Details
| Type of Product: | Book Chapter |
| Average Rating: | 
based on 2 reviews |
| Publication Title: | Even More Brain-Powered Science: Teaching and Learning With Discrepant Events |
| Publication Date: | 3/23/2011 |
| Pages: | 59 |
| Grade Level: | Elementary School, Middle School, High School |
| See Also: | View all available chapters for this book
View the full version of this book
View the downloadable PDF version of this book
|
Description
Osmosis is the diffusion of water through a selectively permeable membrane. Given their size and availability, the hard exterior shell of eggs provide a convenient macro-scale model of the system-level phenomenon of osmosis. Once the shell of a fresh, uncooked chicken egg is removed in an acid bath, the egg’s intact, selectively permeable cell membrane is elastic enough to noticeably swell and shrink without bursting in response to changing osmotic pressure. In this activity, students will see how the “Naked” egg-solution system demonstrates how constancy and change define biological systems. This free selection includes the Table of Contents, Introduction, a Science Education Topics section, and the Index.
Additional Info
|
Science Discipline:
(mouse over for full classification)
|
Environmental change
Asking questions
Experimenting
Interpreting data
Observing
Predicting
Cell
Reproduction
|
| Intended User Role: | Elementary-Level Educator, High-School Educator, Middle-Level Educator, Teacher |
| Educational Issues: | Assessment of students, Classroom management, Curriculum, Educational research, Teacher content knowledge, Teacher preparation, Teaching strategies |
Technical
| Resource Format: | application/pdf |
| Size: | 161 KB |
| Requirements: | Requires Adobe Acrobat Reader |
National Standards Correlation
This resource has 7 correlations with the National Standards.
[HIDE CORRELATIONS]
- Life Science
- Reproduction and heredity
- In many species, including humans, females produce eggs and males produce sperm. (5-8)
- The cell
- In the development of multicellular organisms, the progeny from a single cell form an embryo in which the cells multiply and differentiate to form the many specialized cells, tissues and organs that comprise the final organism. (9-12)
- Every cell is surrounded by a membrane that separates it from the outside world. (9-12)
- Science as Inquiry
- Abilities necessary to do scientific inquiry
- Ask a question about objects, organisms, and events in the environment. (K-4)
- Plan and conduct a simple investigation. (K-4)
- Design and conduct a scientific investigation.
- Recognize and analyze alternative explanations and predictions.
Customer Reviews
|
Excellent discussion of a classic |
| |
Reviewed by: Jennifer Rahn (Delafield, WI) on June 20, 2011 |
| |
I wish I had this article before I did the original experiment with the kids. I understood what was going on with the egg, but the extensions are great, as well as the explanations. Our extensions were no where near as useful as those in the chapter, and the suggestions for teaching were absolutely awesome. Should be on every preservice teacher's bookshelf. |
|
Discrepant Events – Cognitive Learning via Discom |
| |
Reviewed by: Patricia (Arlington, VA) on April 23, 2011 |
| |
The author presents cogent reasons for educators using discrepant events as model science inquiry Even as it stands by itself, apart from the rest of the book, this chapter discusses great methods, offers insights into how science is learned, addresses misconceptions, outlines specific inquiry activities that may be incorporated at various levels from middle school through college and across content areas, presents rubric models, and correlates learning with cognitive readiness and science standards. The author is quite a wordsmith and his dialogue opens creative paths for the willing mind to follow and to absorb. The approach is warm, supportive, and encompasses all aspects of best practice. The thread highlighting communication and the importance of learners at all levels being encouraged to think about an observable phenomenon, to explain it and then to model an application as an extension of the thought processes creates dynamic energy within learning environments. This reader |
If you wish to add your review, click here.