Pear Deck is a tool that allows each student in a class to connect to an interactive presentation on any device, answer questions, etc. How does Pear Deck Work? - YouTube
We license Pear Deck in my school district with the primary aim of making teacher-driven presentations engaging, interactive, and formative in their design and delivery.
A LTI integration with Canvas would allow teachers to easily embed via RCE and/or create external tool module items or assignments leveraging their presentation decks from Pear Deck.
This integration would allow teachers to drive more and more synchronous (and asynchronous) learning experiences through Canvas, to the furtherance of our blended learning and Canvas implementation goals.
Google Classroom currently supports a Pear Deck LTI, just FYI.