Class: Senior Secondary School 2 (SS2 / SSS2)
Term: 1st Term
Week: 7
Age: 16 years
Duration: 45 minutes
Subject: Building Construction
Curriculum Theme: Building Drawing and Detailing
Previous Lesson: Special Detail: Detailing of drawings, doors and windows schedules.
Topic: SPECIAL DETAIL
Subject Matter: Doors and window schedules (door and window schedule entries, symbols and specifications)

Specific Objectives

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

Cognitive Domain:

Define door and window schedules.
Identify the various entries, symbols, and specifications used in door and window schedules.
Explain the importance of door and window schedules in building construction.

Affective Domain:

Appreciate the need for accuracy and detail in construction drawings.
Show interest in learning about building specifications and schedules.

Psychomotor Domain:

Draw a simple door or window schedule.
Correctly apply common symbols for doors and windows in a schedule.

Participate actively in classroom discussions regarding building details.

Reference Materials

The following resources were used in planning this lesson:

Senior Secondary Schools Education Curriculum
State Unified Scheme of Work
Building Construction for Senior Secondary Schools, Book 2
https://www.theconstructor.org/building/door-window-schedule-building-construction/
https://www.cadpro.com/blog/door-and-window-schedules/

Instructional Materials

The teacher will teach this lesson with the aid of:

Drawing paper
Drawing board
Eraser
Drawing instruments (T-square, set squares, pencils)
Sample drawings of door and window schedules
Chalkboard/Whiteboard

Rationale for the Lesson

Understanding door and window schedules is important for pupils because it enables them to interpret and create detailed construction drawings. This skill is essential for communicating precise specifications for building components, ensuring correct installation and material use in real-world construction projects.

Prerequisite/Previous Knowledge

Pupils have basic knowledge of building components, building drawing principles, and the use of drawing instruments.

Lesson Content/Board Summary

SPECIAL DETAIL

What are Door and Window Schedules?

Door and window schedules are tabular lists on a building drawing that provide detailed information about each door and window in a building. They serve as a quick reference for contractors, suppliers, and builders regarding the type, size, material, and other specifications of each opening.

Purpose of Door and Window Schedules

The following are the purposes of door and window schedules:

To provide clear and concise information about all doors and windows.
To ensure consistency in the selection and installation of building components.
To assist in cost estimation and material procurement.
To reduce errors and misinterpretations during construction.
To serve as a checklist for quality control.

Common Entries in a Door/Window Schedule

A typical door or window schedule includes the following entries:

Mark/Number: A unique identifier for each door or window (e.g., D1, D2, W1, W2).
Type: Description of the door/window type (e.g., flush door, panel door, casement window, sliding window).
Material: The material used for the frame and leaf/sash (e.g., timber, steel, aluminium, uPVC).
Size (Width x Height): The dimensions of the door/window opening in millimetres (mm).
Head Height: The height of the top of the door/window from the finished floor level.
Sill Height (for windows): The height of the bottom of the window from the finished floor level.
Finish: The type of finish applied (e.g., painted, varnished, polished).
Remarks: Any additional notes or special requirements (e.g., fire-rated, security features, obscure glass).
Quantity: The number of identical doors or windows.

Symbols for Doors and Windows

In architectural drawings, specific symbols are used to represent different types of doors and windows in plan views:

Single Swing Door: Represented by a line indicating the door leaf and an arc showing the direction of swing.
Double Swing Door: Two door leaves with arcs indicating their swing.
Sliding Door: Two parallel lines, often with an arrow indicating the sliding direction.
Folding Door: A series of hinged panels.
Casement Window: A window that opens outwards, shown with an arc indicating the swing.
Sliding Window: Two parallel lines indicating the sliding sashes.
Fixed Window: A single line representing the frame with no opening mechanism shown.

Specifications in Schedules

Specifications provide detailed technical descriptions for the materials, quality, and workmanship required for each component. In schedules, specifications might include:

Material Grade: e.g., “Hardwood timber, grade A,” “Aluminium alloy 6063-T5.”
Glass Type: e.g., “6mm clear float glass,” “8mm obscure laminated glass.”
Hardware: e.g., “Brass hinges,” “Stainless steel handle and lock set.”
Paint/Finish Type: e.g., “Two coats of gloss paint,” “Polyurethane varnish.”

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 basic building components. The teacher then asks pupils how builders know what type and size of doors and windows to install in a building.
Pupils’ Activity: Pupils respond to the questions and share their ideas.
Learning Point: Pupils recall previous knowledge and are introduced to the lesson topic.

Step 2: Explanation of Detailing in Drawings

Time: 7 minutes
Teaching Skill: Explanation/Illustration
Teacher’s Activity: The teacher explains that detailing in building drawings involves providing specific, precise information about individual building elements. The teacher then introduces door and window schedules as a form of special detailing.
Pupils’ Activity: Pupils listen attentively and ask questions for clarification.
Learning Point: Pupils understand the concept of detailing in construction drawings.

Step 3: Introduction to Door and Window Schedules

Time: 8 minutes
Teaching Skill: Lecture/Discussion
Teacher’s Activity: The teacher defines door and window schedules and explains their overall purpose in building construction. The teacher uses a sample schedule to illustrate.
Pupils’ Activity: Pupils define door and window schedules and identify their importance.
Learning Point: Pupils grasp the definition and basic purpose of schedules.

Step 4: Components and Entries in Schedules

Time: 8 minutes
Teaching Skill: Explanation/Listing
Teacher’s Activity: The teacher lists and explains common entries found in door and window schedules, such as Mark, Type, Material, Size, Finish, and Remarks. The teacher writes these on the board.
Pupils’ Activity: Pupils take notes and identify the various entries.
Learning Point: Pupils learn the specific information contained within schedules.

Step 5: Symbols and Specifications

Time: 7 minutes
Teaching Skill: Demonstration/Illustration
Teacher’s Activity: The teacher demonstrates common symbols used for different types of doors and windows in plan views. The teacher also explains how specifications for materials and finishes are communicated through these schedules.
Pupils’ Activity: Pupils observe the symbols and understand their meaning, noting down key specifications.
Learning Point: Pupils identify and interpret common door and window symbols and specifications.

Step 6: Practical Drawing Guidance

Time: 5 minutes
Teaching Skill: Demonstration/Guidance
Teacher’s Activity: The teacher guides the pupils on how to set up a basic table for a door/window schedule and begins to fill in a few entries as an example, encouraging them to think about dimensions and materials.
Pupils’ Activity: Pupils follow the teacher’s guidance, preparing to draw their own schedules.
Learning Point: Pupils begin to apply the theoretical knowledge to practical drawing.

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 door schedule?
State three purposes of using door and window schedules in building construction.
Mention four common entries found in a window schedule.
Describe how a single swing door is typically represented in a plan view drawing.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 5 minutes
Teaching Skill: Summarization/Assignment
Teacher’s Activity: The teacher summarizes the key points of the lesson, re-emphasizing the importance of accurate schedules. The teacher then assigns pupils to draw a schedule for a small building with at least two different door types and two different window types, including all relevant entries and symbols.
Pupils’ Activity: Pupils listen to the summary and copy down the assignment.
Learning Point: Pupils consolidate their learning and prepare for further practice.

Lesson Keywords

Detailing – The process of adding specific information to a drawing.
Schedule – A tabular list providing detailed information about building components.
Door Schedule – A list detailing all doors in a building.
Window Schedule – A list detailing all windows in a building.
Symbols – Graphic representations used in drawings to denote objects or features.
Specifications – Detailed descriptions of materials, quality, and workmanship.
Entries – Individual pieces of information listed in a schedule.

Differentiation

For pupils who grasp concepts quickly, the teacher can challenge them to include more complex specifications like U-values or fire ratings. For those who need more support, the teacher can provide pre-drawn schedule templates and focus on correctly filling in the basic entries and symbols.

Note for teachers using this lesson plan

Ensure you have clear, enlarged samples of door and window schedules to show the pupils. A physical example of a simple door/window frame or hardware can also enhance understanding. Emphasize the practical application of schedules in preventing errors on construction sites. Encourage pupils to use their drawing instruments neatly and accurately.