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• TLF-IDM009038

This is a 19-page guide for teachers. It introduces quadratic equations and methods for solving them.

• TLF-IDM009045

This is a 17-page guide for teachers. It continues the development of probability. A careful consideration of outcomes and equally likely outcomes is undertaken. Experiments involving known probabilities are considered and what is observed is compared with what is expected. This is carried out with both small and large ...

• TLF-IDM009160

This is a 15-page guide for teachers. This module continues the development of probability. In year 10, students consider situations involving two or three stages or two or three variables. In the special case of two- or three-step chance experiments, they assign probabilities to outcomes in situations involving selections ...

• TLF-IDM012538

This resource is a dataset providing data for a number of indicators of development over time for more than 200 countries. The indicators fall into the following categories: population, health, economy, environment, work, infrastructure, energy and education, with over 500 sets of data in total. Each set of data can be ...

• TLF-IDM011490

This is a video demonstration of rounding a whole number to the nearest thousand. In the commentary, the presenter explains the thinking behind the process of rounding such numbers and presents a visual representation of rounding whole numbers using a number line. Practice questions with answers are included, and hints ...

• 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-IDM009043

This is a 32-page guide for teachers. This module includes some introductory notions of sampling to obtain random representative data.

• TLF-IDM009048

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

• TLF-IDM012415

This interactive resource consists of a series of questions about converting decimals into percentages. The viewer is required to convert a decimal number into a percentage and enter the answer in a window on the screen. The answer can be checked and, if correct, the viewer moves to the next question. Help is available ...

• 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.