Associate Professor, Dept. of Mathematics, Illinois State University
Normal, IL
Joined August 2015
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Óscar Chávez retweeted
Mental Arithmetic. In the Public School of S.Rachinsky by Nikolay Bogdanov-Belsky, 1895.
The problem on the blackboard is (10²+11²+12²+13²+14²)/365, can you solve it?
Óscar Chávez retweeted
Starting the Fall of 2022, the Elementary and Middle School Mathematics Education Master’s sequence at Illinois State University will be fully online.
See below to sign up for an informational session.
cpb-us-w2.wpmucdn.com/about.…
@MathICTM @SZeppetello @jeremybabel @Normal_Oscar
Óscar Chávez retweeted
In Memoriam: Yulia Zdanovskaya, a 21-year old mathematician, was killed on March 8th, 2022 during a Russian forces attack on Kharkiv, Ukraine. In 2017, Yulia represented Ukraine at the European Girls' Mathematical Olympiad and won a silver medal at the competition.
Óscar Chávez retweeted
This is Yulia Zdanovska. She was 21. One of Europe’s best young mathematicians, a winner of European Math Olympics in 2017. She died under RU shelling in Kharkiv the other day.
#StandWithUkraine #PutinWarCriminal #PutinsKrieg #россиясмотри
Óscar Chávez retweeted
¡Hola! Soy Julio Díaz, campeón nacional mexicano y representaré al país en las Olimpiadas de Rusia 2022♟
Necesito ayuda para financiar vuelos a los campeonatos de preparación, mi tutor y clases.
Puedes apoyarme en esponsor.gg/juliodiaz, compartiendo también ayudas mucho 🙏
Óscar Chávez retweeted
When you get a Bachelors degree, you think you know everything.
When you get a Masters degree, you realize you don’t.
When you get a PhD, you realize no one else does either.
Óscar Chávez retweeted
The story of Ingeborg Rapoport, who, in 2015, 74 years after being denied her Ph.D by the Nazis for being Jewish, she successfully defended her dissertation and received her doctorate at the age of 102, making her the oldest person ever to receive one ow.ly/mYf330oqjSB
Óscar Chávez retweeted
There’s a much easier way to derive the quadratic equation. bit.ly/38g57Ev
Óscar Chávez retweeted
8 years ago today, the best baseball game I have ever seen. Simply known as Game 6.
Óscar Chávez retweeted
Poppy Northcutt, born August 10, joined the Apollo Space program when she was 22. She helped plot return-to-Earth trajectories for Apollo 8 and troubleshoot the Apollo 13 emergency. Happy birthday @poppy_northcutt! #hbd
Óscar Chávez retweeted
Sure, GoogleMaps is cool but not half as cool as ORBIS. The Stanford Geospatial Network Model of the Roman World allows you to check travel times during Roman times. You can choose your mode of travel too! Source: orbis.stanford.edu/
Óscar Chávez retweeted
This month’s prize giveaway is an autographed copy of Gary McKay’s ‘Australia’s Battlefields in Vietnam’. To enter, like, follow and retweet! Good luck! #Giveaways – at Sydney, New South Wales
Óscar Chávez retweeted
#OnThisDay in 1678 Elena Cornaro became the first woman to receive a doctorate degree from a university. She received her doctorate in philosophy from the University of Padua. She would spend the rest of her life as a lay monastic researching and helping the poor
ALT Window depicting Cornaro's conferral
Óscar Chávez retweeted
It is unknown if there are any other powers of 2 whose digits are also powers of 2, apart from 128
Óscar Chávez retweeted
#SaturdaySalute
On this day, 90 years ago, Roger Bannister, the man who made the mile: The Mile, was born. 🎩🇬🇧⏱️
#SirRoger #NeverForgotten #Legend bringbackthemile.com/athlete… – at Harrow, London
Óscar Chávez retweeted
Hey @Nike: I'm told this is in your internal monthly newsletter. True?
If so, it's shameful! Maryam was forced to wear the hijab in Iran. Never wore it when she left and had a choice (see other pics.) Why choose a pic depicting her forced to wear something against her will.
