For over thirty years Michael has been able to do what he loves: teaching mathematics.  Teaching has led him on a wonderful journey from working with high school students, writing Discovering Geometry and other math materials, and sharing his professional development services with fellow educators.

Most recently his path has led him to some exciting classes as the “mathemagician” with local fifth-grade students. These youngsters explored algebra, geometry, and probability, through a variety of games and puzzles and they did it with delight and enthusiasm. No math anxiety here!

Please browse through our website and see all of the materials which are available:  DG textbook, math supplements, the Games and Puzzles series, geometry videos, and scheduled speaking engagements. Please feel free to contact us for professional development for your school or district. If you were a past student or participant who enjoyed his classes, please let us know. We look forward to hearing from you.

Sincerely, Angie and Michael Serra


October 24, 2015 Maui, Hawaii


"Don't just Cover Geometry, Discover Geometry"


Saturday, October 24, 2015

St. Anthony Junior Senior High School 

1618 Lower Main St, Wailuku, HI 96793

Room - Wong A

8 am registration

8:30 - 10:10 - Session 1

10:30 - 12 noon - Session 2

In session one participants will perform investigations of familiar properties of geometry using a variety of tools (which may include: patty paper, compass & straightedge, dynamic geometry software, double-edged straightedge (DESE), string, balloons, fettuccine, ...).

Download 01.HHO.Don't Cover, Discover.10.24.15

In session two participants will select from among a short list of investigations, one investigation that they do not know the answer to, select appropriate tools, investigate, conjecture, and perhaps even prove their discovery.

Download 02.HHO.Investigations in Geometry.10.24.15