Grading student work in a timely manner and providing relevant and frequent feedback are the most effective methods to help students stay motivated and productive.

Allow students opportunities to revise and resubmit their work so that their mastery can develop over time. This is especially important if the assignment is new, and there might be misunderstandings about your expectations.
Manage your grading load.
Offer constructive feedback, i.e., clear, relevant, and timely
Use Canvas tools to grade and provide feedback:

Canvas tool	Feedback	Grading
Announcements
Discussions
Inbox
Quizzes
Speedgrader
Gradebook

Announcements: provide feedback for the whole class about their accomplishments.

Discussions: provide feedback, suggestions, recommendations for the whole class or groups of students

Inbox: provide whole class, small group, and individual feedback

Quizzes: provide automatic feedback and grade many question types, giving you more time to grade essays or short answers.

Speedgrader: grade student submissions and provide timely feedback to your students.

Gradebook: manage grades and provide individual feedback to students