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Profile Of : Barrie Galpin

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Barrie Galpin

United Kingdom


barrie.galpin@zen.co.uk

www.tcubed.org.uk


DEMO Description

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Antal resurser (70) |

Circumference

Author: Barrie Galpin

Labels: Circumference

Explore the relationship between radius, diameter and circumference of circles.

Ice and Salt

Author: Barrie Galpin

Labels: Physics

Use a temperature probe to investigate the effect of adding salt to a water/ice mixture.

Exploring our Solar System

Author: Barrie Galpin

Labels: Data, STEM, Physics

Detailed data for the properties of the planets with 10 pages of questions.

Mediators of Triangles

Author: Barrie Galpin

Labels: Geometry

Investigate where mediators of different triangles meet

Transformations of Graphs

Author: Barrie Galpin

Labels: Functions, Transformations

Explore transformations of graphs in a dynamic environment.

Light Law

Author: Barrie Galpin

Labels: Physics, STEM

Use a light probe to explore an example of an inverse square law

Perfect Pitch

Author: Barrie Galpin

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

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

Dimensions of a Circle

Author: Barrie Galpin

Labels: Circumference, Area, Circles

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

Carbon dating

Author: Barrie Galpin

Labels: Physics, Exponential, Functions, Differential equations

Estimate the age of a skeleton and discover exponential functions while investigating radioactive decay.

Reaction times

Author: Barrie Galpin

Labels: STEM, Biology

Pose a question, set up an experiment and analyse your results using TI-Nspire.

Matchsticks

Author: Barrie Galpin

Labels: Linear, Patterns

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

Optimizing the sheep pen

Author: Barrie Galpin

Labels: Various topics, Circle theorems

Discussion of seven different approaches to an optimization problem

The Sine Rule

Author: Barrie Galpin

Labels: Trigonometry

Investigate ratios in triangles that are not right-angled

Shoe Sizes with Box Plots

Author: Barrie Galpin

Labels: Data, Box plots, Time series

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

Hurricane force

Author: Barrie Galpin

Område:  Mathematics

Labels: Environment, Exponential, Measures, STEM

Investigate data from weather stations including wind speeds in different units

How many squares?

Author: Barrie Galpin

Labels: Circles, Mathematical thinking

Encourages a systematic approach when searching for solutions. (Works well with TI-Nspire Navigator)

Coordinates

Author: Barrie Galpin

Labels: Coordinate systems

An introduction to the use of coordinates for younger students

Triangles

Author: Barrie Galpin

Labels: Angles, Triangle

An introduction to the angle properties of triangles and their construction.

Connecting Algebra, Geometry and Graphs

Author: Barrie Galpin

Labels: Linear, Quadratic, 2D shapes, Letters and symbols

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

The Warehouse Problem

Author: Barrie Galpin

Labels: Modelling

Where to position a warehouse in order to minimise travelling distance to the three stores it serves?