Classroom Timer @ClassroomTimer
Free timers for the classroom. Embeds in Slides, Canvas, Schoology. No signup, no ads, no nonsense. Built by a developer, shared with teachers. 🕐 The Classroom Joined May 2026-
Tweets7
-
Followers0
-
Following65
-
Likes1
Shoutout to every teacher who said "we'll finish this tomorrow" on Monday and is still finishing it on Friday. Have a good weekend. ⏱️ #TeachersOfTwitter
0
0
0
0
0
View Details
@ClassTechTips Timing is one of those tasks. The mental energy spent tracking "how long has this actually been" adds up. A visible classroom timer takes that off your plate — students self-regulate and you stop being the timekeeper. Built one if you're curious: countdownclock.net/classroom
Genuine question for teachers: what do you use timers for that most people wouldn't think of? Transitions and tests are obvious. I keep hearing about uses I hadn't anticipated when I built this. #edtech
Tip: during tests, project the timer at the edge of the screen, not center. Out of direct sightline for most seats. Visible when needed, not a distraction when not. countdownclock.net/classroom #edtech
A small thing that changed how I think about classroom timers: The timer isn't for the teacher. It's for the students to self-regulate without you having to be the timekeeper. Once I started designing for that, the whole UX got simpler. #edtech
The "5 more minutes" timer — when you said 5 more minutes but it's been 12 and the kids have noticed. Free, no signup, embeds anywhere: countdownclock.net/classroom #edtech
Tynker @gotynker
31K Followers 12K Following Tynker - Empowering Kids To Create. Millions of kids worldwide are learning to code with Tynker at home and school. Part of @CodeHS.
Monica Burns, Ed.D #E... @ClassTechTips
78K Followers 9K Following I help make #EdTech easier — blog + books + podcast + club — Find it all: https://t.co/wnbfKM2Wsy — Want to work together? Let’s chat! [email protected]
TeachStarter.com @TeachStarter
2K Followers 690 Following Teach Starter unlocks passion, purpose, and potential for pre-K-6 grade teachers, so they can expand what’s possible for every student.
edWeb.net @edwebnet
15K Followers 5K Following https://t.co/NB875RTOPn is a social learning network that provides free professional learning for preK - 12 educators around the country and the world.
TeachThought @TeachThought
168K Followers 498 Following TeachThought’s mission is to promote critical thinking and innovation education.
We Are Teachers @WeAreTeachers
609K Followers 11K Following We Are Teachers is more than a website, it is a proud community of educators— 3 million strong
Tony Vincent @tonyvincent
76K Followers 19K Following Dad ⭐️ Educator ⭐️ Speaker ⭐️ Former grade 5 teacher ⭐️ https://t.co/qi2FXEflDF
Eric Curts @ericcurts
82K Followers 7K Following Tech Integrationist, Writer, Google for Education Certified Trainer and Innovator, Table-top Gamer, Geek, blog at https://t.co/cQtdbBvrt6
Alice Keeler @alicekeeler
190K Followers 8K Following Find me on Bluesky! https://t.co/2Fx1MoDn4e Educator, EdTech, Mom, Google Developer Expert, #CoffeeEDU
Shake Up Learning @ShakeUpLearning
94K Followers 17K Following Jesus-Follower | Google Certified | Podcaster | Author | Speaker | Teacher | Blogger | Check out the blog to #ShakeUpLearning in your classroom this year!
Vicki Davis @coolcatteacher
151K Followers 8K Following Teacher #edtech 🎙 HOST 10 Minute Teacher Podcast & Cool Cat Teacher Talk Show🏆 Top Teacher Influencer since 2005 🐦 AP CSP Teacher, Mom, IT Coach, Joyful
Cult of Pedagogy @cultofpedagogy
161K Followers 31K Following Helping teachers crush it in the classroom. Find our courses at https://t.co/QpAr75sLAC. Please send inquiries to [email protected].
edutopia @edutopia
1.1M Followers 57K Following Sharing what works in education. 💡 Edutopia is an initiative of the George Lucas Educational Foundation.
Common Sense Educatio... @CommonSenseEd
123K Followers 21K Following Providing free digital learning tools & resources for educators: #DigCit for K-12. Follow us @CommonSenseEdu on Instagram!
Glorius Group @GloriusGroup
23K Followers 3K Following Team of highly motivated 😍 young chemists👩🔬 trying to make a difference in CATALYSIS ⚗🐱 (and beyond): a green key technology of the future.🌍
NileRed @NileRed2
116K Followers 174 Following I make chemistry and science videos | Find me on: Youtube, TikTok, Snapchat, Instagram |
Josh Morgerman @iCyclone
220K Followers 3K Following Hardcore hurricane chaser. Mississippi transplant. Harvard man. Righteous Bay Rat. The #HurricaneMan. Jamaican name: Mawgaman!
Ada Monzón @adamonzon
256K Followers 11K Following Chief Meteorologist @wapatv @wkaq580 @elnuevodia|Founder @ECOEXPLORATORIO Science Museum PR|Fellow CBM CDM @ametsoc|BSc UPR|MSc FSU|Doctor Honoris Causa| EMMY
Deborah Martorell @DeborahTiempo
227K Followers 4K Following 9x Emmy Award-Winning Meteorologist certified by AMS, Blue Origin Astronaut , @NASAJPL & @NOAA Ambassador. Chief Meteorologist TeleOnce & Uno Radio
Sylvia A. Earle @SylviaEarle
187K Followers 479 Following Oceanographer, National Geographic Explorer-In-Residence, Founder of @MissionBlue and 2009 TED Prize Winner. Saving and restoring the blue heart of the planet.
Dr. Robert Rohde @RARohde
65K Followers 884 Following Chief Scientist @BerkeleyEarth. Physics PhD & data nerd. Usually focused on climate change, fossil fuels, & air quality issues.
Michael Beschloss @BeschlossDC
870K Followers 3K Following Author, PRESIDENTS OF WAR, 9 other books. @NBCNews Presidential Historian. @PBS contributor. Born Chicago.
White House History @WhiteHouseHstry
293K Followers 1K Following Founded in 1961 by First Lady Jacqueline Kennedy, the WHHA is the nonprofit, nonpartisan organization entrusted with preserving and sharing White House history.
Museum of the America... @AmRevMuseum
108K Followers 945 Following “A nuanced, warts-and-all telling of the American Revolution.” – CBS Sunday Morning. Open daily in historic Philadelphia, 10 a.m. – 5 p.m. #HowRevolutionary
American History TV @cspanhistory
134K Followers 3K Following Discover the people and events that document the American story. Saturdays on C-SPAN 2 starting at 8 am ET or online anytime at https://t.co/s2ITvuWQye.
Alexis Coe @AlexisCoe
103K Followers 2K Following Presidential historian. NYT bestselling author. Senior fellow @newamerica. American history columnist @nytbr. AlexisCoe.1776 on signal.
U.S. National Archive... @USNatArchives
351K Followers 333 Following The nation's record keeper. Visit: https://t.co/8dGaBVCjMG Policies: https://t.co/KHNUTjM0m1
Walter Isaacson @WalterIsaacson
391K Followers 996 Following The Greatest Sentence Ever Written: https://t.co/DxGTg7n0la Also, bios of Musk, Jennifer Doudna, Leonardo, Franklin, Einstein, Jobs. Professor @Tulane
Brian Greene @bgreene
1.1M Followers 29 Following Theoretical Physicist, Author, Co-founder @WorldSciFest, Professor of Mathematics & Physics, Columbia University
P(David|Kipping) ∝ ... @david_kipping
128K Followers 285 Following Exoplanets & Exomoons, Cool Worlds Lab, Columbia University. Be kind to one another.
Veritasium @veritasium
422K Followers 547 Following An element of truth - videos about science, education, and interesting things.
Katie Mack @AstroKatie
470K Followers 3K Following Cosmologist, pilot, author, connoisseur of cosmic catastrophes. She/her. Dr. Personal account; not representing employer or anyone else.
PBS SpaceTime @PBSSpaceTime
137K Followers 2K Following A PBS show about the universe! Written and hosted by astrophysicist Matt O'Dowd @matt_of_earth
Amazing Physics @amazing_physics
584K Followers 17K Following Exploring the universe through physics. From mind-bending theories to real-world wonders—making science simple and fascinating.
Brian Cox @ProfBrianCox
2.9M Followers 1K Following Professor of Particle Physics at The University of Manchester![Cool science videos! Trying to get people excited about learnin'
email: minutephysics [at] gmail [dot] com he/him](https://pbs.twimg.com/profile_images/1408136716/OMP_logo_brush_square2.jpg){kind=logo}
Henry Reich @minutephysics
254K Followers 70 Following Cool science videos! Trying to get people excited about learnin' email: minutephysics [at] gmail [dot] com he/him
Nature Physics @NaturePhysics
440K Followers 805 Following A journal for cutting-edge physics research. Facebook: https://t.co/R7YLdoW5ym… Instagram: https://t.co/1kC90d1rgc
Space Telescope Scien... @SpaceTelescope
253K Followers 860 Following Mission Operations Center for NASA's Webb Space Telescope (#NASAWebb). Science operations for the Hubble Space Telescope and upcoming Roman Space Telescope.
John Preskill @preskill
257K Followers 1K Following Theoretical physicist @Caltech, Director of @IQIM_Caltech
Richard Dawkins @RichardDawkins
2.9M Followers 344 Following UK biologist & writer. Richard Dawkins Foundation donor: https://t.co/rZZdjPpkJM. For Details about the Upcoming Tour: https://t.co/sSo5FL7aLJ
Kording Lab 🦖 @KordingLab
63K Followers 3K Following Konrad kording, @Penn Prof, deep learning, brains, #causality, rigor, https://t.co/tTJW05RRfa, https://t.co/qf7ZHxjaK1, Transdisciplinary optimist, Dad, Loves outdoors, 🦖
Prof. Nikolai Slavov @slavov_n
38K Followers 267 Following Mentor, scientist & engineer. Director of @ParallelSqTech. Having fun in @SlavovLab with single-cell proteomics & ribosomes. Organizer of @SCP_meeting
Beth Shapiro @bonesandbugs
27K Followers 900 Following I'm an evolutionary (paleo)biologist & Chief Science Officer @colossal!
Lior Pachter @lpachter
65K Followers 2K Following Bren Professor of Computational Biology @caltech. Blog at https://t.co/FFQzhEsmhi. Tweets represent my views, not my employer's. #methodsmatter
george church @geochurch
76K Followers 22 Following Professor @Harvard @MIT @PGorg @WyssInstitute tech dev: #CRISPR #NGS #BRAINi
Pardis Sabeti @PardisSabeti
36K Followers 375 Following Professor @harvard @HarvardChanSPH @broadinstitute using genomics to impact infectious disease. Views are my own. @sabeti_lab @1000daysband
Manolis Kellis @manoliskellis
46K Followers 4K Following Dissecting disease mechanism. Single-cell, Epigenomics, Regulatory Genomics, Disease Genetics, Brain, Cancer, Metabolism. @MIT Prof, @MIT_CSAIL, @BroadInstitute
Dr. Angela Rasmussen @angie_rasmussen
500K Followers 8K Following Virologist working at but not speaking for @USask. Co-EIC @Els_Vaccine. Jeopardy! loser. "Disreputable vaccine cheerleader." 🇺🇸in🇨🇦. Opinions mine. she/herTrends for United States
You might like
Elon Musk
@elonmusk
240.1M Followers
Barack Obama
@BarackObama
119.3M Followers
Donald J. Trump
@realDonaldTrump
111.6M Followers
Cristiano Ronaldo
@Cristiano
108.7M Followers
Rihanna
@rihanna
97.2M Followers
NASA
@NASA
92.1M Followers
Justin Bieber
@justinbieber
90.5M Followers
Taylor Swift
@taylorswift13
80.5M Followers
Lady Gaga
@ladygaga
72.1M Followers
Kim Kardashian
@KimKardashian
69.3M Followers
YouTube
@YouTube
68.6M Followers
Virat Kohli
@imVkohli
68.4M Followers
Bill Gates
@BillGates
63.3M Followers
CNN
@CNN
61.9M Followers
Neymar Jr
@neymarjr
60.9M Followers
X
@X
60.9M Followers
CNN Breaking News
@cnnbrk
59.9M Followers
Selena Gomez
@selenagomez
59.8M Followers
PMO India
@PMOIndia
58.4M Followers
The New York Times
@nytimes
53.5M Followers