Complex numbers - logs Tarsia jigsaw

Engage your students with this Tarsia jigsaw puzzle while they learn how to find the log of a complex number. Suited to groups of two or three or use them individually.
Skills included:
• Finding the log of a complex number.
• Applying log laws.
• Converting complex numbers between polar and exponential form.
• The need for radians in exponential form.
• Converting angles between degrees and radians with pi.

Students do lots of thinking and learning. Small groups work really well as there is the shared goal of completing the puzzle. All students contribute as they all work at the same time and at their own pace on the same or different pieces. The activity also encourages maths talk.
I recommend you print the output onto coloured card, then file and store for future use. It is useful to store a printout of the answers with the cards so you can easily see the topics covered. But you can also print them on paper and ask students to cut them up.

Formats included:
• Tarsia file for use with the free Formulator Tarsia programme (http://www.mmlsoft.com/)
• pdf files for those without access to the free programme.
• Answers included in both formats, although the activity is self-marking.
• Both i and j versions.

See also: Complex numbers exponential, trig polar forms Tarsia jigsaw.

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