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2015

2015

Madeup is a programming language for making things up-literally. Programmers write sequences of commands to move and turn through…

2010

2010

We define a 3D variant of turtle graphics and present the theoretical foundations of 3D turtle geometry. This theory enables one…

2010

2010

Just about anyone, when asked, can respond to the question ‘‘What is your all-time favorite book?’’ I’m no exception–in fact, for…

Highly Cited

2008

Highly Cited

2008

This paper compares the way lessons on systems of linear equations unfold in a classroom in the Negev region of Israel with the…

2006

2006

This chapter gives a cursory introduction to the field of Turtle geometry. Developed as part of a programming language, Turtle…

Review

2005

Review

2005

The purpose of this study is to review the changes that computers have on mathematics itself and on mathematics curriculum. The…

Highly Cited

2002

Highly Cited

2002

Dynamic geometry software provides tools for students to construct and experiment with geometrical objects and relationships. On…

1997

1997

This material introduces extensions to the graphical interpretation of L-systems based on turtle geometry, resulting in a higher…

1997

1997

185 secondary teachers of mathematics responded to a questionnaire asking them to rate their competence with and classroom use of…

Highly Cited

1983

Highly Cited

1983

Turtle Geometry presents an innovative program of mathematical discovery that demonstrates how the effective use of personal…