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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!

City Data

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Decimals, Data, Differentiation

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

Trig Symmetry

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Trigonometry

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

Turn, turn, turn, turn

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Transformations

UPDATED. Four rotations of 90° and you get back to where you started .... always?

Time of Death

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Physics

Collect temperature data and use an exponential model to estimate time of death.

Hurricane force

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Environment, Exponential, Measures, STEM

Investigate data from weather stations including wind speeds in different units

GB Olympic Medals

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Data, Sport

UPDATED. How many Olympic medals will Team GB win in Rio 2016?

Olympic Cycling

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Data, Tables, Sport, Geometry

Four problem-solving activities on the theme of track cycling.

STEM calculator guide

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: STEM, Standard form, Notation

A guide to using the handheld to perform calculations typically done in Science, Technology, Engineering and Maths. (Revised for v3.2.)

Adding Fractions

Autor: Barrie Galpin

Fach:  Mathematics

Schlagwörter: Fractions, Similarity

Innovative way to explore fraction concepts, particularly equivalence and addition.

Centres of a Triangle

Autor: Barrie Galpin

Schlagwörter: Circles, Zeros, Geometry, T3

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

Averages with dice

Autor: Barrie Galpin

Schlagwörter: Averages, Expected frequency, Randomness, Probability

Simulate the throws of one or more dice, predict and tabulate outcomes. Plot the data and obtain averages and the range.

Circle Theorems

Autor: Barrie Galpin

Schlagwörter: Temperature

Explore five circle theorems by moving lines and points around the TI-Nspire screen.


Autor: Barrie Galpin

Schlagwörter: Reflection

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

Relative Frequency

Autor: Barrie Galpin

Schlagwörter: Frequency, Probability

Animation comparing absolute and relative frequencies for simulated dice throws and coin tosses

Power and Exponential Laws

Autor: Barrie Galpin

Schlagwörter: Exponential, Powers and roots, Scattergraphs, Logarithms, Modelling

Modelling situations where experimental data suggests there may be either power or exponential functions

Straight-line Graphs

Autor: Barrie Galpin

Schlagwörter: Linear, Patterns, Functions

Introducing the connection between linear equations and straight-line graphs

Similar Shapes

Autor: Barrie Galpin

A dynamic approach to enlargement and similarity

Triangle construction

Autor: Barrie Galpin

Schlagwörter: Fractions

When constructing triangles, why is there only one possibility?

Crop Circles

Autor: Barrie Galpin

Schlagwörter: Polygons, Triangle, Symmetry

Geometrical constructions and patterns in the context of crop circles