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Profil : Barrie Galpin


Barrie Galpin

United Kingdom



DEMO Description

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Gesamte Ressourcen(71)|

Angle Theorems

Autor: Barrie Galpin

Schlagwörter: Algebra

Traditional angle theorems explored in a far from traditional way!

The Sine Rule

Autor: Barrie Galpin

Schlagwörter: Trigonometry

Investigate ratios in triangles that are not right-angled

Shoe Sizes with Box Plots

Autor: Barrie Galpin

Schlagwörter: Data, Box plots, Time series

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


Autor: Barrie Galpin

Schlagwörter: Circumference

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

Ice and Salt

Autor: Barrie Galpin

Schlagwörter: Physics

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

Exploring our Solar System

Autor: Barrie Galpin

Schlagwörter: Data, STEM, Physics

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

Hurricane force

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Environment, Exponential, Measures, STEM

Investigate data from weather stations including wind speeds in different units

Mediators of Triangles

Autor: Barrie Galpin

Schlagwörter: Geometry

Investigate where mediators of different triangles meet

How many squares?

Autor: Barrie Galpin

Schlagwörter: Circles, Mathematical thinking

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


Autor: Barrie Galpin

Schlagwörter: Coordinate systems

An introduction to the use of coordinates for younger students


Autor: Barrie Galpin

Schlagwörter: Angles, Triangle

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

Connecting Algebra, Geometry and Graphs

Autor: Barrie Galpin

Schlagwörter: 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

Autor: Barrie Galpin

Schlagwörter: Modelling

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

Circle Angles

Autor: Barrie Galpin

Schlagwörter: Angles, Circle theorems

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

Transformations of Graphs

Autor: Barrie Galpin

Schlagwörter: Functions, Transformations

Explore transformations of graphs in a dynamic environment.

Light Law

Autor: Barrie Galpin

Schlagwörter: Physics, STEM

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

Carbon dating

Autor: Barrie Galpin

Schlagwörter: Physics, Exponential, Functions, Differential equations

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

Reaction times

Autor: Barrie Galpin

Schlagwörter: STEM, Biology

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

Perfect Pitch

Autor: Barrie Galpin

Schlagwörter: 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

Autor: Barrie Galpin

Schlagwörter: Circumference, Area, Circles

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