Mark Horner

Trying to use collaboration and technology to help education in South Africa.

[Siyavula @Siyavula]

⚡ Good news! To make up for yesterday’s technical difficulties, we’ve opened up EXTRA time slots this Thursday and Friday!
Notifications will go out tomorrow, so be sure to check your Siyavula page and messages for details.
Final results will now be announced on Tuesday, 7 Oct.

[BlackBallPen @dinanodamano]

Thank you Mannie Libbok! Thank you coach Rassie for not giving up on him! Hooker, Wiliams, Willemse, Snyman, Kolisi, PSDT, Wiese, Kolbe...what a performance! #NZLvRSA #Springboks dish out the biggest All Blacks defeat (33 points).🫡

[Springboks @Springboks]

Freedom Cup retained 🤝
#Springboks #ForeverGreenForeverGold #NZLvRSA

[Neil deGrasse Tyson @neiltyson]

Every machine in a Hospital that diagnoses your body without cutting you open is based on a principle of Physics, discovered by a Physicist who had no interest in Medicine. If you think the world doesn’t need Basic Science, or that somehow Science has failed you, think again.

[Belkis Wille @belkiswille]

1/ Russia’s escalating attacks on Ukrainian civilians in 2025 have killed more people than in the same period in 2024.
@hrw’s new report documents unlawful strikes that may amount to war crimes. States must act. #Ukraine #WarCrimes https://t.co/0I3ODnsQAo

[Enzo Rossi @enzoreds]

Imagine sitting on a 50-billion endowment and not taking the opportunity to spearhead the defence of academic freedom in your country.

Well at least we know now what these sorts of schools are all about.

[Siyavula @Siyavula]

Turn your learning goals into rewards! Join our #Headstart challenge starting 10 Feb. How?
1. Sign up or log in at https://t.co/vi4k4LTZHI
2. To enter, click the button labelled Start Here.
3. Achieve your weekly goals and get entered into the weekly draw to win vouchers!

[Kyle Niemis 🔜 #ISTE26 @KyleNiemis]

It's official! 🥳 Quizizz has partnered with PhET to bring science teachers something magical. The incredible PhET simulations you love, now with instant feedback and auto-grading!

Check out 50+ of the most popular simulations now on Quizizz: https://t.co/qVAK6qj8ka

@quizizz @PhETsims #edtech #TEACHers #edchat #TeacherTwitter #youcanwithquizizz #quizizz #science #scienceteaching #quizizzforscience

[News24 🇿🇦 @News24]

Economists and governing body associations have warned that this year's above-inflation school fee increases at state schools will result in more parents applying for fee exemptions.

https://t.co/vso0x23fyN

[Allan Gray Orbis Foundation @AllanGrayOrbis]

🌟 Check out our 2025 opportunities!

📚 Fellowship Programme
🎮 @AGEC_ZA
🎓 Grade 6 High School Scholarship
🛠️ @allangraymakers StartUp Academy

Empowering South Africa to dream big & create change. Follow us for updates!

#AGOF2025 #EmpoweringYouth

[Adam Habib @AdHabb]

Spent summer break in SA - Durban, Cape Town and JHB. I am utterly astonished at the turnaround in Durban. From the hedges on the roads being cut, to security on its beaches, to the cleanliness of its city centre which I visited, what a turnaround. Shows you cities can be turned!

[News24 🇿🇦 @News24]

The City of Joburg VIP protection policy declared unconstitutional.

https://t.co/VvHVLvocJU

[BROPOTKIN™️ by blackhart 🐈‍⬛ @peterbropotkin]

Bro is cookin

[Bodil Isaksen @BodilUK]

If you have a resolution to do more good in 2025, why not apply to be our Chair at @DrFrostMaths ?

We care deeply about the potential of maths to change lives. Millions of teachers and students have used our resources and platform.

I’d greatly appreciate if you could share!

[Daily Maverick @dailymaverick]

Fraud and corruption in Gauteng Department of Social Development https://t.co/d1rEenbnwY

[Siyavula @Siyavula]

🎉 Shout out to 2024! 🚀
Ending off the year with some fun facts! 🌟 We’re so proud of everyone who’s been practising, learning, and leveling up their Maths and Science skills with us. 💡
#Siyavula #Edtech #STEM

[Laila Al-Arian @LailaAlarian]

This many Palestinians being killed in one day doesn’t merit a breaking news alert. It’s barely a footnote. We have lost our humanity.

[Wandile Sihlobo @WandileSihlobo]

Folks, South Africa has progressed in land reform.

We are NOT at the 9% progress that people often cite. We are around 25% progress.

And yes, the 30% target won't be the end.

Land reform must continue sustainably. Read our piece here on the progress.
https://t.co/X3BUzRNpph

[News24 🇿🇦 @News24]

Two actuaries have proposed an NHI tax that will force South Africans to choose whether to access benefits from the NHI fund or belong to a medical scheme. | @News24_Business

https://t.co/ZppUmptcRD