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Hypothesis is a digital annotation LTI tool integrated in Bruin Learn. Instructors can use Hypothesis to create assignments for students to submit annotations on PDF documents, JSTOR articles, VitalSource texts, and YouTube videos. Hypothesis enables students to highlight and leave reflective comments on their reading assignments.

Primary Benefits

For Instructors and TAs

  • Enables instructors to develop annotation assignments on course reading material.
  • Instructors can create group Hypothesis assignments, based on Canvas (Bruin Learn) Course Groups, where the group collectively annotates and highlights PDF or website course material.
  • Hypothesis supports Canvas (Bruin Learn) Course Sections. Students can annotate and leave comments on assigned content. Instructors, TAs, and Admins will have access to all Sections and students will only have access to the Section(s) they belong to.
  • Instructors can grade Hypothesis reading assignments in the Canvas (Bruin Learn) Speedgrader.

For Students

  • Students are able to highlight, annotate, and leave reflective comments on course PDF readings and websites.
  • If Hypothesis is used as a group assignment, student groups can annotate on course readings together and benefit from reading the collective comments from their peers.
  • Students can save separate annotations just for themselves as study notes.


Hypothesis is paid for by the University. It is available to instructors and students at no cost. 


















LTI Scope

LTI Scope Definitions

  • Campuswide - LTI tools are available in any Bruin Learn course.
  • Sub-account - LTI tools have limited availability. These are often requested and funded by specific divisions, departments, or courses. These LTIs can be found by filtering via Status =  "Available at a Cost."
LTI Status

LTI Status Definitions

  • Requested - Requested tools are in the earliest phases for inclusion in Bruin Learn. This phase includes learning more about the functionality, supplier, costs, support options, existing campus or UC licensing agreements, etc.
  • In Review - The LTI tool is undergoing review by multiple stakeholders, including software advisory workgroups, security, accessibility, funding, data use and privacy, and UCLA Purchasing.
  • On Hold - The LTI tool process is on hiatus for any number of reasons, including: remediation of accessibility, security, data use and privacy concerns; identifying available funding sources; negotiations with the supplier; re-consideration of the original need, etc.
  • Approved - The LTI tool process has been approved and preparation for installation is underway. Prior to availability, post-approval work may include resolving technical integration issues, developing training, etc. 
  • Available - The LTI tool process is installed and available for general use in Bruin Learn.
  • Available at a cost - The LTI tool has been reviewed and approved and is available for purchase by units requiring the functionality the tool provides.
  • Contact ASUCLA Bookstore - Publisher-related LTI tools are obtained through the ASUCLA Bookstore.