postage calculator
Investigate piecewise functions for the cost of sending letters or parcels with Australia Post.

absolute value dance - Mathematics for Queensland Chapter 2

QuickMath graph plot

• single equation (1:n and n:n relations allowed)
• more than one equation (1:n and n:n relations allowed)
• single inequality
• more than one inequality

• two and three dimensional graph plotter with animation feature
• For 1:n and n:n relations, select Window/2-dim and Equa/0=f(x,y)...
• Winplot Tutorial

behaviour of Northwestern Crows
Northwestern crows drop a type of mollusk called a whelk in order to break the shell. Model this behaviour with a rational / reciprocal function.

Pendulum - investigate relationships between period and the length or the gravitational acceleration. Version 2 also makes allowance for the effect of the initial amplitude.

• version 1 - Walter Fendt
• version 2 - Fu-Kwun Hwang

interpolation polynomials
Fit a polynomial function to a number of points. A unique polynomial function of degree n can be fitted to n+1 points - investigate.

Field Guide to Functions - CalculusQuest

resources page - algebra