Parallel Sessions Tuesday, 18 July 2017

Secondary Geometry - 9:45 to 11:45 - Room S3 - 1

[table][tr][td]09:45 - 10:05[/td][td]Tim Brzezinski (USA)[br][url=https://ggbm.at/nKMaxv9w]Using GeoGebra to Discover, Remediate, Differentiate, and Assess (& Why I Created all I Did)[/url][/td][/tr][tr][td]10:10 - 10:30[/td][td]Gerrit Stols (South Africa)[br]Transformation of images using a matrix[/td][/tr][tr][td]10:35 - 10:55[/td][td]Javier Antonio Ríos Rivera & Anuar de Jesùs Oyola Charry (Colombia)[br]The comprehension of the trigonometrical reasons by means of the software GeoGebra in the context of the model of Van Hiele[/td][/tr][tr][td]11:00 - 11:20[/td][td]Bruno Leite Ferreira (Brazil)[br][url=https://ggbm.at/XcwCfVRH]Conic Sections' study using GeoGebra applet[/url][/td][/tr][tr][td]11:25 - 11:45[/td][td]Irma Zulema Martínez (Argentina)[br]Transformations in the plane[/td][/tr][/table]

Teacher Education - 9:45 to 11:45 - Room S2 - 3

[table][tr][td]09:45 - 10:05[/td][td]Houssam ElKasti (Lebanon)[br][url=https://ggbm.at/GnpT26CZ]Collaborative and Iterative GeoGebra PD and its effect on inservice secondary mathematics teachers' practices and TPACK[/url][/td][/tr][tr][td]10:10 - 10:30[/td][td]Judith Hohenwarter (Austria)[br][url=https://ggbm.at/AkEmmVpb]GeoGebra Online Course "Teaching Math with GeoGebra"[/url][/td][/tr][tr][td]10:35 - 10:55[/td][td]Agida Manizade & Darryl Corey (USA)[br][url=https://ggbm.at/vHWAezsn]GeoGebra as a Partner and Extension of the Instructor: Graduate-level Coursework for Mathematics Teachers[/url][/td][/tr][tr][td]11:00 - 11:20[/td][td]Simon Clay (UK)[br][url=https://ggbm.at/vuUQPz5u]Teachers' Professional Development with MEI[/url][/td][/tr][/table]

Calculus - 9:45 to 11:20 - Room S2 - 2

[table][tr][td]09:45 - 10:05[/td][td]Laura Del Río (Argentina)[br][url=https://ggbm.at/Sd6mNtpU]Visualization of limits of functions of two variables[/url][/td][/tr][tr][td]10:10 - 10:30[/td][td]Hans-Jürgen Elschenbroich (Germany)[br][url=https://ggbm.at/ugqxedum]A visual approach to basic concepts of integration[/url][/td][/tr][tr][td]10:35 - 10:55[/td][td]Steve Phelps (USA)[br][url=https://ggbm.at/cx4uYWyY]Next = (Now + 1) / Last[/url][/td][/tr][tr][td]11:00 - 11:20[/td][td]Andreas Lindner (Austria)[br][url=https://ggbm.at/eJRhzuwX]Learning Advanced Analysis with GeoGebra[/url][/td][/tr][/table]

ACA Conference - 9:30 to 11:30 - Room S2 - 5

Live Video Streaming to the Conference on Applications of Computer Algebra in Israel [url=http://www.aca2017.jct.ac.il/]http://www.aca2017.jct.ac.il/[/url][br][br][table][tr][td]09:30 - 09:50[/td][td]Thierry Dana-Picard (Israel)[br][url=https://sites.google.com/site/kovzol/aca2017-atpdg/DanaPicard-ACA2017.pdf?attredirects=0&d=1]Automated study of a curve and its associated curves: the case of an astroid[/url][/td][/tr][tr][td]09:50 - 10:10[br][/td][td]Jiri Blazek & Pavel Pech (Czech Republic)[br][url=https://sites.google.com/site/kovzol/aca2017-atpdg/Pech-ACA2017.pdf?attredirects=0&d=1]Investigation of geometric loci using DGS and CAS[/url][br][/td][/tr][tr][td]10:10 - 10:30[/td][td]Roman Hasek (Czech Republic)[br][url=https://sites.google.com/site/kovzol/aca2017-atpdg/Hasek-ACA2017.pdf?attredirects=0&d=1]Automated theorem proving in school mathematics[/url][/td][/tr][tr][td]10:30 - 10:50[/td][td]Rob M. Corless (Canada)[br]Computer-mediated thinking[/td][/tr][tr][td]10:50 - 11:10[br][/td][td]Zoltan Kovacs (Austria)[br][url=http://test.geogebra.org/~kovzol/talks/aca2017/pres.pdf]Achievements and challenges in automatic locus and envelope animations in dynamic geometry environments[/url][br][/td][/tr][tr][td]11:10 - 11:30[/td][td]Tomas Recio (Spain)[br][url=https://sites.google.com/site/kovzol/aca2017-atpdg/Recio-ACA2017.pdf?attredirects=0&d=1]Automated Reasoning Tools in GeoGebra[/url][/td][/tr][/table]

Modeling - 14:00 to 16:00 - Room S2 - 3

[table][tr][td]14:00 - 14:20[/td][td]Cecilia Zulema González & Marta Fabiana Pauletich (Argentina)[br][url=https://ggbm.at/NZkUeYHM]Adjusting parameters on a mathematical model using GeoGebra[/url][br][/td][/tr][tr][td]14:25 - 14:45[/td][td]Chris Cambre (Belgium)[br][url=https://ggbm.at/v9UGr3fw]Euler and the bridges of Königsberg[/url][br][/td][/tr][tr][td]14:50 - 15:10[/td][td]Irina Boyadzhiev (USA)[br][url=https://ggbm.at/UUdCdH3a]GeoGebra – an environment for diverse applications and explorations[/url][br][/td][/tr][tr][td]15:15 - 15:35[/td][td]Matěj Adámek (UK)[br]Geogebra and Economics[br][/td][/tr][tr][td]15:40 - 16:00[/td][td]Mariana Gabriela Torres (Argentina)[br]Dynamizing a solution of revolution with GeoGebra[br][/td][/tr][/table]

Secondary Geometry - 14:00 to 16:00 - Room S2 - 2

[table][tr][td]14:00 - 14:20[/td][td]Steve Phelps (USA)[br][url=https://ggbm.at/eHMKZ8sa]What-If-Not Conic Constructions[/url][br][/td][/tr][tr][td]14:25 - 14:45[/td][td]Anthony Or (Hong Kong)[br][url=https://ggbm.at/Afnx5b2c]Volumes of Pyramids and Spheres in Ancient Chinese Mathematics[/url][br][/td][/tr][tr][td]14:50 - 15:10[/td][td]Petra Surynkova (Czech Republic)[br][url=https://ggbm.at/pPJPp8RB]Kinematic Geometry: Constructions of Planar Curves[/url][br][/td][/tr][tr][td]15:15 - 15:35[/td][td]Amarzaya Amartuvshin (Mongolia) [br][url=https://ggbm.at/Z2wMt8Wz]Construction of conic sections[/url][br][/td][/tr][tr][td]15:40 - 16:00[/td][td]Bed Prasad Dhakal (Nepal)[br][url=https://ggbm.at/Xwd8mvgQ]Tangent has two point contact with the curve[/url][br][/td][/tr][/table]

STEM - 14:00 to 15:35 - Room S3 - 1

[table][tr][td]14:00 - 14:20[/td][td]Mónica Ester Manceñido (Argentina)[br][url=https://ggbm.at/hpFK4wZr]Using GeoGebra to aid in making a pre-telescopic astronomical device: gnomon shadow markings[/url][br][/td][/tr][tr][td]14:25 - 14:45[/td][td]Horst-Armin Kosog (Germany)[br][url=https://ggbm.at/AP9DQF62]Daylength and Seasons[/url][br][/td][/tr][tr][td]14:50 - 15:10[/td][td]Hans-Jürgen Elschenbroich (Germany)[br][url=https://ggbm.at/kRZzbxEN]Modelling the growth of a crystal[/url][br][/td][/tr][tr][td]15:15 - 15:35[/td][td]Diego Lieban (Brazil)[br][url=https://ggbm.at/Tng4JXDk]Geometric Modelling in a Teacher Training Program[/url][br][/td][/tr][/table]

Making Math Visible - 15:30- 17:00 - Room S2 - 4

[table][tr][td]15:30- 17:00[/td][td]George Hart[br]Workshop Making Math Visible[/td][/tr][/table]

Topic Discussion Groups - 16:30 to 17:00

[table][tr][td][color=#674ea7]Developers Questions & Answers[/color][br][/td][td]Room S2 - 2[br][/td][/tr][tr][td][color=#674ea7]Professional Development & Teacher Education[/color][/td][td]Room S2 - 3 [br][/td][/tr][tr][td][color=#674ea7]New website structure: material categories & community groups[/color][br][/td][td]Room S3 - 1[br][/td][/tr][/table]