Logarithms – when adding is multiplying (9860)
This unit aims to provide a simple/useful way to thing about logarithms when first meting them.
We use two examples of “hard” to graph data (due to the extreme range in the values) to alert students to the idea of thinking about a number as its power, as opposed to its absolute value.
The rest of the unit aims to establish a way to think about calculating with logarithms that will set a sound foundation for later on and that builds on their knowledge of ‘indices’ from previous years.
Exponential and trigonometric functions
A selection of documents that share some nice ideas about exponential functions, trigonometric functions and a lovely context where both concepts come together.
Category:
General Resources
Technology:
CLASSPAD 300/330, CLASSPAD FXCP400, FXCG20/50AU
A quick list of sample means.
Download a program that will creates the number of samples you desire, of a size you define from a normal population with standard deviation and mean you define.
Developing ways-of-thinking about the ideas that form calculus
This video and documents outline a 4 session course that aim to assist students to develop the optimal ways-of-thinking about the ideas that underpin calculus.
CG114 Working with angles – converting to and from degrees, mins and secs
This short video shows how to convert angles measured in degrees minutes and seconds to and from angles expressed as decimals using the Run-Matrix app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CGA11 Solving a system of simultaneous equations
This short video shows how to solve a system of linear simultaneous equations using the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CG223 Fitting a regression model to bivariate data
This short video shows how to generate a regression model of “best fit” for bivariate data via a scatterplot drawn using the Statistics app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CGA31 Solving an equation
This short video shows how to solve ‘any’ equation using the numerical solver in the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented. Changing the ‘seed’ to obtain an alternative solution, and the graphical representation of multiple solutions, is included.
CGA32 Solving for unknowns in formulae
This short video shows how to find the value of an unknown, via the substitution of known values into a formula and the use of the numerical Solver in the Equation app of a CASIO fx-CG series graphics calculator. CG20 AU and CG50 AU versions presented.
CGI11 Fitting a function to a picture
This short video shows you how to fit a quadratic function to a picture of the Sydney Harbour Bridge using the Picture Plot app of a CASIO fx-CG20AU.