Negotiators worked until the early morning hours in a 12-hour bargaining session that still faces union and school board approval.
Columbus Education Association president John Coneglio called the process "a city-wide effort", that school board president Jennifer Adair says "recognizes the Board's commitment to improving student outcomes, [and] the essential work of the CEA members".
The union has asked striking members to stand down pending a mass meeting this weekend to present and vote on the proposal, which must also be ratified by the school board.
Online classes will continue this week, but regular in-person classes could start Monday morning.
Details of the conceptual agreement have not been released, but sticking points include guarantees that classroom conditions like heating and cooling are addressed, smaller class sizes, and additional art, music and PE teachers.
Earlier this month the sides still appeared miles apart on salary. An unfair bargaining allegation filed by the district revealed the board offered teacher a 3% salary increase in each of the next three school years plus a retention bonus. Union negotiators asked for an 8% raise for each of the next three years.
