☰ Contents · Technology

A creative project: a bracelet

Lessons 39–40 · 2 lessons · O‘. O. Tohirov, I. Karimov, M. M. Maksimova. Technology (Texnologiya), textbook for Grade 8 of general secondary schools. Ilm Ziyo, Tashkent, 2019
40

Independent creative project: designing the making of a bracelet

Textbook: pp. 139–143
GoalKnow, through the example of a bracelet project, its stages, economic and environmental justification and safe work with wire and beads.
New words
bracelet · bilaguzukbead · munchoqeconomic justification · iqtisodiy asoslashenvironmental justification · ekologik asoslash
Explanation

In the bracelet project, the preparatory stage studies demand for the jewellery, similar items and design. In design, flexible thin wire, beads of different sizes, a metal ruler and scissors or wire cutters are put in the list of materials and tools, and a sketch of the bracelet is drawn. By the technological map wire is cut into pieces of equal length, ends are tied, beads are threaded on and tied at equal intervals, beads of another colour are then added, the ends are decorated and the extra wire is cut off. In the economic justification the cost (price of wire and beads) is worked out and compared with the price of a similar item on the market; in the environmental justification it is stated that harmless materials were chosen, the workplace was cleaned and the room ventilated. In the advertising part the product’s advantages are written, then a 3–5 minute presentation is given. Wire ends can be sharp and cause injury; wear glasses when cutting so a flying piece does not hit the eye; small beads can be swallowed by small children, so such jewellery is not given to children under 3.

Worked examples
Wire 2 thousand, beads 5 thousand so‘m; cost 2 + 5 = 7 thousand. A similar bracelet in a shop costs 15 thousand: saving 15 − 7 = 8 thousand so‘m.
A bracelet 18 cm long with 6 mm beads in a line takes about 180 : 6 = 30 beads (18 cm = 180 mm).
Class activity

Presentation practice: prepare a 3-minute talk “My bracelet”: why this design, which materials, cost and environmental points. Classmates ask 2 questions and judges grade on 4 criteria (idea, calculation, safety, speech) on a 5-point scale. Cut wire only with goggles.

Practice
1
What materials does a bracelet need?
2
What is cost price?
3
Wire 3 thousand, beads 6 thousand so‘m, shop price 14 thousand. How much is saved, in thousand so‘m?
4
Why are glasses worn when cutting wire?