GeoGebra

This is where I'll post or link to GeoGebra files. 

(For more info on GeoGebra in this workshop: see What to Bring.)

Introduction to transformations
Composition
Complex numbers and matrices
Teacher's notes on these files.
Only four basic isometries

In most of those files I use the convention: orange for the original (pre-image), indigo for the image.

To explore some other things I've done with GeoGebra, go to my Applets Directory.
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0. perp bisector 1.ggb
(14k)
Henri Picciotto,
Jun 30, 2017, 7:09 AM
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1. perp bisector 2.ggb
(14k)
Henri Picciotto,
Jun 30, 2017, 7:09 AM
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2. angle basics.ggb
(16k)
Henri Picciotto,
Jun 30, 2017, 7:09 AM
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3. iso ∆ from angles.ggb
(15k)
Henri Picciotto,
Jun 30, 2017, 7:09 AM
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4. ∠ Bisector = Alt → Isos.ggb
(25k)
Henri Picciotto,
Jun 30, 2017, 7:09 AM
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5. Equi ∆ has 3-fold sym.ggb
(24k)
Henri Picciotto,
Jun 30, 2017, 7:10 AM