Value-added measures employ mathematical algorithms in an attempt to isolate an individual teacherâs contribution to student learning from all the other factors that can influence academic achievement and progressâe.g., individual student ability, family income levels, the educational attainment of parents, or the influence of peer groups.
882 pages on this wiki. Creosote Oil is used to preserve Wooden Ties against rot and decay. The particular properties of this oil derived from Coal or Wood helps to waterproof and protect wood against many forms of insects and bacteria that would otherwise destroy it quickly. Creosote Oil. You can collect it in bottles, buckets, or cans. When you make wooden ties with a bottle you lose the bottle in the process, but a bottle is cheap to make using three Glass blocks in a V pattern.
Tea tree oil (TTO), or melaleuca oil, is an essential oil with a fresh camphoraceous odor and a colour that ranges from pale yellow to nearly colourless and clear. It is taken from the leaves of the Melaleuca alternifolia, which is native to Southeast Queensland and the Northeast coast of New South Wales, Australia. Tea tree oil is toxic when taken by mouth, but is widely used in low concentrations in cosmetics and skin washes. Tea tree oil has been claimed to be useful for treating a wide variety of medical conditions. It shows some promise as an antimicrobial.