31 Mar 2023
Sophie Germain (French) was not allowed a real career in math, because she was a woman. She worked in number theory. #WeeklyMathematician
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10 Mar 2023
Gerolamo Cardano (Italian) identified the existence of imaginary numbers based on the square root of negative 1. #WeeklyMathematician
Extra: an EXCELLENT video on imaginary numbers for those students who are ready for it: ow.ly/MZEV50N8vcb #WeeklyMathematician
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10 Mar 2023
Leonardo of Pisa (Fibonacci) is known for the Fibonacci Sequence. He encouraged the use of Arabics in Europe. #WeeklyMathematician
Extra: Draw the Golden Spiral- ow.ly/kLuk50N8v7c or try these human body measurements- ow.ly/qe3B50N8v7b #WeeklyMathematician
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23 Dec 2022
If your class enjoyed #weeklymathematician & want it again for 2nd semester, please like/comment so I know. :) Thanks. - Brigid
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2 Dec 2022
Diophantus worked on complex Algebra problems. He found rational solutions to equations with several unknowns. #WeeklyMathematician
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11 Nov 2022
Muhammad Al-Karaji was 1st to prove binomial theorem (by induction, a mathematical proof method he developed himself!) #WeeklyMathematician
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28 Oct 2022
Gottfried Liebniz developed infinitesimal calculus, solved linear equations w. matrices, and worked with a binary system. #WeeklyMathematician
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21 Oct 2022
Plato (Greek) is known for his Platonic Solids (special 3d shapes). He also worked in proofs and logical methods. #WeeklyMathematician
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14 Oct 2022
Rene Descartes developed cartesian coordinates & analytic geometry. He also was 1st to use superscripts for exponents. #WeeklyMathematician
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7 Oct 2022
John Venn (British) introduced Venn Diagrams to set theory. They're still used today in probability, stats, & logic. #WeeklyMathematician
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30 Sep 2022
Heron of Alexandria (Greece) is known for finding a way to determine the area of a triangle from its side lengths. #WeeklyMathematician
Extra: He also was 1st to compute square roots iteratively. See Heron's Formula w. an applet!- ow.ly/vPk350KYv4R #WeeklyMathematician
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23 Sep 2022
Thales (Greek) worked in early Geometry, especially with similar triangles and right triangles. #WeeklyMathematician
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16 Sep 2022
Julia Robinson (American) worked on decision problems & is known for her hypothesis about Hilbert's 10th problem. #WeeklyMathematician
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9 Sep 2022
Brahmagupta (Indian) developed basic rules for using zero (adding, subtracting, & mult.) & worked w. negative numbers. #WeeklyMathematician
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2 Sep 2022
Bernhard Riemann worked with Non-Euclidean elliptic Geometry (Rules for parallel lines are different) #WeeklyMathematician
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26 Aug 2022
Democritus worked in Geometry & also made advancements with fractions. He developed a formula for the volume of a cone. #WeeklyMathematician
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25 Aug 2022
Planning on doing #WeeklyMathematician this year? Start this Friday (August 26th) so your kids have all facts they need at the end!
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23 May 2022
This is the last week for #WeeklyMathematician! Thanks for joining us! ow.ly/vw3450JfJxp
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20 May 2022
Abraham deMoivre developed analytic geometry and was first to state the formula for the normal distribution curve. #WeeklyMathematician
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22 Apr 2022
Happy Earth Day! Bhaskara I (Indian) was the first to write numbers in the Arabic decimal system with a circle representing "zero." #WeeklyMathematician
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