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Profile Of : Allan Duncan

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Allan Duncan



The Legacy

You have been left one million pounds! How to spend or invest it over 50 years?

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Interest, Tables, Modelling

Connecting Algebra, Geometry and Graphs

Move from words to symbols, to geometric representations, to plotted points and finally to graphs.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Linear, Quadratic, 2D shapes, Letters and symbols, Geometry, Algebra

The sheep-pen problem

Recognise a quadratic in a realistic context and solve an optimisation problem

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Quadratic, Perimeter, Area, Algebra

Pythagoras - two approaches

Areas of squares ...or lengths of sides, squared?

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Pythagoras

The arbelos

Investigate relationships between radii of the semicircles and the perimeter and area of this interesting shape

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Perimeter, Area, Circles, Geometry

Dimensions of a Circle

Derive the formulae for the circumference and area of a circle using multiple representations.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Circumference, Area, Circles, Geometry

Mean or Median?

Distinguish between mean and median from a dot plot

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Argomento:  Mathematics

Tags: Mode, Median