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Digital Interactive Notebook: Triangles | Distance Learning

Grade Levels
6th - 12th
Formats Included
  • PDF
  • Google Apps™
43 + Exit Ticket Template
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Includes Google Apps™
The Teacher-Author indicated this resource includes assets from Google Workspace (e.g. docs, slides, etc.).


This digital interactive notebook is for students learning how to determine if three side lengths or three angle measures determine a unique triangle, many triangles, or no triangle. There are over 40 slides focused on the Triangle Inequality Theorem, the Triangle Sum Theorem, SSS congruence, and AAA similarity.

The notebook starts with student friendly learning targets aligned with the Common Core State Standards (7.G.2). This is followed by a table of contents to the six sections of the notebook: vocabulary, notes, practices, challenges, resources, and assessment. There are hyperlinks on each page to easily navigate through the notebook.


The notes section includes 4 slides focused on the Triangle Inequality Theorem, the Triangle Sum Theorem, SSS congruence, and AAA similarity. There is also a page to add additional notes if needed.

The practices section includes 9 activities. There are discovery explorations, card sorts, and mystery pictures. Formats include drag and drop, matching, coloring, short answer, and extended response. There is also work space provided on many of the slides.

The challenges section includes 7 more activities that may be used as an enrichment opportunity for students. Many of these tasks incorporate writing and solving multi-step algebraic equations to determine unknown values within triangle side lengths and triangle angle measures.

The vocabulary section includes slides to record vocabulary terms and their definitions.

The resources section includes a slide to link videos and other resources.

The assessment section includes a slide to link warm ups, exit tickets, homework, quizzes, or tests. An exit ticket template is included as an example.

This notebook is editable so that you can customize to meet the needs of your students.

What Is Included

Questions and Feedback

Please feel free to reach out to me with any questions or with any feedback.

Thank you!

Total Pages
43 + Exit Ticket Template
Answer Key
Teaching Duration
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to see state-specific standards (only available in the US).
Use informal arguments to establish facts about the angle sum and exterior angle of triangles, about the angles created when parallel lines are cut by a transversal, and the angle-angle criterion for similarity of triangles. For example, arrange three copies of the same triangle so that the sum of the three angles appears to form a line, and give an argument in terms of transversals why this is so.
Draw (freehand, with ruler and protractor, and with technology) geometric shapes with given conditions. Focus on constructing triangles from three measures of angles or sides, noticing when the conditions determine a unique triangle, more than one triangle, or no triangle.


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