Cathy Koos

Passionate about teaching, social media, mental health, math, #edtech, #edjustice, AP Capstone, AP Statistics and literacy. She/Her

[Cathy Koos @ckoos1]

Proud mom! #hteatigers #USF #GoBulls https://t.co/jFwNz2FTS8

[Daniel Pink @DanielPink]

Every AI pitch promises the same thing:

Do more in less time. Finally get to the important stuff. Work less.

New research from Berkeley followed real workers for 8 months.

That's not what happened. 👇

[Gabriel @gabriel_horwitz]

You open ChatGPT. You type the question. A clean, structured answer comes back in three seconds. You read it, it makes sense, you move on. You feel like you learned something.

Forty-five days later, a professor walks in and hands you a test you weren't expecting. You don't remember most of it.

André Barcaui at the Federal University of Rio de Janeiro ran the experiment to find out if the feeling was accurate. 120 undergraduate business students, ages 18 to 24. All told to spend two weeks researching AI concepts, ethics, societal impacts, technical foundations, and prepare a 10-minute presentation.

Sixty used ChatGPT freely. Sixty used textbooks, library databases, articles, and standard web search. Then, 45 days later, with no warning, a retention test.

The ChatGPT group scored 57.5%. The traditional group scored 68.5%. Cohen's d was 0.68, a medium-to-large effect. In most grading systems, that's the difference between passing and failing.

This is called cognitive offloading. When your brain delegates thinking to an external tool, it reduces the mental effort required during encoding. Effort is what makes memories durable. Struggling to find, synthesize, and connect information is not an inefficiency in the learning process. It is the learning process. ChatGPT removes the struggle and takes the encoding with it.

Barcaui calls what the AI group experienced "borrowed competence." The answer was structured, the vocabulary was right, the reasoning felt sound. It just wasn't theirs. And 45 days later, it was gone.

The AI group's forgetting curve was steeper and didn't stabilize the way the traditional group's did. The memories weren't just smaller. They were more fragile from the start.

You didn't learn it. You borrowed it.

[FCIS @FCISnews]

Early support influences not just how new teachers begin, but how they grow, perform, and stay. A thoughtful start makes a lasting difference. The FCIS New Teacher Institute can help.

#FCIS #NewTeachers #TeacherDevelopment #EdLeaders #IndySchools

[Sesame Street @sesamestreet]

We're here for you, rain or shine! 💛💚

[Bilim Dünyası @dunyasalbilim]

Basit ve güzel bir anlatımla " tüm çokgenlerin dış açılarının toplamının neden 360 derce olduğunun ispatı. Hiç bir çocuk bu şekilde anlatıldığında bunu unutmaz.

[Howie Hua @howie_hua]

There are three boxes on a table. One contains only apples, one contains only oranges, and one contains both apples and oranges. The boxes are labeled incorrectly. You can pick one fruit from one box, but after that, you must correctly label all boxes.

How do we do this?

[Sesame Street @sesamestreet]

Be you and be kind! ❤️

[Brandon Luu, MD @BrandonLuuMD]

Students who took notes by hand scored ~28% higher on conceptual questions than laptop note-takers.

Writing forces your brain to process and compress ideas instead of copying them.

[Math Files @Math_files]

log (😅) = 💧log 😄

[Reading Rainbow @ReadingRainbow]

The magic is back! Watch an all-day Reading Rainbow marathon on PBS Retro this Saturday, March 14th and relive the stories that made you fall in love with reading.🌈📚

Watch PBS Retro on:
Roku: https://t.co/4dW5uLRKgH
LG: https://t.co/4yk08Pxn5q
& Vizio WatchFree+

[Girl Scouts @girlscouts]

💜 Celebrating #WomenHistoryMonth by honoring the trailblazers, changemakers, and everyday heroes who continue to shape a brighter future. How are YOU celebrating? 👇

[Jeopardy! @Jeopardy]

Ryan Gosling throws a Hail Mary during Final Jeopardy! #ProjectHailMary

[Encyclopaedia Britannica @Britannica]

Plot twist: 67 was a mathematically significant number long before it became a meme.

Here’s what makes it cool:

It is a prime number (can only be divided by itself and 1). But it’s not just ANY prime number. 🧵⬇️

[FCIS @FCISnews]

Session 2 is tomorrow!
We’re diving into Structured Literacy, using data to support every learner, and checking program alignment with evidence-based practices.
Don’t miss it — register now: https://t.co/4FZBN20tA8
#StructuredLiteracy #ScienceOfReading #FCIS

[Yaroslav Trofimov @yarotrof]

For all of you relying on AI for advice.

[Dr. Dominic Ng @DrDominicNg]

Every additional hour a child spends in adventurous play is associated with lower anxiety and a better mood.

More screen time does the opposite.

Why? Adventurous play is free exposure therapy. Kids feel scared, then survive it. Over and over, they learn fear is manageable.

[FCIS @FCISnews]

FCIS is building the future of Florida’s independent school leadership. Through our Prospective Heads Program, aspiring heads gain the skills, networks, and insight to step confidently into headship. Well-prepared Heads lead stable, healthy school communities.

[Girl Scouts @girlscouts]

The 2026 Girl Scout Cookie lineup has entered the chat.. 🍪 Which cookie are you grabbing first? Find them at https://t.co/qO645hTnbZ

[schoolhouse.world @schoolhouse_edu]

After a successful pilot with more than 100,000 learners, we're thrilled to announce our partnership with The College Board to bring free, official SAT® tutoring to all test takers.

Sign up for a free 4-week Bootcamp over Zoom: https://t.co/4saypfzbCc

[Todd Whitaker @ToddWhitaker]

Find solutions.