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Number Lines

Number Lines

Linear models of number are very important as they support the development of an informal internal representation of number magnitude, called the mental number line. Different models are best suited to the teaching of different skills and understandings at different levels. This book is designed to help teachers make the best use of number tracks, number grids, and both empty and calibrated number lines.

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Strategies for Going Mental

Much is known about mental strategies and how children use them. Evidence suggests that discussion should play a key part in the development of mental strategies and yet many mental computation sessions are still characterised by the traditional ten or twenty quick question approach. This paper reviews what is known about mental strategies, examines why a certain level of inertia exists and suggests a way forward.

tdt_MC_swan1.pdf 232.47 kB