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• TLF-IDM008601

This is a 15-page guide for teachers containing explanations of the derivation of formulas for the areas of parallelograms, trapeziums, rhombuses and kites. Formulas for the volumes and surface areas of prisms and cylinders are obtained. Applications of these formulas are given. A history of the development of these concepts ...

• TLF-IDM008605

This is a 23-page guide for teachers, providing an introduction to the financial mathematics component of the number and algebra strands for years 9 and 10. A brief history of the concept of money concludes the module.

• TLF-IDM008824

This is a 17-page guide for teachers. This module introduces the idea of ratios and rates. Ratios are used to compare two quantities. The emphasis is usually on comparing parts of the whole. Rates are a measure of how one quantity changes for every unit of another quantity. It relates the ideas of ratios, gradient and fractions.

• TLF-IDM009048

This is a 26-page guide for teachers. It extends the study of indices to rational indices and introduces logarithms.

• TLF-IDM012006

This is an interactive resource about statistics that allows students to investigate the effect of different datasets on the mean, median and mode. The student can enter data by selecting the central graph section of the screen to add, remove or move blocks, or by typing into the text area of the screen. The three different ...

• TLF-IDM009161

This is a 19-page guide for teachers. This module continues the development of probability. A careful consideration of outcomes and equally likely outcomes is undertaken. In year 9, students consider situations involving two stages or two variables, including the special case of what are sometimes called two-step chance ...

• TLF-IDM008604

This is a 24-page guide for teachers. It contains proofs of Pythagoras's theorem and its converse, applications of Pythagoras's theorem and a discussion of Pythagorean triads. A history of Pythagoras's theorem concludes the module.

• TLF-IDM009037

This is a 13-page guide for teachers. It introduces the use of formulas, and includes substitution and the solution of the resulting equations.

• TLF-IDM012007

This is an interactive game for two students in which they solve algebraic equations, similar to 'Connect four'. The players can choose from problems that are one- or two-step, quadratic, have distributive properties or have variables on both sides, and more than one problem type can be chosen. The length of time each player ...

• TLF-IDM013743

This is a website designed for both teachers and students that addresses indices from the Australian Curriculum for year 9 students. It contains material on indices and explains the index laws and their use with integer indices. There are pages for both teachers and students. The student pages contain interactive questions ...