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Best ESA math curriculum: how to choose the right type and document it by state rule

There is no one universally best ESA math curriculumacross all states. The right choice depends on your child’s grade and skill level, your state’s definition of allowable expenses, and how you buy and document it. This guide helps you choose and document math curriculum for ESA use in any state.

By The School Choice Index Editorial TeamPublished Last reviewed

Why math curriculum choice depends on your state

Most ESA programs allow curriculum and instructional materials as allowable expenses — but the definition of those categories varies by state. Some states define curriculum narrowly as a “complete course of study.” Others use broader language that includes textbooks, supplemental materials, and online programs. The best ESA math curriculum for you is the one that:

  1. Fits your child’s grade and skill level
  2. Falls clearly into an allowable expense category in your state
  3. Can be purchased correctly and documented if audited

Arizona: math is required, and documentation matters

Arizona’s ESA statute (§15-2402) requires families to provide instruction that includes at a minimum reading, grammar, mathematics, social studies, and science. Math is a required subject, not optional. Arizona’s ESA also allows curricula and supplementary materials as allowable expense categories. ADE approves reasonable education-related expenses.

For math purchases that are not obviously educational, families may need to show proof of a course of study. A complete math curriculum — teacher guide, student workbook, scope and sequence — is the most defensible purchase. A standalone drill app or supplemental workbook is easier to challenge in an audit.

ESA math curriculum types and their documentation fit

TypeESA fitExampleNotes
Complete grade-level math programHighestFull curriculum with teacher guide, student workbook, and assessment toolsEasiest to document as 'curriculum'; clearest scope and sequence
Placement-based math programHighPrograms with diagnostic tools that let students start at their own levelGood for students ahead or behind grade level; still verify state category fit
Supplemental math workbooks or drill programsMediumExtra practice workbooks, flashcard systems, skill drill programsMay qualify as instructional materials; harder to classify as full curriculum in strict-definition states
Online math subscriptions (IXL, Khan Academy)Varies by stateOnline practice platforms, video lessons, adaptive skills programsCheck whether your state allows online instructional services; subscription-only may need additional documentation

How to choose the best ESA math curriculum for your child

  1. Check your child’s current math level. Use a placement test if the curriculum offers one. Do not place a student in grade-level work that is too hard or too easy.
  2. Check your state’s expense categories. Does your state allow curriculum, supplemental materials, or only certain types?
  3. Choose a curriculum with a clear scope and sequence. This makes documentation easier and learning more consistent.
  4. Confirm the purchase process. Does your ESA require you to buy through a portal, use a specific payment method, or submit an itemized receipt?
  5. Collect documentation from day one. Start saving receipts, lesson logs, and student work samples as soon as the school year begins.

Documentation checklist for ESA math curriculum

  • Purchase receipt: product name, quantity, vendor, date, price
  • Scope and sequence or table of contents showing grade-level math topics
  • Student work samples: completed lessons, quizzes, tests
  • Lesson log or attendance record showing regular use
  • Portal purchase confirmation if your ESA uses a portal

Related guides

Frequently asked questions

Is math curriculum an allowable ESA expense?
In most states, math curriculum and instructional materials are allowable ESA expenses. But the exact rules depend on your state's ESA program — including how 'curriculum' is defined, whether supplemental materials are allowed, and how you must purchase and document the expense. Verify your state's current handbook before buying.
Does Arizona require ESA families to teach math?
Yes. Arizona Revised Statutes §15-2402 requires ESA families to provide education that includes at a minimum reading, grammar, mathematics, social studies, and science. Math is explicitly required. A complete math curriculum — with teacher guide, student workbook, and scope and sequence — is the most defensible ESA purchase for Arizona families.
What is the difference between ESA-allowable math curriculum and math supplements?
Math curriculum typically refers to a full course of study for a grade level — lesson-by-lesson instruction, teacher guide, student work, and assessments. Math supplements (drill apps, flashcards, skill workbooks) may be allowable as instructional materials in some states but are harder to classify as 'curriculum' in states with a stricter curriculum definition. Confirm your state's rules before relying on supplements alone.
What documentation should I keep for an ESA math curriculum purchase?
Keep the purchase receipt or invoice (product name, quantity, vendor, date, price), a description of the scope and sequence (grade level and what math topics are covered), a record of the publisher and edition if applicable, any student work samples (quizzes, completed lessons), and portal confirmation if your ESA requires purchases through a payment portal. Retain records for the period your state requires.
What math curriculum types work best for ESA families?
Three types work well: (1) complete grade-level math programs with daily lessons — easiest to document, most consistent; (2) placement-based math programs for students who are ahead or behind grade level; and (3) supplemental skill-building programs for extra practice in specific areas. The type depends on the student's needs and state rules.
Can I use ESA funds for an online math subscription like IXL or Khan Academy?
Possibly, depending on your state's ESA allowable expense categories. IXL and Khan Academy may qualify as instructional materials or online educational services in some states but not others. An online math subscription is easier to use with ESA funds when it covers a full scope and sequence — rather than only offering practice drills. Check your state's rules before subscribing.