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DIMENSIONING TLE LESSON GRADE 7 DRAFTING
- 1. DIMENSIONING Mary Ann B.Delos Reyes Subject Teacher
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- 5. At the endof the lesson I can… 1. Identify dimensions according to job requirements 2. Draw an object/shape using over-all dimension 3. State the importance of dimensioning
- 6. REVIEW What Line AmI? Identify what kind of line is being depicted in the picture
- 8. VISIBLE LINE CUTTINGPLANE OR VIEWING- PLANE LINES SHORT-BREAK LINE DIMENSION LINE SECTION LINE
- 9. 1. What canyou see in the picture? 2. Do you see measurement? 3. What does these numbers tell us?
- 10. Dimensioning-placing sizes and relatedinformation on a drawing Two types of Dimension Size dimension – gives the detail and over-all sizes of the object Location dimension – merely locates part or parts and features of the object
- 11. Aligned Method All dimensionsare placed aligned with the dimension line and be read from either the bottom or right side of the paper. DIMENSIONING METHOD
- 12. Unidirectional Method In theunidirectional method, all dimensions are read from the bottom of the page as illustrated. This is a new method. DIMENSIONING METHOD
- 13. Over-all Dimension Indicates theover-all width, height and depth of an object KINDS OF DIMENSION
- 14. Detail Dimensions provide sizeor location information concerning any feature or details of an object other than its over-all dimension. KINDS OF DIMENSION
- 15. GROUP ACTIVITY The classwill be divided into five groups. Each group will be tasked to make a simple drawing of their assigned object and will find its length, width, and height. One representative from each group will present their work on class. Group 1- Book Group 2- Cellphone box Group 3- Lunchbox Group 4- Shoe box Group 5- Rubik’s cube
- 16. ACTIVITY QUESTIONS 1. Howdid you find the activity? 2. How many centimeters is the length, width, and height of the object?
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- 18. 1. Why isdimensioning important in building a house? 2. How can you relate dimensioning in dressmaking
- 19. GENERALIZATION 1. What isdimensioning? 2. What are the different kinds of dimensions? 3. What are the two types of dimensioning method?
- 20. I. Multiple Choice 1.Which of these is the process of describing the object by placing sizes and related information on a drawing? A. Dimensioning B. Sectioning C. Sealing D. Tolerancing 2. This type of dimension merely locates parts of the object A. Location dimension B. Detail dimension C. Over-all dimension D. Size dimension 3. What type of dimension gives the detail and over all sizes of the object? A. Location Dimension B. Detail Dimension C. Over-all Dimension D. Size Dimenson
- 21. II. Draw anobject that can be found inside your bag and measure its height, width and length. Rubrics for Scoring CRITERIA 5 points 3 points 1 point Accuracy Measurement supplied in each view were based n given rules There were some measurements that did not comply with the given rules Most of the supplied measurements does not comply with the given rules Neatness Finished output was neatly done, pleasing, and no erasures/smudges Pleasing but erasures and smudges are observable on the finished output Finished output have so many erasures and smudges and quite unpleasant
- 22. 1. What isthe importance of dimensioning? Give at least two. 2. It expresses all sizes and other information necessary to define the object completely. Rubrics for Scoring CRITERIA EXCELLENT (5 points) SATISFACTORY (4 points) Accuracy Measurement supplied in each view were based n given rules There were some measurements that did not comply with the given rules Neatness Finished output was neatly done, pleasing, and no erasures/smudges Pleasing but erasures and smudges are observable on the finished output
- 23. ASSIGNMENT Please bring thefollowing materials for the activity tomorrow Drawing paper or long bond paper Pencil Eraser
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