Construct some of the centres of a triangle and investigate relationships between them, discovering the Euler Line

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic: Mathematics

Experience reflection dynamically: relationships between the object, the image and the position and orientation of the mirror.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jay Timotheus

Topic: Mathematics

A dynamic approach to enlargement and similarity

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jay Timotheus

Topic: Mathematics

The classic geometry problem of "squaring the circle"

Editor: Barrie Galpin

Author: Adrian Oldknow

Topic: Mathematics

Investigate where mediators of different triangles meet

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic: Mathematics

A square is dissected to form three triangles and a quadrilateral. What fraction of the square is each part?

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic: Mathematics

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

Topic: Mathematics

Seven activities in which students investigate angles in circles using basic geometric constructions.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic: Mathematics

Enlargement/reduction from the origin (template)

A ready-made Graphs page for enlargements centred at the origin.

Publisher: Texas Instruments UK

Editor: Christopher Rath

Topic: Mathematics

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

Topic: Mathematics

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

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Allan Duncan

Topic: Mathematics

Investigate shapes formed by joining mid-points of adjacent sides of a quadrilateral.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic: Mathematics