NCTM 2019 GeoGebra Events
Join us at the NCTM annual meeting in San Diego 3-6 April 2019
Twitter: @geogebra

Thursday 1:30-2:30 - (169 BMK) GeoGebra Does THAT? Doing Statistics and Data Analysis in GeoGebra 10–12 Session
GeoGebra—widely used in algebra and geometry
classes—has a robust set of statistics tools. In this
session, you will learn how GeoGebra can be used to
develop quantitative literacy in Statistics or AP Statistics
through doing exploratory data analysis, creating
dynamic data and regression displays, and conducting
inference procedures and simulations.
Steve Phelps
Twitter: @giohio
Madeira High School/ Madeira City Schools, Cincinnati, Ohio
San Diego Convention Center, 29 C
Thursday 3:15-4:30 - (249 LOVE) Problem Solving + Assessment + Technology (GeoGebra and GoFormative) to Build Mathematical Knowledge 10–12 Workshop
Learn to blend problem solving and assessment using
GeoGebra and GoFormative. We will solve, generalize
and assess rich, open-ended, and powerful geometric
and algebraic problems involving functions, polygons,
parallels, and congruence and similarity. Presenters
will share premade files. Bring your own device to fully
engage and collaborate.
Roberto Soto
California State University, Fullerton
Armando Martinez-Cruz
California State University, Fullerton
San Diego Convention Center, 24 ABC
Thursday 3:15-4:30 - (253 BMK) Transforming HS Geometry with GeoGebra: Featuring Activities from Illustrative Mathematics Geometry 8–10 Workshop
New standards have given high school geometry
a fresh start. Dynamic geometry software allows
activities with more opportunities for exploration
and greater accessibility than traditional exercises. In
this workshop, we will explore brand-new Illustrative
Mathematics high school geometry activities using
GeoGebra. Bring a laptop or tablet to join the fun.
Jen Silverman
Twitter: jensilvermath
Independent Consultant, Illustrative Mathematics,
Connecticut
John Golden
Grand Valley State University, Grand Haven, Michigan
Hilton Bayfront, Sapphire AB
Thursday 3:30-5:00 - (Networking Lounge: Math Circles) Award Winning Lessons for your Circle or Classroom
Congratulations to the 2018 Rosenthal Prize winners!Congratulations to Elizabeth Masslich, winner of the 2018 Rosenthal Prize for Innovation and Inspiration in Math Teaching for her lesson “Geometry Project: DARTBOARD.”
In Elizabeth’s lesson, students learn geometric probability using shapes on a dartboard. Elizabeth is a teacher in the Milwaukee, Wisconsin metro area, and was awarded a $25,000 cash prize.
Additional congratulations to the 2018 first runner-up, Hector Rosario of the Atlanta, Georgia metro area, for his lesson “Squareland: Into How Many Squares Can You Cut a Square?” In Hector’s lesson, students generate and analyze patterns by cutting squares into smaller squares while making conjectures and trying to prove their claims. Hector was awarded a $5,000 cash prize.
The Museum also wishes to congratulate the 2018 runners-up, Dwaynea Golden of Hinesville, GA, and Kristen Rudd of Bergen County, NJ, who each received a $1,000 cash prize.
Friday 8:00-9:00 - (294 ASSESS) Is This Vending Machine FUNCTIONing Correctly? 6–8 Session
Understanding what a function is and isn’t is
foundational to the concept of function. In this session,
you will engage with a GeoGebra applet that develops
an initial understanding and definition of function.
Participants will view and discuss eighth-grade
students’ work with the applet. Bring a laptop or tablet
to engage with the applet!
Lara Dick
Bucknell University, Lewisburg, Pennsylvania
Jennifer Lovett
Middle Tennessee State University, Murfreesboro
Allison McCulloch
Middle Tennessee State University, Murfreesboro
Hilton Bayfront, Indigo CG
Friday 9:30-10:30 - (358 LOVE) The Beauty of Harmonic Divisions of Golden Rectangle Designs 6–8 Session
The Golden Rectangle has been employed by artists
from the Renaissance to Modern Times to convey depth
and proportion. Participants will construct Golden
Rectangles using GeoGebra. Diagonal lines drawn
from vertices on rectangular grids will form beautiful
symmetric designs in color and suitable for spectacular
electronic bulletin board displays.
Stephanie Cooperman
Retired, Chester, New Jersey
Neil Cooperman
Millburn School District, New Jersey
Hilton Bayfront, Cobalt 501
Friday 9:454-11:00 - (372 ASSESS) Problem Solving to Elicit Student Thinking 8–10 Workshop
Learn to solve problems, ask meaningful questions,
assess student thinking, and adapt instruction. We
demonstrate various techniques to blend problem
solving and assessment of student thinking. We discuss
polynomials, proportionality, and congruence and
similarity, while using three tools: GeoGebra, Desmos
and GoFormative. Bring your own device.
Armando Martinez-Cruz
CSU FULLERTON, California
Marvin Soto
Los Alisos Middle School, Norwalk-La Mirada, California
Tor Ormseth
Los Alisos Middle School, Norwalk-La Mirada, California
San Diego Convention Center, 30 AB
