Step 1 · Diagnose
Mathematical Diagnostic Assessment (MDA)
Skill-level assessment for placement, intervention planning, and progress monitoring.
- Precise placement
- Intervention readiness
Assessment • Instruction • Intervention
See what each student needs.Know what to teach next.
ACD Math connects diagnostic assessment, conceptual instruction, targeted intervention, and progress monitoring—so every learner gets a clear path forward.
Diagnostic insightTargeted learning pathsConnected progress reporting
ACD Math DashboardConnected student progress
Illustrative student profileConcept mastery82%
Fractions and ratios ready for the next sequence.
24Skills assessed
6Students needing support
Number sense86%
Fractions64%
Operations72%
Unified learner profileDiagnostics feed the same student profile used by teachers and families.
Recommended next stepsSuggested skills update after every lesson and checkpoint.
Connected progress reportingProgress stays visible across interventions and centre workflows.
Products
One connected math ecosystem
Four connected steps from finding a gap to closing it. Start with the product your program needs today and add the rest when you are ready.
Product descriptions reflect the current development build and planned connected workflow. Availability can vary by configuration; no learning outcome is guaranteed.
Step 2 · Teach
ACD Math Lab
Interactive math models, ACD Concept Lab, ACD Mistake Lab and ACD Strategy Lab, and live class sessions.
- Interactive math models
- Live class sessions
Step 3 · Practice
ACD Practice
Self-paced lessons, question sets, and adaptive practice that turn every response into the next best step.
- Recommended lessons
- Adaptive sequencing
Step 4 · Intervene
ACD Intervention
Intervention Library lesson series and tracked plans that help students close diagnosed gaps.
- Scripted lessons with teacher guides
- Diagnostic-led plans
Features
Built for progress, not just practice
ACD Math connects assessment, instruction, and reporting so every stakeholder can see what to do next.
Precision assessment
Start from what the student actually understands
ACD Math turns diagnostics into usable placement signals for teachers, tutors, and families.
Skill-level visibility replaces guesswork before instruction begins.
Connected profile
One learning record across every intervention touchpoint
Practice, lessons, reporting, and recommendations all update the same student profile.
Teams stop stitching together progress from disconnected tools.
Actionable insight
Reporting that shows what to do next
Families and educators see growth, unfinished skills, and recommended next steps in one view.
Readable signals matter more than dashboards full of noise.
Intervention workflow
Built for real remediation and acceleration
The platform supports placement, reteach, independent practice, and progress checks as one loop.
That makes ACD Math fit schools, centers, and home support programs.
How it works
A connected loop for math learning and progress evidence
Assessment, instruction, practice, and reporting stay connected so students do not lose momentum between steps.
01
Assessment
Students begin with a skill-aware diagnostic that identifies strengths, unfinished learning, and priority gaps.
Clear baseline02
Placement
ACD Math maps the learner into the right starting domain, topic, and instructional sequence.
Right entry point03
Learning
Teachers and students use conceptual lessons, visuals, and guided instruction tied to the same profile.
Concept building04
Practice
Adaptive practice reinforces what was taught and keeps the next activity aligned to student need.
Targeted repetition05
Progress
Weekly checkpoints show whether mastery is moving, stalled, or ready for advancement.
Visible growth06
Reporting
Families, teachers, and centers get shareable snapshots that make next-step planning easier.
Shared accountabilityIllustrative scenarios
Designed around the people closest to student learning
ACD Math is designed for teachers, families, schools, and learning centers that need one shared view of progress.
Faster reteach planning
I can see the exact prerequisite skill that is blocking a student before I plan the reteach lesson.
Clarity at home
For the first time, I understand what my child has learned and what still needs support without guessing from homework.
Aligned interventions
The platform makes placement and progress conversations more consistent across classrooms and support staff.
Shared student record
Our tutors, families, and directors all work from the same learning picture, which changes how quickly we can respond.
Pricing
Plans for families, teachers and schools
At the heart of every plan is ACD Practice: adaptive practice with 38 question types, most of them hands-on, run on the MDA every student takes, $1 a month. Add ACD Math Lab for teaching live and MathBox for hands-on work. Families and teachers pay by card, monthly or yearly; schools and learning centers by card up to 5 teachers and 100 students; districts are quoted.
Family
$8.99per child / monthor $79 a year (save $28.88)
Parents supporting children at home: each child's own Math Lab screen.
Per child · Card, monthly or yearly
- ACD Practice
- MDA
- Models & Tools
- ACD Concept Lab
- MathBox: an individual box for your child's grade
Teacher
$1.75per student / monthor $20 a year
One teacher and their own class.
Practice per student, up to 150; ACD Math Lab per teacher · Card, monthly or yearly · 14 days free
- ACD Practice
- MDA
- Models & Tools
- ACD Concept Lab
- ACD Mistake Lab
- ACD Strategy Lab
- Intervention Library, or any of its 16 programs on its own
School
$28per student / year
Classrooms and intervention teams.
Practice per student; ACD Math Lab per teacher · Card, yearly, up to 5 teachers and 100 students; a quote beyond
- ACD Practice
- MDA
- Models & Tools
- ACD Concept Lab
- ACD Mistake Lab
- ACD Strategy Lab
- Intervention Library, or any of its 16 programs on its own
Learning Center
$28per student / year
Tutoring centers and their staff.
Practice per student; ACD Math Lab per teacher · Card, yearly, up to 5 teachers and 100 students; a quote beyond
- ACD Practice
- MDA
- Models & Tools
- ACD Concept Lab
- ACD Mistake Lab
- ACD Strategy Lab
- Intervention Library, or any of its 16 programs on its own
District
Quotepriced for your district
District offices with several schools.
Per student, in the quote · A quote, yearly
- ACD Practice
- MDA
- Models & Tools
- ACD Concept Lab
- ACD Mistake Lab
- ACD Strategy Lab
- Intervention Library
MathBox
$45and up, paid once
Manipulatives and their guide books for each grade, matched to the models in ACD Math Lab.
- Individual: $45
- Small group: $199
- Classroom: $449
- Refill pack: $39
- Up to 20 boxes on a card; shipped within the United States
Comparison
Who each plan is for, how it is bought and what it can include.
PlanFamilyTeacherSchoolLearning CenterDistrict
Who it is forParents supporting children at home: each child's own Math Lab screen.One teacher and their own class.Classrooms and intervention teams.Tutoring centers and their staff.District offices with several schools.
How you payCard, monthly or yearlyCard, monthly or yearlyCard, yearly, up to 5 teachers and 100 students; a quote beyondCard, yearly, up to 5 teachers and 100 students; a quote beyondA quote, yearly
Starts at$79 per child / year or $79 a year (save $28.88)$20 per student / year or $20 a year$28 per student / year$28 per student / yearPriced in a quote
PricedPer childPractice per student, up to 150; ACD Math Lab per teacherPractice per student; ACD Math Lab per teacherPractice per student; ACD Math Lab per teacherPer student, in the quote
What you can pickACD Practice, MDA, Models & Tools, ACD Concept Lab, MathBox: an individual box for your child's gradeACD Practice, MDA, Models & Tools, ACD Concept Lab, ACD Mistake Lab, ACD Strategy Lab, Intervention Library, or any of its 16 programs on its ownACD Practice, MDA, Models & Tools, ACD Concept Lab, ACD Mistake Lab, ACD Strategy Lab, Intervention Library, or any of its 16 programs on its ownACD Practice, MDA, Models & Tools, ACD Concept Lab, ACD Mistake Lab, ACD Strategy Lab, Intervention Library, or any of its 16 programs on its ownACD Practice, MDA, Models & Tools, ACD Concept Lab, ACD Mistake Lab, ACD Strategy Lab, Intervention Library
Free trialNo trial14 days freeNo trialNo trialNo trial
Need a rollout plan first?
We can map the right starting product, pilot scope, and reporting workflow for your program.
FAQ
Questions before you start
Which grades does the platform cover?
Pre-K through Grade 8. The curriculum is held as a connected map rather than a list of topics: every skill is linked to the skills it depends on, which is what lets the platform trace a gap down to the foundation it rests on instead of re-teaching the grade a student is sitting in.
Which standards is the content aligned to?
Common Core State Standards for Mathematics (2010), the California Common Core (2013), the California Preschool/Transitional Kindergarten Learning Foundations, and Florida B.E.S.T.
How is the diagnostic different from a test?
A test reports a score. The diagnostic asks why. Every question carries a role -- it measures a target skill, probes the prerequisite beneath it, or checks for a specific misconception -- so a wrong answer can be traced to a cause rather than counted.
What happens when a student answers incorrectly?
The next question is chosen, not simply the next one in a list. It may probe the prerequisite skill while the student is still in that piece of thinking, or ask the same skill in a different representation -- a number line instead of symbols -- which separates a difficulty with the representation from a genuine gap in the skill.
Does the platform decide interventions on its own?
No. Prerequisite and misconception gaps always route to teacher review before any intervention is planned. The platform proposes, records its reasoning, and tracks what happens; a person decides.
How do a student's accommodations reach the platform?
They arrive from the school's own records and can be adjusted by the school. They apply down to the level of individual questions: an item that requires an accommodation a student does not have is never served to that student.
Can questions be read aloud?
Yes, with word-level highlighting and pronunciation rules written for Pre-K-8 mathematics, so a fraction or an expression is read the way a teacher would say it.
Is the platform accessible?
We are working toward WCAG 2.2 Level AA. Our Accessibility Statement is published in the footer of every page and says plainly what is met, what is partially met, and what is not yet met.
Who can see a student's data?
Access is governed by named roles and specific permissions, scoped to the organization the student belongs to. A teacher sees their own classes, a school administrator sees their school, and no role reaches across organizations. How we handle personal information is set out in our Privacy Policy.
How is pricing determined?
Pricing depends on the implementation model, number of learners, stakeholder workflows, and whether the team is starting with one product or the full platform.
Can a school or center start with one part of the platform?
Yes. Teams can begin with a focused rollout such as diagnostics or intervention support and expand into additional products over time.
Do families, schools, and centers use the same platform?
Yes. The core learning model is shared, while the workflows and reporting surfaces adapt to each audience.
ACD Math Platform
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