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<p>On 5/16/22 08:53, Steve Isenberg wrote:<br>
</p>
<blockquote type="cite"
cite="mid:CAL0r4CCbYmzpibS9Ag7X25rBNP9vfTpBz4pD512-Tf1CoTMxVA@mail.gmail.com">Anyone
else remember Chief Soh Cah Toa?</blockquote>
<p>SOH CAH TOA is still taught, though (thankfully) without any
suggested ethnicity. It's one of the few math mnemonics that I
don't consider harmful, because it's not a mnemonic substitute for
actual reasoning. The names of the trig functions are mere
accidents of history. PEMDAS is another example. Compare that with
the execrable FOIL, which is a substitute for reasoning about the
distributive property, which frequently causes students to draw
mental arrows where they don't belong.<br>
</p>
<div class="moz-signature">-- <br>
Jon "Curses! FOIL Again" Dreyer<br>
<a href="http://www.passionatelycurious.com">Math tutor/Computer
Science tutor</a><br>
<a href="http://music.jondreyer.com">Jon Dreyer Music</a></div>
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