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Profile Of : Barrie Galpin

user

Barrie Galpin


barrie.galpin@zen.co.uk

www.tcubed.org.uk


DEMO Description

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Function Machines

Put a number into the Function Machine and see what comes out. (Includes video tutorial)

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Functions, Coding

Dynagraphs

Explore functions in a novel environment - moving points on two parallel lines.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Andy Kemp

Topic:  Mathematics

Tags: Quadratic, Functions, Exponential, Linear

City Data

Data from 50 cities around the world - all ready to be explored and analysed

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Decimals, Data, Differentiation

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

London Marathon

Times and winners of the London Marathon (1981-2009).

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Data, Time series, Box plots, Sport, Statistics

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

Squaring the Circle

The classic geometry problem of "squaring the circle"

Editor: Barrie Galpin

Author: Adrian Oldknow

Topic:  Mathematics

Tags: History of maths, Geometry

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

Trig Symmetry

A tool to demonstrate that parts of the trig function curves are essentially the same.

Publisher: T³ United Kingdom

Editor: Barrie Galpin

Author: Nevil Hopley

Topic:  Mathematics

Tags: Trigonometry

Moving from Degrees to Radians

Measuring angles using degrees and radians (both decimals and fractions of π).

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Nevil Hopley

Topic:  Mathematics

Tags: Fractions, Decimals, Angles, History of maths, Trigonometry

Population predictions

Real-time population data is used to develop models and make predictions of world population growth.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jonathan Powell

Topic:  Mathematics

Tags: Linear, Exponential, Data

Mediators of Triangles

Investigate where mediators of different triangles meet

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Geometry

Volumes of Revolution

Rotate a curve about the x-axis and explore the volume of the shape generated.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Andy Kemp

Topic:  Mathematics

Tags: Integration

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

The Sine Rule

Investigate ratios in triangles that are not right-angled

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Topic:  Mathematics

Tags: Trigonometry, Sine

Shoe Sizes with Box Plots

Introducing boxplots and using them to compare very large data sets.

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jay Timotheus

Topic:  Mathematics

Tags: Data, Box plots, Time series

Pythagoras' Theorem

Discover, confirm, illustrate and use Pythagoras' Theorem

Publisher: Texas Instruments UK

Editor: Barrie Galpin

Author: Jay Timotheus

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

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