Teachers Lesson Plans

Aboriginal Voices in Canadian Contemporary Art

-25000

25000 BCE Early geometric designs used and found in archaeological references



-5000

5000 BCE Egyptians use decimals and geometry for surveying, engineering, agriculture



-3400

3400 BCE Symbols used for number, although only straight lines, in Egypt



-2000

2000 BCE Babylonians correctly solve problems with rectangular right prisms and right cylinders.



-1850

1850 BCE Babylonians document what is known as Pythagorean Theorem.



-700

700 BCE Indian Sulbasutras created indicating extensive geometric and astronomical understanding used to construct altars for the Veda people



-575

575 BCE Thales brings Babylonian mathematics to Greece - using geometry to calculate the height of pyramids, distance of ships



-530

530 BCE Pythagoras teaches and creates a society of learning and religious secrecy, probably the first person to prove Pythagorean Theorem.



-300

300 BCE Euclid presents systematic development of geometry in The Elements.



-250

250 BCE Archimedes presents formulae for calculating volume of sphere and cylinder, with an approximation of π.



628

Brahmagupta uses zero and negative numbers in written work



810

Al-Khwarizmi writes work using arithmetic, geography, and astronomy and first work is the source of the word algebra (from al-jabr).



1202

Fibonacci writes work that introduces famous sequence of numbers called Fibonacci sequence.



1303

Zhu Shijie indicates Chinese understanding of what is now known as Pascal's Triangles and sum of sequences.



1482

First mathematics book Euclid's Elements printed.



1543

Copernicus publishes work that the Sun, not the Earth, is the centre of the Universe



1610

Galileo publishes discoveries made with telescopes.



1615

Kepler uses elliptical orbits to document conic sections, beginning early introduction to Calculus



1626

First use of trigonometric abbreviations (sin, tan, cos) in writing by Girard.



1637

Descartes formally applies algebra to geometry, beginning branch now called Cartesian Geometry.



1654

Fermat and Pascal exchange letters to work out formal laws for chance and probability.



1673

Leibniz demonstrates a calculating machine which can multiply, divide, and extract roots.



1678

Newton presents theories of motion, gravity, and mechanics.



1706

The Greek letter π used to represent the ratio of circumference to its diameter.



1713

Bernoulli publishes work documenting probability models and exponential series.



1764

Bayes presents new ideas about chance, now considered Bayesian Theory of Probability.



1823

Babbage begins construction of a large machine (engine), to calculate logarithmic and trigonometric functions.



1858

M÷bius presents a strip of paper with only one side and edge - now known as the M÷bius strip.



1881

Venn diagrams presented as visual in group theory.



1900

Hilbert poses famous problem list as a challenge to the next century.



1915

Einstein offers General Theory of Relativity.



1920

Sierpinski works on Set Theory and presents closed curve leading to fractals.



1936

Turing describes theoretical machine (Turing machine) leading to the modern computer.



1975

Mandelbrot describes the theory of fractals, more fully described in 1982.