Browse 7 days of links…
Operatin’ Alive (with intro)
This Silly Math Song, sung to the tune of “Stayin’ Alive” by the Bee Gees, reviews the Order of Operations. (It includes a short intro which will help explain the ‘dear Aunt Sally’ reference in the song.)
21 May 2012 · see details →
A Brief Introduction to Parametric Equations (Tanton Mathematics)
A brief introduction to parametric equations.
15 May 2012 · see details →
Exploring Gradient in Google Earth and Autograph
Using Google Earth to explore a little gradient (Melbourne Airport runway) and bigger gradients (route to school in Bolton), then how it is in coordinates in Autograph.
12 May 2012 · see details →
Derivative Calculator
This online derivative calculator supports symbolic computation of the 1st, 2nd, … derivative of a function. While typing, the input is displayed as a graphical formula, which facilitates entering the expression in a correct way.
7 May 2012 · see details →
The Scale of the Universe 2
Zoom out to the size of the observable universe, zoom in to Planck Length.
29 Apr 2012 · see details →
Radian Measure (TANTON Mathematics)
Earthlings say that there are 360 degrees in a circle. Martians would say that there are 670 degrees in a circle. Mathematicians say that there are 2*pi radians in a circle.
29 Apr 2012 · see details →
Projectile Motion
Shoot a cannon to see how high and far the ball flies.
This Java applet demonstrates the classic kinematics problem of the flight of a cannonball shot over flat ground. While there is no pretty cannon, it does use correct units and gives a clear picture of trajectories. There are options to show trails of the projectile or to turn on a simple air friction. You have control over the initial velocity, initial angle and mass.
29 Apr 2012 · see details →
Projectile Motion Applet
Choose from a biker or archer. Alter the velocity and angle. View from side, front or top.
29 Apr 2012 · see details →
Projectile Motion
Blast a Buick out of a cannon! Learn about projectile motion by firing various objects. Set the angle, initial speed, and mass. Add air resistance. Make a game out of this simulation by trying to hit a target.
29 Apr 2012 · see details →
Red dragonfly mathematics challenge
The Red dragonfly mathematics challenge is an English adaptation of a classic Japanese mathematics problem-solving book. It provides a range of easily understood problems to challenge and stimulate student interest and reward perseverance. All the challenges have been used in primary classrooms and emphasise essential algebraic reasoning.
Also available on iTunes for iPad.
27 Apr 2012 · see details →
Slope Dude
Slope dude loves to ski. He teaches us about slope by talking while he skis the course. We learn from him that uphill slopes are positive, Downhill slopes are negative, flat slopes are zero, and vertical “slopes” are undefined.
27 Apr 2012 · see details →