Tinetti told media the sector had been "crying out for" a common practice model for teaching literacy and numeracy. They were being taught differently between schools, and sometimes between different classrooms in the same school.
But asked if teachers would now be told they all had to do the same thing - in the manner of national standards - Tinetti said that was not the case.
The model would be based on the same underlying principles, but would allow for different flavours, she said.
The action plans say the common practice model will be based on evidence and schools may need to review their assessment systems. But they also say the direction and content of the model has not yet been established.
The ministry will work with experts for the rest of 2022 on a draft and consult the education sector in the first half of 2023.
Tinetti said some elements were already being developed. She pointed to the Better Start Literacy Approach that has been rolled out for New Entrant teachers, showing there was a "clear pathway that we're heading along".
"That gives an idea around what's happening already. We're on this journey," she said. "It's really important that we didn't say 'This is what you must do', because actually, that's what was wrong with National Standards ... It just didn't work. We have to reflect the NZ context, we have to reflect what the sector knows already."
The Better Start Literacy Approach is a New Zealand-developed approach to teaching literacy for Years 0 and 1, which uses a systematic, explicit approach to teaching reading and writing and is based on the science of reading. Some experts spoken to by the Herald have said it is essentially a Kiwi version of the "structured literacy" approach, though it only covers the first year of school.
Asked if that meant the new literacy common practice model would be based on structured literacy, Tinetti said that "there's certainly a place there now with structured literacy. We've already signalled that with the Better Start Literacy Approach - that sends a pretty strong signal."
The plan says new literacy tools such as Ready to Read Phonics Plus books, which teach children to read by making links between letters and word sounds, will be part of the strategy.
It will also work with the Teaching Council "to strengthen the literacy and communication capabilities of teachers in their first two years of teaching".
The plan also says: "We are currently trialling literacy and communication packages for ākonga (students) in Years 2-8 who need additional support for learning to read. Packages will be diagnostic, explicit, systematic, and cumulative. They will build phonemic awareness, the alphabetic principle, fluency, vocabulary knowledge and comprehension skills."
Other key changes include more emphasis on digital literacy and te ao Māori and supporting teachers "to end harmful streaming and grouping practices".
Under maths, some content currently taught in later years will be brought forward into children's first three years of schooling - a key recommendation from an independent Royal Society panel which reported back to the Ministry last year.
An expert group will also consider whether the maths curriculum at levels 7 and 8 (years 12 and 13) is broad enough.
There will also be a recommended and minimum amount of time spent on maths each week - the Royal Society Te Apārangi report had called for an hour of maths every day.
Teachers will get more guidance on how to teach maths, and "incentives, training and improved career pathways" will be used to grow the maths teacher workforce.
There will also be specific attention given to learners who don't currently get a fair go, Tinetti said in an earlier statement.
"Taking an inclusive approach that recognises and values disabilities and the cultural, linguistic and neurodiversity of our learners will mean teachers can give all our kids the education they deserve."
Three associate ministers of education - Tinetti, Kelvin Davis and Aupito William Sio - launched the Literacy & Communication and Maths action plan, and a draft Hei Raukura mō te Mokopuna (Te Reo Matatini me te Pāngarau) action plan, at Māngere East this morning.
Davis said Hei Raukura Mō te Mokopuna aimed to strengthen children, teachers, whānau, hapū and iwi to maximise mokopuna success.
"We are releasing this as a draft as we want to refine this draft through consultation and wānanga."
New Zealand's performance in reading and maths has plunged over the past 20 years in both international and local surveys, a fact acknowledged earlier this year by the Ministry when it launched the strategy.
"The strategy's focus is about addressing equity and lifting achievement because the way things are is not working well for all learners and we are trying to make it work better."