K12 math adoption calendar 2026–27: every state cycle publishers should track

TLDR: math adoption windows in 2026–27

The state math textbook adoption 2026–27 window is the busiest in over a decade. Seven states are running active or upcoming reviews; Texas alone is reviewing 529 programs, up from 142 in 2024.

This math curriculum adoption schedule covers all seven states: submission dates, review processes, and program requirements. For cross-subject context, see the state textbook adoption guide.

Seven states have active or upcoming K12 math adoptions in the 2026–27 window.

Priority states (majority of US math curriculum revenue): Texas, California, Florida, North Carolina.

Implementation cohorts: 2027 for California, North Carolina, Florida, Ohio, and Georgia; 2028 for Texas and Tennessee.

Earliest hard deadline was: March 27, 2026 (Texas final products).

Use the table below alongside the state adoption readiness checklist before each state’s cut-off.

Full math textbook adoption dates by state, including Ohio, Georgia, and Tennessee, appear in the calendar table further down.

Table of Content

1. Why the 2026–27 cycle matters more than usual
2. The 2026–27 math adoption calendar (by state)
3. What math programs need to have ready before each window closes
4. How to plan your submission calendar (12-Month View)
5. Common reasons math programs miss the window
6. How KITABOO helps math publishers stay adoption-ready
7. FAQs

State math adoption cycles rarely cluster this tightly. Three of the largest states are running simultaneous reviews in the 2026–27 window. State adoption cycles run six to seven years; missing the 2026–27 window typically delays state-list re-entry to 2032 or later. The Texas Instructional Materials Review and Approval (IMRA) process is reviewing 529 programs this cycle, up from 142 in 2024. State Board of Education review bandwidth is the constraint. HB 100 now blocks rejected materials from being adopted by Texas districts in the 2026–27 school year, closing the local-sale channel for rejected content.

Florida is running a multi-subject review under SB 7004, with a Most Favored Nations clause that affects pricing across the state contract. In the 2022 cycle, 41% of K12 math submissions were rejected. The 2026–27 review is expected to apply the same standards or stricter ones.

California’s Math Framework alignment cycle is the first state-board adoption under the revised framework, which means standards crosswalks built for the previous cycle no longer pass review.

For the full Texas cycle background, see Education Week’s analysis.

This table is the canonical reference. Save it, screenshot it, share it with your product team. The live version with countdown timers and state-by-state filters runs on the math publishers page.

Status: Active. K–12. 2028 implementation.

The Texas math adoption 2026 timeline runs through IMRA, with both Texas Education Agency reviewers and State Board of Education members evaluating submissions. The bid submission opened October 31, with final products due March 27, 2026. The SBOE vote is scheduled for November 16–20, 2026.

Districts receive $40 per student in funding for adopting state-approved materials. HB 100 prevents rejected materials from being adopted in Texas districts for the 2026–27 school year, making IMRA approval the only route to state-wide distribution. Rejected programs lose access to that funding for the duration of the implementation cycle.

Status: Active. K–8. 2027 implementation.

The California math adoption runs through the Instructional Quality Commission, which reviews submissions and recommends to the State Board of Education for the final vote. California Mathematics Framework alignment is the structural requirement. Programs that are aligned to the previous framework will need revisions to pass this cycle.

High school math is locally adopted in California. The state-level review covers K–8 only; 9–12 sales require district-by-district outreach.

Status: Active. K–12. 2027 implementation.

The Florida math adoption is governed by SB 7004 and includes a Most Favored Nations clause, which means the price you offer Florida sets a ceiling for what other states can be charged. Publishers that underprice for the Florida tender effectively cap their national contract value for the duration of the cycle. The approved list deadline runs on a ~128 day window from the call.

In the 2022 K12 math cycle, 41% of submissions were rejected, mostly on standards alignment and accessibility documentation. Reference: APM Research Lab: 10x Textbook Adoption.

Status: Active. K–12. 2027 implementation.

The bid submission window runs ~45 days from the state’s call. North Carolina’s review weights digital accessibility and LMS integration heavily, and the state has tightened its standards crosswalk requirements for the 2026–27 cycle.

Ohio: mathematics adoption

Status: Upcoming. K–12. 2027 implementation.

The state call is expected within ~60 days. Ohio publishes its full submission requirements at the call, but the structure follows prior cycles closely: standards crosswalk, accessibility documentation, sample chapters, and LMS integration evidence.

Status: Upcoming. K–12. 2027 implementation.

The review window opens in ~90 days. Georgia’s standards are state-specific, so generic Common Core alignment is not enough. The state lists its math standards on the Georgia Department of Education site, and the crosswalk needs to be built against those specifically.

Status: Upcoming. K–8. 2028 implementation.

The cycle begins in ~150 days. Tennessee runs a Textbook and Instructional Materials Quality Commission review followed by State Board approval. The 2028 implementation gives publishers more preparation time, but the bid window itself is short.

Six requirements, in priority order:

Native MathML rendering, not images. Equations rendered as PNGs fail accessibility review and break screen readers. MathML is required for state submissions in 2026–27.

A math keyboard for student formula input. Students must be able to enter equations natively in interactive items. Picture-based input fails most state rubrics.

Math text-to-speech plus WCAG 2.2 AA documentation. TTS must read math expressions correctly, not only the surrounding prose. WCAG 2.2 AA is the minimum standard; some states require 2.2 AAA. See our guide to ebooks accessibility for the underlying standards.

Live LMS integrations. Canvas, Schoology, and Google Classroom integrations must be live and demonstrable. LTI 1.3 and OneRoster are the standards reviewers expect. For background, see why LTI matters for ebooks and LMS integration.

State-specific standards crosswalk. TEKS for Texas, California Math Framework for California, BEST for Florida, NC Standard Course of Study for North Carolina. Common Core alignment is not a substitute.

VPAT or Accessibility Conformance Report. Required documentation for state procurement. Older VPATs (pre-WCAG 2.2) need to be re-issued before submission.

Work backward from the state’s final submission date. For Texas, that’s March 27, 2026.

T-12 months: Standards crosswalk audit per target state. Format readiness audit (MathML, accessibility, LMS).

T-9 months: MathML conversion of legacy equations. Accessibility validation against WCAG 2.2 AA. VPAT or ACR re-issued.

T-6 months: Bid submission for adoption cycles like Texas IMRA. Initial product samples to state reviewers.

T-3 months: Final product. Sample chapters formatted to state specification. Pricing finalized (factor in Florida MFN if applicable).

T-1 month: Demo readiness for state reviewer evaluation. LMS integrations tested live. VPAT current.

Most missed submissions trace back to a skipped T-12 audit. By T-6, MathML or accessibility gaps cannot be remediated in time.

Standards misalignment. Common Core crosswalk submitted for a state that requires TEKS or California Math Framework alignment.

Math content rendered as images. Equations stored as PNGs fail accessibility and reviewer markup tests.

Missing accessibility VPAT. No current VPAT or ACR on file at the time of submission.

LMS integration claimed but not tested. Reviewers ask for live demos. Documentation alone is not accepted in Texas, California, or Florida.

Submitting after the window closes. Texas final products were due March 27, 2026. Late submissions are not reviewed.

KITABOO is built for K12 publishers going into state adoptions, with math-specific tooling:

Native MathML rendering and a built-in math keyboard for student input

LTI 1.3, OneRoster, Clever, and ClassLink certified

WCAG 2.2 AA documented, with VPAT available on request

A live State Adoption Calendar widget on the math publishers page, refreshed quarterly

The McGraw-Hill case study on math workbooks in US schools documents how KITABOO handles state-adoption-grade math content at scale.

Check Your Digital Readiness Score before your next state submission window closes.