Tag Archives: Geometry
Innovative Approaches to Computer-Based Assessment, Part Two
In my previous post, I shared Dan Meyer's analysis of what's wrong with computer-based mathematics assessments. Dan focuses his critique on the Khan Academy's eighth-grade online mathematics course, identifying 74% of its assessment questions as focusing on numerical answers or multiple-choice items. This is … Continue Reading ››
Arthur Ganson and the Excitement of Construction
I first encountered the kinetic sculptures of Arthur Ganson nearly 20 years ago at the MIT Museum. Ganson is an engineer, artist, and inventor whose machines, when set in motion, display a grace you would not expect from metal, gears, and other industrial objects.
Below is a video of one of … Continue Reading ››
Creating Origami Whirlpool Designs with Sketchpad
Tomoko Fuse is a Japanese origami artist whose designs are highly geometric. A Google search for her origami models reveals a plethora of boxes and intricate three-dimensional structures, many of which are folded from multiple sheets of … Continue Reading ››
Sketchpad Reflection Puzzles
In a recent blog post, Karen Greenhaus describes how it's possible to construct familiar corporate logos using Sketchpad. You might start with a rhombus, for example, and then reflect it twice to … Continue Reading ››
The Mathematics of Logos
As you may know, we created a new logo for Key using a circle and rotational animation
to create a visual representation of pi. Karen Coe describes this in her post Branding Isn't About Math. Are You Sure About That? (You can also … Continue Reading ››