☰ Contents · Technology

Working from a technological map

Lessons 13 · 1 lessons · O. A. Qo‘ysinov, O‘. O. Tohirov, D. N. Mamatov, D. F. Aripova. Labour education (Mehnat ta’limi), Grade 9: methodical guide for teachers. Delta-Print, Tashkent, 2017. Note: this is a teacher’s guide, not a student textbook (lesson plans for the “Technology and design”, “Service” and “Basics of agriculture” directions). The course is built from the lesson-plan topics of the “Technology and design” direction; the “Iroqi” skullcap lesson comes from the “Service” direction, and lesson 25 (joining parts) is written from the topic listed in the guide’s calendar plan.
13

Practical work: making an item from a technological map

Teacher’s guide: pp. 43–46
GoalRead a technological map and plan the making sequence of an item from it; follow the safety rules.
New words
work sequence · ish ketma-ketligiequipment and fixture · jihoz va moslamalabour safety · mehnat xavfsizligisurface finish · sirt pardozi
Explanation

A technological map table usually has these columns: serial number, work sequence, sketch of the work, measuring and working tools, equipment and fixtures. In the example of a wooden cradle or belanchak the sequence is: choose material, mark and turn or saw, work the parts on the machine, assemble, then sand, stain and varnish. When the body of a wall-hung lamp is made from sheet metal, the sheet is chosen and measured, cut with special shears, shaped, holes are made and parts are joined; because sheet edges are sharp, the sheet is held in work gloves and cut edges are blunted with a file, while for drilling gloves are removed and goggles worn. Connecting the electrical socket and wire is done only by the teacher or a qualified electrician with the power switched off; doing such work alone at home is strictly forbidden. The labour-safety rules are: check that tools are in good order, check the machine’s condition, fix the workpiece firmly, hold the cutting tool with both hands, never leave a machine unattended and brush off the shavings at the end. Following the technological map secures the quality of the item and saves material.

Worked examples
Row 3 of a map: “Mark the part — 150 × 100 mm — ruler, pencil, square — no equipment needed.” This row tells the worker what to do, with what, and in what size.
Material cost for a bookshelf: 3 boards at 15000 so‘m each and glue for 8000 so‘m; total 3 × 15000 + 8000 = 53000 so‘m. The map lets us calculate material in advance.
Class activity

With the teacher: the class fills in the map on the board together for one item (for example a bird house). At each stage the needed safety rule is stated. Work in the workshop starts only with the teacher’s permission.

Practice
1
What columns does a technological map have?
2
State briefly the work sequence of making a wooden cradle.
3
A shelf needs 4 boards at 12000 so‘m each and nails for 6000 so‘m. What is the total in so‘m?
4
Why must connecting an electrical socket and wire never be done alone at home?