2. What number multiplied by itself two times equals the radicand?
What is the square root of the following?
How about this?
Talk about square roots…
Rafael
Bombelli
• imaginary number
• there is no number on
the number line that can
be squared to make -1
Renee
Descartes
Anticipatory Set:
1. To prepare the students for the actual lesson on imaginary units and complex numbers, the PowerPoint cover slide is presented.
•Ask the students what they observe. Answers vary from noticing the complex number symbol, the graph, to the artwork. Then, inform the student that all the objects on the
slide have significant meaning in our pursuit of understanding imaginary “i” and complex numbers.
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