Describing change (ClassPad)
This replacement unit introduces algebraic models (linear and simple exponential) to describe change in the world around us. The fitting of models to bivariate data is approached via the underlying properties of constant additive or multiplicative change. The unit contains a wealth of data drawn from a range of aspects of the modern world. Extensive notes are provided on the use of ClassPad technology. A .vcp file contains all unit’s data in a Spreadsheet, and also as Statistics variables.
Category:
Replacement Units Archives
Technology:
How to scientific calculator resources
CP172 Inverse Of A Function
Find the inverse of a function algebraically using invert and also view the inverse graphically.
Category:
How to' on Classpad
Technology:
CLASSPAD FXCP400 Resources, How to scientific calculator resources
Year Level:
State:
QLD, Teacher Resources, VIC
CP205 Solving Simultaneous Linear Equations 1
Solve simultaneously the equations 2x – 3y = -1 and x + y = 7 using a traditional step by step elimination method in Main.
Category:
How to' on Classpad
Technology:
CLASSPAD FXCP400 Resources, How to scientific calculator resources
Year Level:
State:
QLD, Teacher Resources, VIC
CP240 Restrict Range Of Solutions With Trig Equations
Two methods to restrict the range of solutions returned when solving trig equations in Main.
Category:
How to' on Classpad
Technology:
CLASSPAD FXCP400 Resources, How to scientific calculator resources
Year Level:
State:
QLD, Teacher Resources, VIC
Generosity – an approach to fractions and percentages.
This unit uses the context of generosity to introduce a need to have a fractional way of thinking about something.
It develops a way of thinking about fractions – the for-every idea – that is the elusive multiplicative model.
Developed over about 5 years, this approach has been tried and seems to work. 🙂
CGA21 Finding the roots of polynomials
This short video shows how to find the roots of a polynomial function up to degree 6, using the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CGC11 Calculating loan repayments
This short video shows how to calculate loan repayments on a reducing balance, compound interest loan using the Financial app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CG601 Drawing a ‘dynamic’ graph
This short video shows how to draw an animated ‘dynamic’ graph showing the effect of changing a parameter upon the graph of a function, using the Dyna Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented. In particular, the effect of changing the gradient value “m” in a linear function of the form y=mx+c is addressed.
CG514 Finding x and y values using a graph
This short video shows how to determine a function’s x and y values from its graph, using the Graph app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CG515 Changing a graph’s View Window
This short video shows how to change a graph’s View Window, using the Graph app of a CASIO fx-CG series graphics calculator, and discusses some of the advantages and disadvantages of different View Window settings. CG20 AU and CG50 AU versions are presented.