There are many ways to remember the expression SOHCAHTOA. Just writing it out and using it a lot creates the familiarity that you need, but there are other things that you can do, too.
1 ~ Make a poster of it and place it over the bathroom mirror for a few days.
2 ~ Repeat it, mantra like, for 10-20 second bursts while you do something rhythmic like walking, running, swimming, or riding a bike.
3 ~ Learn an acronym. The Greek word “akros” means “tip,” so acronyms are words or expressions usually made from the first letters (tips) of other words. For example, many people remember the colours of the rainbow … Red, Orange, Yellow, Green, Blue, Indigo, Violet … by learning the “man’s name,” ROY G BIV.
Although Sin(x) = Opp/Hyp, Cos(x) = Adj/Hyp, and Tan(x) = Opp/Adj has the acronym SOHCAHTOA, this need not stop us from creating other acronyms for the same expression:
You can search the Internet for more (there is quite a variety and something to suit all tastes), but why not make up one of your own? The more outrageous and funny it is, the easier it will be to remember.
4 ~ Of course, you could always chant SOH-CAH-TOA to music! You might try one of these songs that I found on YouTube (or make up one of your own):
The first is a rather addictive song by Jonathan Mann, the second is Gettin’ Triggy Wit It based on Will Smith’s Gettin’ Jiggy Wit It, the third uses Bruno Mars’ Nothing On You, and the fourth video will remind you of Lady GaGa’s Poker Face. They may give you some good ideas.
Having said all that, you CAN invest too much time in all the ‘learning tricks’ … while the best learning is to simply write and use it as often as possible. In other words, if you solve quite a few simple trigonometric problems you will not only remember SOHCAHTOA, but will also remember what it means and how to use it (and why).
Our daughter Angelina was home schooled and from the start did not like maths. Over the years I have battled through, trying 5 different programs along the way. Angelina was surviving but not enjoying the journey but, when it came to algebra, the future looked dim. A friend recommended Graeme to me as her three sons had been tutored by him. She could not recommend him more highly. My daughter has just finished year 12 maths and did very well, thanks to Graeme (that would be an understatement). Graeme has a love for his subject and a genuine interest in his students. Graeme seems to meets his students where they are and tailors the lessons to meet their individual needs and interests. Graeme not only explains concepts clearly, but we all found him an interesting, knowledgeable and humble man. We are extremely happy that Graeme was recommended to us. Now our daughter is looking forward to uni with a grateful heart. We also could not recommend Graeme more highly.
Angela K (parent, 2013)
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