The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!
From the Wiki University
What evidence can you provide to prove your understanding of each of the following citeria?
Develop knowledge of opal geology
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Identify the geological conditions suitable for the formation of opal and apply the theories of opal formation Completed |
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Determine sources of opal worldwide and locations of opal fields Completed |
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Apply the principles of grading and quality assessment to opal
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Identify the principles used for valuing opals in terms of base and background colours, predominant colours and patterns, and other factors that influence an opal’s value Completed |
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Apply principles of valuing to determine the potential value of opals Completed |
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Distinguish natural opal from man-made varieties
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Determine the gemmological characteristics of opal based on knowledge of varieties of opal found worldwide Completed |
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Select gemmological instruments to authenticate natural opal Completed |
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Use the selected instruments to authenticate opal Completed |
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Identify substances used to simulate opal and synthetic opal-like substances and compare their characteristics to natural opal Completed |
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Identify and describe the different types of opal
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Identify opals of various types and describe them using correct terminology Completed |
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Develop a general awareness of types of opal treatments and determine which are acceptable in the industry Completed |
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