Recent Talks

Sketchpad 4.0 Talks

• 2008. Scott Steketee. "Do the Wave: Trigonometry Comes Alive with Sketchpad." Presented at the NCTM 2008 Annual Meeting, this talk explores several dynamic activities that can improve student understanding of sinusoids and other trigonometric functions.
  • Download: Handout (.pdf file)
  • Download: Activity Worksheets (.pdf file)
  • Download: Activity Sketches (.zip file)
  • Download: Presentation Sketch (.gsp file)
• 2007. Nicholas Jackiw. "Discrete Mathematics and Dynamic Geometry." Presented at the NCTM 2007 Annual Meeting, this talk explores connections between Sketchpad's land of continuous geometric transformation and subjects drawn from discrete mathematics, where structures are finite (non-continuous). Topics include elementary number theory (multiples, factors, prime numbers, GCDs, Fibonacci numbers, and flower patterns), algorithms, recurrence relations, and Boolean or binary logic.
  • Download: Presentation Sketches (.gsp file)
• 2006. Scott Steketee. "Dynamic Algebra Software: Bringing Functions Alive with Sketchpad." Presented at the NCTM 2006 Annual Meeting, this talk looks at a number of activities in which the power of dynamic mathematics software gives students the opportunity to vary the variables, generate families of functions, and transform functions.
  • Download: Presentation Sketch (.gsp file)
  • Download: Sketches (.zip file)
  • Download: Student Sheets (.pdf file)
• 2006. Nicholas Jackiw. "Sharing What Works: Dynamic Visualizations in Mathematics."

  The plenary address at the PRISM II conference, sponsored by the Ontario Ministry of Education, focuses on a decade of Dynamic Geometry implementation and insights in Ontario. This talk is available as a video-on-demand file from the Ministry's Web site, where it is posted under Professional References here.

  • See a streaming video of this presentation
• 2006. Rhea Irvine and Daniel Scher. "Go Deeper with Young Learners Using Sketchpad." Presented at the NCTM 2006 Annual Meeting, this talk demonstrates Sketchpad activities that actively engage students with the topics of textbook lessons in a variety of math strands. Download the workshop materials:
  • Download: Workshop Sketch
  • Download: Activity Worksheets
• 2005. Steven Rasmussen. "Tessellations & Islamic Art." This workshop investigates what types of polygons can be used to tessellate the plane and how Islamic artists have approached their craft. Download the workshop materials:
  • Download: Workshop Sketch
  • Download: Mosque Tiling Investigation
  • Download: Tessellation Activity Worksheets
  • Download: Symmetry Group Flowchart
  • Download: Annotated Bibliography
• 2005. Nicholas Jackiw and Steven Rasmussen. "Voyages Beyond the Geometric Plane: Advanced Explorations with The Geometer's Sketchpad." Presented at the Hong Kong Polytechnic University, this talk focuses on how the geometry of the Euclidean plane has served as a model in the development of other mathematical topics at the advanced level. Through a Dynamic Geometry perspective, we develop two particularly satisfying results: Euler's formula in complex analysis and the possibility of {k, 3} tessellations of the hyperbolic plane.
  • Download: Presentation Sketch
• 2005. Steven Rasmussen and Nicholas Jackiw. "Sketchpad Activities for Young Learners in Hong Kong." Presented at the Hong Kong Polytechnic University, this talk showcases sample activities connecting Sketchpad to Hong Kong's primary school mathematics curriculum, with correlations to units and dimensions across all content strands in levels 1–6. View the Sketchpad document for this presentation:
  • Download: Presentation Sketch
• 2005. Scott Steketee. "Iterated Functions in Precalculus: Doing It Again and Again with Sketchpad." Presented at the NCTM 2005 Annual Meeting, this talk explores various precalculus topics using iterated functions, and includes a handout, presentation sketch, student activities, and activity sketches.
  • Download: Presentation Sketches
  • Download: Sketches (.zip file)
  • Download: Student Sheets (.pdf file)
  • Download: Iteration Activities
• 2005. Steven Rasmussen, Nicholas Jackiw, Nathalie Sinclair. "Using The Geometer's Sketchpad with Elementary and Middle School." Download the Sketchpad document used in this talk:
  • Download: Presentation Sketch
• 2003. Nicholas Jackiw. "Visualizing Complex Functions with The Geometer's Sketchpad." Lecture at the 6th International Conference on Technology in Mathematics Teaching (Volos, Greece).
  • Download: Download this paper (.pdf file)
• 2003. Steven Rasmussen. "Discovering Geometry Dynamically with The Geometer's Sketchpad." Download the sketches used in this talk:
  • Download: Presentation Sketches
• 2003. Steven Rasmussen. "Rethinking Proof with The Geometer's Sketchpad." Download sketches used in the talk:
  • Download: Presentation Sketches (.sit format)
  • Download: Presentation Sketches (.zip format)
• 2003. Steven Rasmussen. "Beyond Geometry: From Algebra to Calculus with Sketchpad 4." Download the sketches used in this talk.
  • Download: Presentation Sketches
• 2003. Nathalie Sinclair. "Sketchpad for Young Learners: Grades 3-5." Includes sketches, blackline masters, and activity notes for activities for grades 3–5. Materials for this talk are found in the Classroom Activities section.
• 2003. Scott Steketee. "Sketchpad Activities for the First Week of Calculus." Includes handouts and sketches. Materials for this talk are found in the Classroom Activities section.
• 2002. Scott Steketee. "Iteration Through the Math Curriculum: Sketchpad Does It Again and Again."
  • Download: Presentation Sketch (Iteration.gsp)
  • Download: Presentation Sketch (Iteration_After.gsp)
  • Download: Presentation Handout (Iteration_Handout.doc)
• 2002. Homero Flores y Scott Steketee. "Exploración, Visualización, y Demonstración: La Enseñanza de las Matemáticas con El Geómetra." Download the sketches (before and after) in Spanish or view the commentary in English. (Presented at Reunión Latinoamericana de Matemática Educativa, Havana.)
  • Download: Presentation Sketch (Before)
  • Download: Presentation Sketch (After)
• 2002. Nicholas Jackiw and Steven Rasmussen. "GSP4: Dynamic Geometry Across the Curriculum." Download the sketches used in this presentation (in their before or after appearance).
  • Download: Presentation Sketches (Before)
  • Download: Presentation Sketches (After)
• 1998. William Finzer and Nicholas Jackiw. "Dynamic Manipulation of Mathematical Objects." From the NCTM Standards 2000 Technology Planning Conference (Washington, DC).
  • Download: Presentation (Word document)
• 1998 and 1997. Nicholas Jackiw. "The Geometry of Computer Graphics."

  St. Olaf Geometry Project Conferences (St. Olaf College; Northfield, Minnesota).

  • Download: Download All Sketches

Sketchpad 3.0 Talks

• 2000. Dan Bennett. "Functional Relationships in Sketchpad Constructions." California Math Council Northern Section Conference (Monterey, California). Download sketches used in the talk in Macintosh (.sit) or Windows (.zip) formats.
  
  • Download: Presentation Sketches (.sit file)
  • Download: Presentation Sketches (.zip file)
• 2000. Dan Bennett. "Algebra and Geometry Connections with The Geometer's Sketchpad." California Mathematics Professional Development Institute (Emery High School; Emeryville, CA). Download sketches used in the talk in Macintosh (.sit) or Windows (.zip) formats.
  • Download: Presentation Sketches (.sit file)
  • Download: Presentation Sketches (.zip file)
• 1998. Scott Steketee. "Euclidean and Non-Euclidean Geometry with The Geometer's Sketchpad." Internationale Konferenz über Schulmathematik Mathematikunterricht zwischen Abakus und Multimedia (Vienna, Austria: Technische Universität Wien). Download sketches used in the talk in Macintosh (.sit) or Windows (.zip) formats.
  • Download: Euclidean Geometry Sketches (.sit file)
  • Download: Euclidean Geometry Sketches (.zip file)
• 1998. Scott Steketee. "Analytic Geometry with The Geometer's Sketchpad." Internationale Konferenz über Schulmathematik Mathematikunterricht zwischen Abakus und Multimedia (Vienna, Austria: Technische Universität Wien). Download sketches used in the talk in Macintosh (.sit) or Windows (.zip) formats.
  • Download: Analytic Geometry Sketches (.sit file)
  • Download: Analytic Geometry Sketches (.zip format)
• 1998. Scott Steketee and Nicholas Jackiw. "Visualizing Change." Annual Meeting of the National Council of Teachers of Mathematics (Washington, DC): Session 994. Download sketches used in the talk in Macintosh (.sit) or Windows (.zip) formats.
  • Download: Download Sketches (.zip file)
  • Download: Download Sketches (.sit file)