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Algebra 1-A

Algebra 1-A. A Journey through time. Number Sets. A number that when squared gives a positive number. Real numbers Imaginary numbers Rational numbers Irrational numbers. A number that when squared gives a negative number. A number that can be made by dividing two integers.

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Algebra 1-A

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  1. Algebra 1-A A Journey through time

  2. Number Sets A number that when squared gives a positive number • Real numbers • Imaginary numbers • Rational numbers • Irrational numbers A number that when squared gives a negative number A number that can be made by dividing two integers A number that has a decimal that goes on forever without repeating

  3. Rational Numbers • Fractions/Decimals • Integers • Zero • Natural Numbers

  4. Number Sets

  5. Time line • 1800 BC – Babylonians show knowledge of Pythagorean squares (found a list of them on a clay tablet) • 1700 BC – Stonehenge was built (Richardson W. H., p. 1) • 1650 BC– Egyptians demonstrate knowledge of math operations (plus) and word problems • 1600 BC – Babylonian tablets found that show signs of basic algebra (one equation 2a+3=7), fractions, quadratic and cubic equations, and square roots

  6. Time line • 1300 BC – Egyptians play a version of tic tack toe similar to the game today. • 776 BC – The first Olympic Games were held in Greece • 360 BC – Geometer uses inequality in a geometric proof of exhaustion • 300 BC – Euclid wrote his book on geometry, The Elements • 250 BC – Archimedes makes pi (22/7) and formulas for finding area of shapes

  7. Why use math?

  8. identify 3.3 0

  9. Practice more!  • Just work on 1-4 for now

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