Sebastian Cioaba

Math Books Bridge Advanced Math Jan 2023, lecture

[Sebastian Cioaba @SebiCioaba]

Earlier this year, we finished writing up the solutions for the 700+ exercises in the book. If you adopt our textbook, @amermathsoc will send you the PDF of the solutions manual for free https://t.co/bXJzIHoLMl

[American Mathematical Society @amermathsoc]

Looking for a text to help students transition to advanced mathematics? This new book from Cioaba and Linde eases “the transition from primarily calculus-based mathematics courses to more conceptually advanced proof-based courses...”.

Request exam copy: https://t.co/2SgJ27rmWI

[Footy Humour @FootyHumour]

The referee in this Mexico vs South Africa game

[Houston Texans @HoustonTexans]

Memo Ochoa making NFL field goals look easy 👀

[Daniel Willingham @DTWillingham]

Robert Pondiscio: 19 reasons that knowledge-rich curricula have not been broadly adopted in the US, despite strong research support. I'd add this one: "educators underestimate what young children can learn, and the joy with which they will learn it." https://t.co/NQPakMfP3B

[Pope Leo XIV @Pontifex]

The World Cup begins tomorrow, and many will watch the matches. Soccer reminds us of something we must not forget: life is not a race to show off on our own, but a path we learn to walk together. Anyone who does not know how to pass the ball, even if they have talent, has not yet understood the game. Anyone who does not know how to live with and for others has not yet understood life. #ApostolicJourney

[Selena @SBT564]

Bandit took one look at the baby cow in the back seat and decided his entire life was over. Won't look back, won't be consoled, just sniffling in the passenger seat like a man who has been deeply betrayed......

[Jimmy King @Jimmyking35]

Get ready Philly - Ivory Coast arrived in Wilmington, Delaware today and were welcomed by hundreds of excited supporters of Les Éléphants as the team arrived at their hotel

Ivory Coast will be staying in Wilmington during the World Cup, and will be training at Philadelphia Union’s Subaru Park and WSFS Sports Complex

Les Éléphants will play a friendly against Union II at Subaru Park on June 8th, before taking on Ecuador and Curacao in the World Cup Group Stage in South Philly on June 14th and June 25th

📹: @saedeciv

[Massimo @Rainmaker1973]

What is the sum of all numbers from 1 to 100?

[Jelani Nelson @minilek]

Similar advice for grad students:

Every workshop talk, conference talk, seminar, … is a job talk.

[DAZN Football @DAZNFootball]

The 🐐 trains for the World Cup ⚽️

🎥 via @afaseleccion

[LLF @laligafraudss]

🇵🇹 Roberto Martinez:

"I strongly believe in numerology and the number 6 as a good luck. In 2016 we won the Euros. 1966 was our best result in the World Cup and 2006 we reached the semi finals!"

This is going to be Cristiano Ronaldo's 6th World Cup! 🏆👀

[Jelani Nelson @minilek]

“In addition to overreliance on AI, Garcia also pointed out that many students are underprepared mathematically, a concern echoed by campus associate teaching professor Gireeja Ranade…

Both Garcia and Ranade have joined more than 1,300 UC faculty in signing a petition calling for the reinstatement of ACT and SAT standardized testing scores for STEM admissions in the UC system. The petition and its accompanying open letter detail similar concerns with students’ mathematical preparation.”

[Ororo😎 @McFlybowy]

World Cup is the biggest indicator of life, it’s also very easy to use to track your life, and I’m talking from a fan angle. If you’re watching your 4th World Cup, you can easily picture where your life has been in those 4 cycles.

You remember who you watched it with, the house you were in, the phone you used, the friends you had, the dreams you were chasing at that time. One World Cup you were still in school, another you were struggling to find direction, another you’re working, paying bills, growing up without even noticing it.

That’s why World Cups feel bigger than football sometimes. They come every four years, so they almost act like checkpoints in life. The gap is long enough for everything around you to completely change, but the tournament stays familiar. Same emotions, same nerves, same songs, same feeling when the anthem plays before a big match.

You can literally measure your growth through football memories.

2010? I was just a kid.
2014? Secondary school days.
2018? Different phase entirely.
2022? Real adulthood started hitting.
2026? You’re probably Married

And by the time another one comes around, you realise life never waited for anybody. Players you grew up watching are gone, new stars arrive, and somehow your own life changed just as much too.

[Sebastian Cioaba @SebiCioaba]

@ousman_10 Fool me once …

[Daisy Christodoulou @daisychristo]

When I wrote I Can't Stop Thinking about VAR in 2024 I didn't know that one of the decisive moments of the 25-26 season would involve a hugely contentious VAR decision that might end relegating West Ham - and that I would be in the ground to see it.

But yesterday's match showed all the flaws with VAR I list in my book - plenty of which we were promised would never happen.

- Re-refereeing a match using repeated scrutiny of slow-motion replays - which are proven to alter our decision-making
- The meaning of "clear and obvious" being as clear as mud
- Lengthy stoppages interrupting the flow of the game and killing the joy of spontaneous celebrations
- TV viewers knowing more about what is going on than fans in the ground
- All of the above happening and still massive inconsistencies in how basic rules are applied

Of course Arsenal fans will be delighted with the final decision. I get that. I would be too in their situation. Maybe an unlikely string of VAR calls will go for us in the final games of the season and save us from relegation, and I'll be delighted too.

But regardless of that, is anyone really delighted with the system in general? Eight years after it was introduced in the 2018 World Cup, has it really improved the game?

https://t.co/RtUS5mjgdo

[Marios Karatzias @MariosKaratzias]

🚨 METALLICA just dropped a history bomb in Athens 🔥
Kirk Hammett on stage last night in front of ~80k fans :

“Every time I pick up my guitar I’m playing scales named by your ancestors… Music theory was created right here in Athens by Pythagoras.
Every time I play, I’m playing GREEK CULTURE with my scales. I salute you for inventing the music we’re playing right now!”❤️

Ancient Greece didn’t just give us philosophy and democracy — they gave us the DNA of metal itself.

Tell me again how modern Greeks have “nothing to do” with the ancients? 😂

Metallica spells the truth.
#MetallicaInAthens #GreekMetal #AncientGreeceLives #PythagorasWouldBeProud #Metallica
They had another surprise for the Greek fans when they played Zorba the Greek 🎶 🎸 ⬇️

[Anna Stokke @rastokke]

Practice is the key to getting good at math. Fluency=accuracy+speed and it seems to be getting skipped. Students need to be fluent with foundational math (using abstract symbols––not pictures & concrete materials) if they are to have any hope of succeeding in later math.
https://t.co/GJ9jmsZq4k

[Anna Stokke @rastokke]

🔥 There was a time when the criticism & attacks used to bother me. Now they're just fuel for my fire. More examples to drive home my points & more incentive to keep going. Attack all you want: I'm not going anywhere. I'll always call out bad ideas and poor math pedagogy.

[Sebastian Cioaba @SebiCioaba]

Graph coloring and spectral graph theory

[Carl Hendrick @C_Hendrick]

There is little to no correlation between how highly students rate their instructor and how well they have learned the subject. Evaluations are influenced by factors unrelated to teaching quality, including instructor gender and course difficulty.

Faculty who teach demanding courses may receive lower ratings, not because they teach poorly, but because students conflate challenge with poor instruction. Instructors who inflate grades and reduce rigor tend to be rewarded with higher scores. https://t.co/YAQLQm2UVg

[Anna Stokke @rastokke]

John Sweller developed cognitive load theory. He is my guest in the next episode of Chalk & Talk! Coming tomorrow, March 20. Don’t miss it!