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Parallelogram Area

Investigating and developing the area of a parallelogram dynamically.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jon Skinner

Topic:  Mathematics

Tags: Area, Parallelogram

Triangle Area

Discovering the formula for the area of a triangle

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jon Skinner

Topic:  Mathematics

Tags: Triangle, Area

Magic Squares

An investigation into the patterns found in Magic Squares.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Matthew Reames

Topic:  Mathematics

Tags: Arithmetic, Number puzzles

Perfect Pitch

Look for connections and patterns in the frequencies and wavelengths of sequences of musical notes

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Linda Tetlow

Topic:  Mathematics, STEM

Tags: Exponential, Patterns, STEM, Geometric series, Physics, Loci

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

Topic:  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

Topic:  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

Topic:  Mathematics

Tags: Perimeter, Area, Circles, Geometry

Vertical Line (template)

A ready-made Graphs page with a pre-constructed vertical line

Publisher: Texas Instruments UK

Editor: Christopher Rath

Topic:  Mathematics

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

Topic:  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

Topic:  Mathematics

Tags: Mode, Median

Semigrams

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

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: 2D shapes, Geometry

Lift Off

Compare real data about the capacity of passenger lifts in the UK and EU

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Data, Box plots, Averages, Regression

Trial and Improvement

Use trial and improvement to find the roots of a quadratic - multiple representations

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Decimals, Data, Differentiation

Matchsticks

Recording matchstick patterns leads to linear functions. (Contains video tutorial)

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Nevil Hopley

Topic:  Mathematics

Tags: Linear, Patterns

Integer Grid (template)

A ready-made Graphs page on which an integer grid is shown

Publisher: Texas Instruments UK

Editor: Christopher Rath

Topic:  Mathematics

Tags: Coordinate systems

Rotation about the origin (template)

A ready-made Graphs page for rotation about the origin.

Publisher: Texas Instruments UK

Editor: Christopher Rath

Topic:  Mathematics

Tags: Similarity

Optimizing the sheep pen

Discussion of seven different approaches to an optimization problem

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Various topics, Circle theorems