LESSON PLAN IN BASIC DRAFTING TECHNOLOGY - I
Subject : Technology and Livelihood Education (Draft Tech). Grade and Sec:
Date: Time:
I.
OBJECTIVES: At the end of the lesson the students are expected to: 1. define Drafting 2. classify common drafting tools and materials 3. familiarize themselves on these tools and materials.
II .
SUBJECT MATTER: Concept : Drafting Sub-concept : common drafting tools and materials Materials : chalk, board and visual aids Reference : Exploratory Drafting by: Julian Esguerra and Elisa Molino pp 2, 23-35
Method III.
: Discussion and Demonstration
PROCEDURE: 1. Preparation a.1. daily class routine, prayer a.2. checking of attendance and classroom cleanliness b. review of the past lesson c. Motivation “Class, what is the difference between drawing and drafting?” drafting?” .................... Drawing is a freestyle way of sketching self thought ideas. While drafting on the other hand is drawing precisely and accurately with the use of drawing instruments. . (The teacher will draw something on the board… board… The first one is a drawing of a “flower”, while the second one is a “house” drawn in a perspective view.) view.)
“Can you tell me which among these two represents an image done through drawing/drafting?” 2. Presentation * Teaching Points Drafting- is the study of the communication of ideas through lines, symbols, codes, drawings, sketches, charts, graphs, and maps. Drawing – is is an art of sketching an idea which commonly done through freehand.
Common Drafting Tools and Materials A. Tools Pencil - the drawing pencil is one of the draftsman’s most important tools categorized by different grades of hardness and softness. T-Square – it is used for drawing horizontal lines and serves as a guide for triangles when drawing other kinds of lines. Triangles – these are used for drawing vertical and oblique lines. Usually comes in 45° and the 30° x 60°. Ruler -is used to draw a straight line.
Triangular Scale – also known as “Architect’s Scale”. Its purpose is to reproduce the dimensions of an object full size on a drawing or enlarge them to some regular proportion. Lettering Pen or Speedball Pen - these are used for drawing letters of different styles. Drawing Compass – generally used for drawing arcs and circles. Dividers – are used for dividing lines into any number of equal parts, and transferring measurements and spacing points or lines. Protractor – a semi circular scale divided into 180 equal parts each of which is called a degree, (°), and is used for measuring and laying out arcs of circles as well as angles that cannot be measured with the 45° or the 30° x 60° triangles. French curve – this is used for drawing irregular curves. Erasers – used to remove smears, pencil or ink lines and other unwanted marks Erasing shield – made up of metal or celluloid with irregular holes. It is useful to protect the rest of the drawing when making an erasure. B. Materials Drawing Paper Masking or Scotch Tape Pencil Sharpener
3. Application : Some students will be asked in front to choose one among the drafting tools and materials on the table and be able to tell to the class the name and function of the specific drafting tool/material chosen. 4. Generalization : Summary of the topics as explained. IV. EVALUATION: *A short quiz (10 pts.) Instructions: Identify the following word or group of words being described. 1. It is the study of the communication of ideas through lines, symbols, codes, drawi ngs, sketches, charts, graphs, and maps.. 2. It is one of the draftsman’s most important tools categorized by different grades of hardness and softness . 3. Refers to the art of sketching an idea which commonly done through freehand. 4. These tool is generally used for drawing arcs and circles.. 5. A semi circular scale divided into 180 equal parts each and is used for measuring out arcs of circles. 6. These are used for drawing letters of different styles. 7. This is commonly used to remove smears, pencil or ink lines 8. Also known as “Architect’s Scale”. 9. Generally used for drawing arcs and circles 10. It is used for dividing lines into any number of equal parts. * Some exercises with the use of drafting tools and instruments.
V.
ASSIGNMENT: 1. What are the different safety reminders when using drafting tools and instruments? 2. Prepare and bring required drafting tools and materials for inspection.
References: Drafting Vol.1 By: German Manaois pp. 10-13 Exploratory Drafting By: Julian Esguerra and Elisa Molino pp. 36-38
Prepared by: James D. Bondoc Teacher
