demo of system

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Finding composite functions of a quadratic function and a logarithmic function.

Used for LANTITE preparation (Australia). SP = Statistics & Probability strand. Students are shown an unusual chart and asked one of six possible questions.

Used for LANTITE preparation (Australia). SP = Statistics & Probability strand. Students are shown a column graph and asked to calculate the net benefit given the amount invested (randomly generated) and the intervention type (one of seven possible).

Replace two parallel forces with an equivalent single force

Replace three tangential forces with an equivalent force-couple system acting at the center of a circle.

Used for LANTITE preparation (Australia).SP = Statistics & Probability strand. NC = Non Calculator strand. Students are shown an infographic and asked two of five possible true/false questions.

This question asks students to identify trees.

This question asks students to find a spanning tree for simple undirected graphs.

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Used for LANTITE preparation (Australia). NA = Number & Algebra strand. SP = Statistics & Probability strand. Students read a percentage from the chart, and calculate that percentage of the number of children (randomly generated).

Used for LANTITE preparation (Australia). NC = Non Calculator strand. NA = Number & Algebra strand. Students are given the number of people that are fed with 200g of rice (randomised), and the total number of people to be fed (randomised). They need to calculate the weight of rice using proportional reasoning.

Used for LANTITE preparation (Australia). NC = Non Calculator strand. NA = Number & Algebra strand. Students are given the number of pages read (randomised) and number of pages remaining (randomised), and asked to write the proportion read as a simple fraction.

Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.

Just showing how to use the stdev function from the stats extension to calculate the standard deviation of a list of numbers.

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A test of basic concepts to do with SI units and concentrations of solutions.

Finding the confidence interval at either 90%, 95% or 99% for the population variance of a sample. $\chi^2$ tables are used. A single scenario is given.

Counting the number of significant figures and rounding integers and decimals.

Most of the standard prefixes (not hecto, deca though), abbreviations, powers of 10, converting between prefixes for distance, capacity, mass.

Converting between giga, mega, kilo, base, milli and micro, nano. Metres, grams and litres.

2x2 by ad-bc, 3x3 by Laplace expansion, properties of determinants

Multiplication of square and non square matrices, Identity matrices and zero matrices