Chris Lehmann
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clehmann.bsky.social
Chris Lehmann
@clehmann.bsky.social
Founding Principal / CEO - Science Leadership Academy Schools
Co-Author of "Building School 2.0: How to Create the Schools We Need"
Dad to Jakob and Theo.
Still writes here when I can: http://practicaltheory.org
They just keep screaming it out loud.
October 22, 2025 at 11:33 PM
Dialed in. Let’s go.
October 10, 2025 at 12:03 AM
I promise I did more than tell Zac how smart he is... but he is really smart.
August 21, 2025 at 1:48 AM
Seriously… time to kick the kayfabe Ed Secretary back to Connecticut.

They do not care who they hurt.
July 2, 2025 at 12:30 AM
When Theo was very little, doctors weren’t sure he could overcome his challenges to engage in a full HS curriculum.

Today, he presented his senior capstone at SLA - a 50 page paper that showcased his passion for music and social justice.

And thank you to all his classmates who showed up for him.
June 5, 2025 at 3:54 PM
SLA boys played in a VERY high level tourney this weekend. Went 2-4 - three losses were against Top 25 teams.

But the wins were sweet, including this 10-9 win over Harriton HS. We scored the game winner by forcing the turnover and then working it upwind to score.

Amazing play by both teams.
April 28, 2025 at 12:05 AM
The Trump White House believes that the crueler, the more mean-spirited they are, the more popular they will be.

They don't even want to be benevolent dictators.

They simply want to be as cruel as they possibly can.
April 18, 2025 at 3:46 PM
March 8, 2025 at 1:26 PM
Poets from eleven schools meeting and building community. #PhillySlamLeague cc: @mattrkay.bsky.social
February 28, 2025 at 9:54 PM
February 25, 2025 at 3:06 AM
Seriously - can the grown-ups get in the game? Please?
February 19, 2025 at 7:53 PM
The unelected, unvetted, untethered billionaire has just changed his screen name to “Hairy Balls.”

This is all a joke to them. You, me, the lives we lead, the work we do.

They don’t care. They will burn it all down for two reasons:

1) Lining their pockets.
2) Because they can.
February 11, 2025 at 4:34 PM
Clown show.
February 11, 2025 at 3:48 PM
You were saying?
February 10, 2025 at 4:06 AM
Locked in. #GoBirds
February 9, 2025 at 11:40 PM
At least we know why they took the Constitution off the White House website…

Folks, this is a coup d’etat.

They have no interest in the rule of law.
February 9, 2025 at 5:53 PM
His ego knows no bounds.
February 7, 2025 at 11:29 PM
South Bronx Community Charter HS talks about how you recruit and retain diverse educators. #EduCon
February 2, 2025 at 5:09 PM
Listen to students. #EduCon
February 2, 2025 at 2:51 PM
Matt Kay and Jennifer Orr: Good Faith Responses to Bad Faith Arguments about Classroom Race Conversations- such an important conversation today.
February 2, 2025 at 2:34 PM
Philadelphia Learning Collaborative talks about teacher retention and teacher learning. #EduCon
February 2, 2025 at 2:26 PM
Talking inquiry, meaning and joy with @dlaufenberg.bsky.social. #EduCon
February 1, 2025 at 6:32 PM
Talking Larry Cuban, technology and pedagogy with Jen Orr and Karen Work Richardson. #EduCon
February 1, 2025 at 4:03 PM
Reggie Streater, Chair of the Philly Board of Education, gives the welcoming address at #EduCon
February 1, 2025 at 2:31 PM
If I am reading this correctly, they want it to be illegal to call a student by their chosen pronouns.
January 29, 2025 at 11:36 PM