Comparative Anatomy (2 of 8): Skeletal Form & Function

Lesson Title: Comparative Anatomy (2 of 8): Skeletal Form & Function
Academic Standards: HS-LS1-2
Content Creator: Mrs. Wendy Martin
Level: High School
Duration: 30-40 min
  /  Comparative Anatomy (2 of 8): Skeletal Form & Function

Objectives

  • Students will understand the overall function of a skeleton.
  • Students will understand the 3 types of skeletons seen in the animal kingdom.
  • Students will observe the type of skeleton seen in the cat, pig, dogfish, starfish, and squid.
  • Students will handle and manipulate the specimens as they observe the different skeletal structures.
  • Students will relate skeleton to lifestyle.

Description

Skeletal systems are frameworks that support animal bodies, protect internal organs, and allow for movement. In this comparative anatomy lesson, students will learn about the three types of skeletons seen in the animal kingdom. They will then explore the difference between the exoskeleton and endoskeleton by comparing five animal specimens: the squid, the starfish, the dogfish, the pig, and the cat. Discussion of how the skeleton relates to that animal’s lifestyle will be included. In addition, students will handle and manipulate the discussed specimens.

Sequence

  1. Describe the function of a skeleton in general.
  2. Show video on skeletons.
  3. Describe the difference between a hydrostatic skeleton, exoskeleton, and endoskeleton.
  4. Show video of crab molting.
  5. Discuss squid skeleton.
  6. Give students one to manipulate.
  7. Describe starfish skeleton.
  8. Show Starfish video clip.
  9. Give students one to manipulate.
  10. Describe dogfish skeleton.
  11. Give students one to manipulate.
  12. Describe pig skeleton.
  13. Give students one to manipulate.
  14. Describe cat skeleton.
  15. Give students one to manipulate.
  16. Administer skeleton quiz.
  17. Show 360* video on experience on osteoporosis.

Demonstratives & Media

Classroom Space
CS003
Science Lab
Virtual Field Trips & Lab Demonstrations
Instructional Videos

Suggested Ancillary Support

Skeletal system 360 video..     https://www.youtube.com/watch?v=1XLn6ONjRJs&feature=youtu.be Sea Star Skeleton Shape of Life..   https://www.youtube.com/watch?v=K2G7L5hcEt8 Crab Molting Shape of Life..    https://www.shapeoflife.org/video/arthropods-blue-crab-molting Skeleton Quiz....  https://www.youtube.com/watch?v=RdxMjSvKpDU Osteoporosis 360....   https://www.youtube.com/watch?v=Cqa-B-dbfo8 Skeletal Formation....  https://www.youtube.com/watch?v=fh31pQMB218            

Notes