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Mystery man Pythagoras meets his match

What do you know about Pythagoras? Join Vi Hart as she not only explains his theorem but raises some legends about his dark past! Follow Vi's timeline of famous mathematicians to find out in which century Pythagoras lived. See how Vi shows a proof of his theorem and raises what was a big dilemma for Pythagoras: the irrational ...

Teacher resource

TIMES Module 15: Measurement and Geometry: Pythagoras's theorem - teacher guide

This is a 24-page guide for teachers. It contains proofs of Pythagoras's theorem and its converse, applications of Pythagoras's theorem and a discussion of Pythagorean triads. A history of Pythagoras's theorem concludes the module.

Teacher resource

TIMES Module 27: Number and Algebra: surds - teacher guide

This is an 18-page guide for teachers. It introduces surds and discusses their application in mathematics.

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Adding and subtracting surds

This digital presentation gives two examples of solving numerical problems involving the addition and subtraction of surds. An example can be selected and its working and solution are revealed in a series of sequential steps by clicking on the downward pointing arrows. The first example requires only one step to reach the ...

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Multiplying and dividing with surds

This digital presentation gives two examples of solving numerical problems involving the multiplication of surds. An example can be selected and its working and solution are revealed as series of sequential steps by clicking on the downward pointing arrows. The first example is straightforward; however, the second example ...

Teacher resource

Investigating irrational numbers including pi

This is a website designed for both teachers and students that refers to irrational numbers including pi from the Australian Curriculum for year 8 students. It contains material on the real number system and explains how irrational numbers were introduced historically to this system. Information on constructing rational ...