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Pt1420 Unit 4 Assignment

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At first I did not not feel very confident when trying to answer this question because I could not remember the method involved when converting scale. I was able to interpret the question and I understood what it required; however, I could not recall the process involved in reaching the answer. After trying a few different methods and giving it some thought, I remembered what to do. I had learnt how to answer these questions in high school geography and I still had the knowledge, but I just had to go through the process of recalling it. So, the method I used to solve the problem was to write out the scale used in the diagram as a ratio, simplify it and then convert it to a written statement. Thus, I was unsure about how to answer this question …show more content…

This method involves drawing a second line adjacent to the original 4cm line and drawing the 8mm scale onto this line. Then dividing both these lines into four parts to reveal that 1cm represents 2mm. When I came across this question I felt confident in my ability to answer it. Throughout high school I was exposed to many similar questions; because algebra was heavily focused on in my mathematics classes. To answer the question I converted the written instructions into an algebraic statement. So, each sentence was represented by a series of letters and numbers instead of the original words. The algebraic expression that I formed matched one of the possible answers; thus, I felt confident with my final answer. This question is linked to the Australian Curriculum’s ‘Patterns and Algebra’ content descriptor (ACMNA176) which requires children to “create algebraic expressions and evaluate them by substituting a given value for each variable” (ACARA, n.d.). Algebra is essentially the study of mathematical symbols and the rules for manipulating these symbols. Thus, by converting written sentences in symbolic numerical expressions, algebra has been utilised. More specifically, an algorithm has been followed. Algorithms are step by step guides on how to do something. Thus, the series of clear steps listed in this question creates an

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