## Profile Of : Barrie Galpin

Barrie Galpin

United Kingdom

barrie.galpin@zen.co.uk

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## Total Resources(71)|TypeActivitiesWebinarsVideosLinksfunction elasticsubmit() { $('#type').val($('#type-clone').val()); document.getElementById("elastic-search").submit(); }

Author: Barrie Galpin

Tags: Algebra

Author: Barrie Galpin

Tags: Geometry

Investigate where mediators of different triangles meet

Author: Barrie Galpin

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

Author: Barrie Galpin

Tags: Coordinate systems

An introduction to the use of coordinates for younger students

Author: Barrie Galpin

Tags: Angles, Triangle

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

Author: Barrie Galpin

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

Author: Barrie Galpin

Tags: Modelling

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

Author: Barrie Galpin

Tags: Angles, Circle theorems

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

Author: Barrie Galpin

Topic:  Mathematics

Investigate data from weather stations including wind speeds in different units

Author: Barrie Galpin

Tags: Trigonometry

Investigate ratios in triangles that are not right-angled

Author: Barrie Galpin

Tags: Data, Box plots, Time series

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

Author: Barrie Galpin

Tags: Circumference

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

Author: Barrie Galpin

Tags: Physics

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

Author: Barrie Galpin

Tags: Data, STEM, Physics

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

Author: Barrie Galpin

Tags: Functions, Transformations

Explore transformations of graphs in a dynamic environment.

Author: Barrie Galpin

Tags: Physics, STEM

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

Author: Barrie Galpin

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

Author: Barrie Galpin

Tags: STEM, Biology

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

Author: Barrie Galpin

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

Author: Barrie Galpin

Tags: Circumference, Area, Circles

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