Students LOVE the idea of "Frankenstein" until they open the book and 1) see that there are no pictures, and 2) read the first line, which ends with the word "forebodings." That word alone means to students: "This is going to be a hard book." You are a lucky teacher, if you have kids who see the irony.
"Frankenstein" is worth teaching for the vocabulary challenge alone*. (I always let students use an actual - not virtual - dictionary for any part of the assessments.) However, the best reason for students to read the novel is so they grow into adults who do NOT think "Frankenstein" is the name of the "creature."
Should you accept this mission, you may expect this Frankenstein Survival Kit to contain complete coverage of the novel from Study Guide Questions - separated into manageable reading sections (See Product Preview for breakdown) - to a 9-page Final Assessment in standardized test format to 4 Projects based on combining Gardner's Multiple Intelligences.
The "creature" just wanted love. Let your students love him. :)
*My Student-Driven Vocabulary Project works well for dense novels like "Frankenstein," "Heart of Darkness," The House of Mirth," etc.