While multimedia tools have been slow to penetrate instructional methods in some subjects, the math world is bursting with tales of teaching technologies that visualize concepts, adapt to students’ ...

In our mind’s eye, the universe seems to go on forever. But using geometry we can explore a variety of three-dimensional shapes that offer alternatives to “ordinary” infinite space. When you gaze out ...

A road bike frame is essentially three big tubes stuck together in a triangle, four thinner ones to support the rear wheel and a fork to hold the front wheel and allow it to turn. But it’s a lot more ...

For the last decade, mountain-bike geometry largely followed the same script. It seemed like every year bikes got longer and slacker and we all got told that somehow a couple millimeters here and a ...

Test your SAT math knowledge with this quiz. This challenge is inspired by the SAT-style math, designed to test your ...

Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to a ...

A technician often has to sketch or design ductwork and the other parts of an HVAC system. Sometimes you have to sketch the room or building you are working with. This means working with lines, angles ...

Revise the different types of angles and rules for calculating angles. This guide includes interactive activities and a quiz. NEW: Angles in parallel lines Revise alternate, correspondent or ...

Gravel bikes can be designed to cover everything from all-out long-distance racing to gnarly shredding in your local woods. But what is it that sets a race-ready aero rig apart from rowdier, burlier ...

Figure 1: Comparison of earthquake slip determined from surface geodetic displacements with long-term interseismic coupling. Figure 2: Deformation patterns observed in Sentinel-1 interferograms for ...