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                                                                    What is Think Central, Holt & Ed? 

The Holt McDougal Online Framework, or HMOF, is a comprehensive education platform specializing in the delivery of grade 6-12 content, allowing teachers and students to access digital materials associated with one or more HMH programs within the elementary and middle school grade levels.

Resource Center - Ed (K-12th)

* Troubleshooting HMH|

Into Reading is for K-5

   Into Literature is for 6-12

   Teacher Support


  Admin Support

Resource Center - Think Central
Resource Center

HOLT (Secondary)


Teacher Support

Admin Support



  • District Coverage?:
    * ThinkCentral (GoMath) for Elementary
    * Holt for 6th-8th Math, Science, Chemistry,
       Biology, French, Physics, World and US
    * ED:  Into Reading is for K-5,  Into Literature is       for 6-12th.


  • Required Install software?
    No. It is an online resource for students.

  • How to Troubleshoot HMH accounts at the Campus & District Level?
    Watch the webinar below


  • Are ThinkCentral, Holt & ED is integrated with Single Sign-On?  Yes. All students and teachers should log in through My harmony Portal at Then, click on either the Thinkcentral/HMH/Ed icon on the Dashboard.

  • Skyward Integration?  Yes.  All HMH products are synchronized with Skyward. Only Teachers with schedules in Skyward have access to HMH products.

  • Adding students manually?:  Teachers do not need to add or delete students. Make sure they are in the School database.

  • I do not see my products. You need to activate them. Check the left pane resources on how to activate the products.

  • Login Website stocked in one specific District that is not Harmony? Please delete cache browser cookies. Click here for the Chrome browser.

  • If a teacher/student has problems with HMH apps, before reporting the problem or creating a help desk ticket, make sure the following  items:

    • 1.   The teacher has a schedule in Skyward and has assigned sections and students to the schedule.

    • 2.   Teacher and students must have a Skyward ID. If not, contact your Registrar.

    • 3. Teachers and students must have Harmony's email address marked as School

    • 4. Teachers login through the new portal

    • 5.  Admins/Coaches must log with the campus admin Credentials, using the website, not through My Harmony Portal.

  • More help? Please click here

  • Contact the Support team at 1 (800) 323-9239

    Have anymore Questions? Please create a Help Desk ticket here choosing the HMH category.

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