HMH: K-12 Learning Company
Depends
Confidence: Medium
A district-scale curriculum suite: fits schools adopting full K-12 programs with assessment and teacher training bundled in.
Comparison
HMH: K-12 Learning Company vs Illustrative Mathematics K–12 Math
HMH: K-12 Learning Company and Illustrative Mathematics K–12 Math both land on Depends.
Illustrative Mathematics K–12 Math
Depends
Confidence: Medium
Districts and schools adopting a core K-12 math curriculum should shortlist IM: EdReports all-green ratings and free OER files lower the risk.
| Compare | HMH: K-12 Learning Company | Illustrative Mathematics K–12 Math |
|---|---|---|
| Verdict | Depends | Depends |
| Best for | District-wide curriculum adoptions | Districts adopting core K-12 math |
| Who it's not for | Homeschool families wanting cheap, simple materials | Homeschool parents wanting open-and-go lessons |
| Privacy | One unverified ransomware claim (Oct 2025) and no findable security page; proceed carefully with student data.⁷ | No known public vulnerabilities found in the sources reviewed. |
| Support quality | No support reviews found. | Certified facilitator network exists but costs extra |
| Public sentiment | User reviews are thin: one G2 reviewer loves it, homeschool reviewers like the structure, while employees rate the company 2.8/5.³ | District case studies report math proficiency gains after committed adoption, and homeschool communities flag IM as a rigorous public-school-style option. |
| Biggest gotcha | logged an HMH claim on 2025-10-03; confirm details before sending student data.⁷ | No published prices; Kendall Hunt print/digital access sold by quote, so budget surprises are likely15 |
Pick HMH: K-12 Learning Company when
- District-wide curriculum adoptions
- Schools pairing instruction with benchmark assessments
- Structured homeschoolers wanting school-like rigor
When HMH: K-12 Learning Company is not a fit
- Homeschool families wanting cheap, simple materials
- Single teachers without district procurement
- Buyers needing transparent self-serve pricing
- Anyone requiring a published security program
Pick Illustrative Mathematics K–12 Math when
- Districts adopting core K-12 math
- Schools wanting EdReports all-green curriculum
- Budget-conscious districts using free OER files
- Teachers committed to problem-based instruction
When Illustrative Mathematics K–12 Math is not a fit
- Homeschool parents wanting open-and-go lessons
- Tutors needing quick worksheets and drills
- Schools unwilling to fund professional learning
- Teachers seeking low-prep scripted lessons
Sources
- HMH homepagehmhco.comofficial
- Modulo homeschool reviewjoinmodulo.comreview
- G2 review snippetg2.comreview
- Glassdoor employee reviewsglassdoor.comreview
- Indeed employee reviewsindeed.comreview
- EdWeek on curriculum qualityedweek.orgnews
- Ransomware.live victim claimransomware.livesecurity
- HMH security page (not found)hmhco.comsecurity
- Illustrative Mathematics homepageillustrativemathematics.orgofficial
- IM K-12 Math Curriculum overviewillustrativemathematics.orgofficial
- IM 9-12 Math curriculum pageillustrativemathematics.orgofficial
news
- K-5 Math EdReports approval press releaseprnewswire.comnews
review
- Kendall Hunt IM distribution and walkthroughk12.kendallhunt.comofficial
- IM Professional Learningillustrativemathematics.orgofficial