The ACT Greens have committed more than $50 million in an education package that will support teachers and fund school upgrades, signing up to the Australian Education Union's six-point public education pledge.
ACT Greens leader MLA Shane Rattenbury and fellow lead candidates Veronica Wensing, Indra Esguerra, Caroline Le Couteur and Michael Mazengarb, all signed the pledge at the AEU's Council meeting on Saturday.
Mr Rattenbury said nothing was more vital to the future of Canberra than its schools.
"Our plans for education are about putting the community first and giving our teachers and students the support they need," Mr Rattenbury said.
"Putting the community first means ensuring we invest in our schools – both the infrastructure and our teachers."
The AEU pledge called on candidates to recognise that any government's primary obligation must be to public education.
It also asked for at least 15 new psychologists be employed in the public school system, in implementing the recommendations of the Schools for All report.
It called on candidates to work towards the capping of class sizes, with 22 in preschool years, through to 30 in years 4-6 and 25 in years 11 and 12, and support a reduction in teacher workload.
The pledge asks candidates to ensure the delivery of promised school infrastructure upgrades, with heating and cooling solutions as an urgent priority.
It also asked for candidates to advocate actively for full federal funding under the Gonski agreement.
Mr Rattenbury said the Greens were also committed to opposing the privatisation of the Canberra Institute of Technology.
"Across the country, we've seen hundreds of millions of public dollars flow to for-profit providers," Mr Rattenbury said.
"That's led to some students being unable to afford the costs – and the quality of VET programs going downhill.
"This damaging and elitist model has failed around the country and we need to stop it from reaching the ACT."