“We are geometric topologists, and we are interested in visualising knots, surfaces and three-manifolds. Prompted by this, we design 3D printed models of these objects. This movie shows and explains some of the relevant mathematics. 40 more words

## Tags » Geometry

#### Temari Pink 32

I began this thread ball after looking at one of Nana Akua’s works, many times. Over the last 6 months I pondered what the mark was, overall size and just how or if I was thinking I understood what needed to be done. 217 more words

#### Rigor: Trig Ratios

NCTM’s Principles to Actions includes **build procedural fluency from conceptual understanding** as one of the Mathematics Teaching Practices. In what ways can technology help our students build procedural fluency from conceptual understanding? 685 more words

#### Mathematical Impressions: Curved and Straight? - by George Hart

“The elliptic hyperboloid is a beautiful quadratic surface that is “doubly ruled,” meaning that the surface, although curved, contains two straight lines through each point…Here it is applied to the design of a walk-through archway in the teaching garden at the University of British Columbia in Vancouver.”