Encourage students to experience the many textures found inside and outside the squid’s body.
You may want to explore this aspect through sensory activities, written descriptions, poetry, and/or artwork. To help maintain the freshness of the specimen, cover it with a wet paper towel as you work so it does not dry out so quickly.įinally, this lesson is a tactile experience. Tissue shrinks and organs become misshapen quickly. Please advise students that they may not see everything shown in the enclosed diagram. Individual squid vary internally, and their relative maturity determines which organs are formed well enough to be seen clearly, and which have lost (or have yet to gain) their shape and coloration. Squid may have tentacles or arms missing. If the entire dissection cannot be completed in one day, do the external activities while the specimens are still partly frozen, and the internal activities the next day after squid are thawed. Keep all squid frozen until the morning before dissection. Teaching Notes: Squid specimens tend to deteriorate rapidly. For areas that have them, you can also go to the local fish market or oriental food stores, or you can deal directly with fishermen. *Look for squid at the local supermarket in the seafood and frozen foods sections.
The skills necessary to do all steps in the dissection are within the normal ability range of middle school students. They followed procedures and understood concepts well. These lessons were tested with middle school students ages 11 to 13. Be certain students understand the vocabulary of dissection prior to beginning the lab. The descriptions use complex dissection terminology. Teachers should try the lessons, considering which parts are most appropriate for their students and curriculum. Teaching Notes: This lab is a very thorough dissection of a squid and can be adapted to different grade levels. Critically examine the functions of several squid features and organs.Understand and use basic dissection techniques and terms.Locate and identify major external and internal features and organs of a squid.As a result of this lesson, students will be able to:
0 kommentar(er)
