This PowerPoint file is intended to be a basic introduction to the concept of the imaginary number "i". The file is animated, but the animation is not necessary. The slides may be printed and distributed to students as handouts or they may be copied onto overhead tranparency sheets.


  • Mathematics > General
  • Mathematics > Algebra
  • Mathematics > Calculus
  • Mathematics > Trigonometry

Education Levels:

  • Grade 9
  • Grade 10
  • Grade 11
  • Grade 12


math, algebra, pre-calculus, calculus, imaginary, complex, number, numbers



Access Privileges:

Public - Available to anyone

License Deed:

Creative Commons Attribution 3.0


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Curriki Rating
On a scale of 0 to 3
On a scale of 0 to 3

This resource was reviewed using the Curriki Review rubric and received an overall Curriki Review System rating of 1, as of 2008-07-23.

Component Ratings:

Technical Completeness: 3
Content Accuracy: 1
Appropriate Pedagogy: 2

Reviewer Comments:

Content here is imaginary numbers. These 4 PowerPoint slides show the basic definition of ‘i’ and how to express answers in complex form. There is no mention of any powers of ‘í’ or standard form or fractions requiring complex conjugate. This may be a good starting point for high school content but would require some extra work depending on the lesson objectives.

Not Rated Yet.

Non-profit Tax ID # 203478467