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A Visit to Sungai Congkak- Part 1

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This was my first MNS outing since my retirement and since COVID.   For a long time we were restricted to trips of 10 km or less.  Now we can travel- so long as we remain within Selangor. Insiders refer to the Malaysian Nature Society as ‘makan non-stop.’   Hence, naturally, our meeting point was the Eng Soon Hoong coffee shop in Hulu Langat.   My review is here Five Stars for a Traditional Breakfast .   After breakfast we drove an additional 11 km to our destination.   Why didn’t we find a restaurant closer to our destination?    In the Islamic calendar it is the fasting month of Ramadan.   Accordingly, all the Malay restaurants are closed during sunlit hours; buka puasa begins at sunset. In Bahasa Malay (and on the Waze map) this location is Kem Latihan & Rekreasi Sungai Congkak.   For monolingual English readers ‘latihan’ is practice or training.   Also did you   notice that ‘ch’ is rendered as simply ‘c’ in Ma...
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 Useful Background  By Chris Patterson, Head of Maths, Kainos International School Some useful ideas in the background while doing integration problems. Vocabulary Base: a factor in a multiplication. For {z\ =\ ax}^p\times\ {by}^q, x and y are bases. Power: the number of times the base is a factor in a multiplication calculation. For  {z\ =\ ax}^p\times\ {by}^q, p and q are powers of their respective bases. Instead of ‘power’ we can say ‘exponent’, ‘index’, or ‘logarithm’.  Coefficient: a constant multiplying a variable term. For  {z\ =\ ax}^p\times\ {by}^q, a and b are coefficients of their respective bases. Factoring and indices (or powers): 60\ =\ 15\ \times\ 4\  60\ =\ 5\ \ \times\ 3\times\ 2\ \times\ 2 60\ =\ \ 2^2\times\ 3^1\times\ 5^1\ \  The power counts the number of times the base is used as a factor. If a factor x is used once, its power is 1.  If a factor is not used, its power is 0.  For example, 11 is not a factor of 60.  T...
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