Discover and read the best of Twitter Threads about #MathChat

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🔦 Now available: the *first national look* at how 9-year-olds' math and reading achievement compares to pre-pandemic performance. Here is what you need to know ⬇️

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#NAEP #Education #EdChat #ELAChat #MathChat #EdEquity #EdData @usedgov @IESResearch @EdNCES @GovBoard
The initial results from 2022 show the first-ever declines in math & the largest drop in reading achievement since the 1980s. "These are some of the largest declines in 50 years," says Acting NCES Assoc. Commissioner Daniel McGrath. nationsreportcard.gov/highlights/ltt…

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The results underscore the widespread educational disruptions that occurred during the COVID-19 pandemic. Prior to the pandemic, lower-performing students were already experiencing declines. Since 2020, students at all levels are moving backward. nationsreportcard.gov/highlights/ltt…

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Read 10 tweets
Fun puzzle this morning: Suppose you are playing a #wordle-like game where you are trying to guess a three-digit string of numbers (like 318 or 087). What's the maximum number of guesses you would ever need to identify the number string?
#math #mathchat
A few people have suggested the maximum number of guesses is 6, but I think you can always do it in 5! (Five, not five factorial.)
First three guesses: 123, 456, 789.
Three hits and you're at most two guesses away by cycling.
Two hits, and a strategically chosen fourth guess involving a hit repeated twice and a 0 will get you there in 5.
Same for one hit.
Zero hits and it's 000.
Read 4 tweets
The gradient descent algorithm should become a standard part of high school calculus courses. This material is a tiny extension of existing calculus material, but vital to the future of information technology through its role in artificial intelligence. 1/
[Disclaimer: opinions in this thread are my own, and not my empoyer's.] In this thread: what is gradient descent and how does it fit into AI? How does this serve students? How does this material fit into calculus? Is this material at the right level for high schoolers? 2/
Background: Mathematical optimization is core to many economic sectors. Off the top of my head: prominent in operations research and logistics, engineering (for pretty much every engineering field in one form or another), economics, and more. 3/
Read 25 tweets
#math Problem of the Day!
I have 26 students and my classroom is 24' * 22'

Where should I put the desks?
#makeitreal #mathchat #mtbos #iteachmath #msmathchat #122edchat #COVID19 #SocialDistancing
Thanks for the pic @gwaddellnvhs
My 8th grade daughter made this and said:
"This gets you 20 students with an illegal teacher zone."

Can you come up with something better?
#makeitreal #mathchat #mtbos #iteachmath #msmathchat #122edchat #COVID19 #SocialDistancing
Read 4 tweets
2018: My Year of Reading. A thread that follows my reading journey from January to December. Every book I've read with a 280 character review. Tagged a few folks who influence the shape of my literary life 📚 #THEBOOKCHAT #DisruptTexts #TeachLivingPoets 📚
1. Never Let Me Go; Kazuo Ishiguro: A supremely crafted narrative begins unassumingly, but quickly reveals a different notion of childhood innocence and coming of age. The conversational tone fooled me into thinking I was walking into a world I understood. Nobel worthy.
2. We Should All Be Feminists; Chimamanda Ngozi Adichie: As an author who breathes eloquence, Adichie doesn't disappoint. This short book/long essay is insightful and logical and human. If we want to raise boys without the toxic masculinity, this is on the required reading list.
Read 61 tweets

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