Bryant’s curriculum, titled “Mystery of the Madagascar Hissing Cockroach,” is designed for sixth-, seventh-, and eighth-grade students, with seven to eight unique labs around hissing cockroaches in each grade. Leave a Reply Cancel reply This site uses Akismet to reduce spam. Learn how your comment data is processed. Search Search for... Search Get New Posts in your Inbox! Enter your email address to subscribe to Entomology Today. You'll receive notifications of new posts by email. Email Address Get Certified!