group Work, Individual Practice

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Recalling/Motivation

Teacher’s Activity: The teacher greets the students and reviews the previous lesson on basic hand stitches. The teacher then introduces the new topic by asking students how they think the edges of clothes are prevented from fraying.

Pupils’ Activity: Pupils respond to questions and share their ideas on preventing fabric fraying.

Learning Point: Activating prior knowledge

Step 2: Explanation of Enclosed Seams

Time: 8 minutes

Teaching Skill: Explanation/Demonstration

Teacher’s Activity: The teacher explains what enclosed seams are, their purpose, and demonstrates with fabric samples or diagrams how a French seam is created, highlighting how raw edges are hidden. The teacher also mentions bound seams.

Pupils’ Activity: Pupils listen attentively, observe the demonstration, and ask questions for clarification.

Learning Point: Understanding enclosed seams

Step 3: Discussion on Edge Finishes

Time: 7 minutes

Teaching Skill: Discussion/Identification

Teacher’s Activity: The teacher leads a discussion on various edge finishes, explaining their purpose and showing examples of zigzag stitch, overcasting, binding, and machine hemming on garment samples. The teacher asks students to identify suitable edge finishes for different fabric types.

Pupils’ Activity: Students participate in the discussion, identify different edge finishes, and contribute ideas on their uses.

Learning Point: Identifying edge finishes

Step 4: Group Activity: Identifying Stitches, Seams, and Edge Finishes

Time: 7 minutes

Teaching Skill: Group Work/Observation

Teacher’s Activity: The teacher divides students into groups and provides each group with garment scraps or pictures showing various stitches, seams (including enclosed), and edge finishes. The teacher instructs them to identify and discuss the types and uses within their groups.

Pupils’ Activity: Students work in groups to identify and discuss the different sewing techniques.

Learning Point: Collaborative identification skills

Step 5: Demonstration of an Edge Finish

Time: 5 minutes

Teaching Skill: Demonstration/Instruction

Teacher’s Activity: The teacher demonstrates step-by-step how to apply a simple edge finish, such as a machine zigzag stitch, on a fabric sample using the sewing machine. The teacher highlights the quality check points.

Pupils’ Activity: Pupils observe the demonstration carefully, noting the steps and techniques.

Learning Point: Practical demonstration of edge finish

Step 6: Guided Practice of Edge Finish

Time: 4 minutes

Teaching Skill: Guided Practice/Supervision

Teacher’s Activity: The teacher guides students to practice applying the demonstrated edge finish (e.g., zigzag stitch) on their fabric samples. The teacher moves around to provide individual assistance and correct errors.

Pupils’ Activity: Students practice the edge finish on their fabric samples under the teacher’s guidance.

Learning Point: Applying edge finish 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:

1. What is an enclosed seam?
2. Mention two types of enclosed seams.
3. Name three common edge finishes.
4. Why is it important to finish the edges of fabric?

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Assessment of understanding

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on seam types, uses, and edge finishes into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson content

Step 9: Conclusion

Time: 1 minute

Teaching Skill: Reinforcement

Teacher’s Activity: The teacher briefly reinforces the importance of neat and durable seams and finishes in garment making and commends students for their participation.

Pupils’ Activity: Pupils listen and acknowledge the importance of the lesson.

Learning Point: Consolidating key concepts

Continuous Assessment/Further Study

Type: Homework/Practice Exercise

Instruction: Students should complete the following tasks at home:

1. On a piece of fabric (e.g., an old cloth), practice sewing a simple French seam.
2. On another fabric sample, apply a zigzag stitch along one raw edge and overcast stitch along another.
3. Bring your finished samples to the next class for review.
4. Research and write down two other types of edge finishes not discussed in class.

Lesson Keywords

• Enclosed Seam – A seam where raw edges are completely hidden within the seam allowance.
• French Seam – A type of enclosed seam made by sewing two seams to hide raw edges.
• Edge Finish – A technique used to prevent fabric edges from fraying and to give a neat appearance.
• Zigzag Stitch – A machine stitch that creates a “Z” pattern over a raw edge to prevent fraying.
• Overcasting – A stitch used to secure raw edges and prevent fraying.
• Binding – Encasing a raw fabric edge with a strip of bias fabric.

Differentiation

For slower learners, the teacher will provide pre-cut fabric samples and guide them individually through the practical steps, focusing on one type of edge finish. Faster learners can be challenged to research and demonstrate other types of enclosed seams or decorative edge finishes, or help assist their peers during practical sessions.

Suggested Lesson Videos

For further understanding and visual demonstration, students can search on YouTube for:

• “French seam tutorial for beginners”
• “Types of edge finishes in sewing”
• “How to sew a zigzag stitch on fabric”

Teacher Guide for Using This Lesson Plan

Before the lesson, ensure all instructional materials, especially fabric samples, sewing machines, and sewing kits, are prepared and in good working condition. Arrange the classroom to facilitate both demonstrations and practical group/individual work. Begin by linking the new topic to students’ prior knowledge of basic stitches. During the explanation of enclosed seams and edge finishes, use visual aids and real garment examples to make the concepts concrete. The group activity should encourage peer learning and discussion. For the practical demonstration and guided practice, emphasize safety rules when operating sewing machines and handling sharp tools. Circulate among students to provide immediate feedback and support. Allow sufficient time for students to copy the Board Summary notes after the practical activities and evaluation. The homework assignment is crucial for reinforcing the practical skills learned in class.