☰ Contents · Technology

Kinds of wood and the carpenter’s bench

Lessons 26–29 · 4 lessons · Sh. Sharipov, N. Muslimov, O. Tolipov, Q. Abdullayeva, O. Qo‘ysinov, V. Sattorov, S. Ahmadaliyev, M. Mo‘minova. Mehnat ta’limi (Labour Education / Technology), Grade 5. Sharq Publishing, Tashkent, 2015
26

Woods used in carpentry

Textbook: pp. 45–46
GoalKnow the main woods used in carpentry and their features.
New words
poplar · terakash · shumtoloak · eman (dub)plane tree · chinor
Explanation

Several tree species’ wood is used in carpentry. Poplar has the baqaterak and mirzaterak kinds: the mirzaterak has a straight trunk and gives good-quality logs. Ash wood is pale (whitish-yellow), strong and flexible, and bends well when steamed; it is used in furniture, plywood and shipbuilding. Pine wood is whitish-red, light, resinous and moisture-resistant. Beech (qoraqayin) wood has a beautiful grain but is not moisture-resistant, so bent furniture and drawing instruments are made of it. Oak wood is yellowish-brown, very strong and dense and does not rot in water, so it is used in underground construction and furniture. Plane-tree wood is tough, hard and beautifully grained; plywood and costly furniture are made from it.

Worked examples
A threshold is made of oak or pine so it resists moisture.
For a drawing ruler, firmer beech is preferred to soft poplar.
Class activity

Wood “passport”: each pair picks one tree and makes a card (colour, hardness, uses, a drawing). In class the cards are shuffled for a guessing game.

Practice
1
Which wood is moisture-resistant and resinous?
2
State 2 features of oak.
3
Where is ash used?
4
Why not make outdoor items from beech?