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Units of Practice

Notes on Cell Organelles

Lesson Details


Subject: Science
Learning Level: Middle School
Author(s): Michelle Gex, Betty Howell, Lisa Rizzuto O'Keefe
Submitted by:

Abstract

In this activity, students take notes (using the two-column notetaking format) on the essential cell organelles. The illustrated notes focus on the structure and function of these organelles. The notes are presented using a Power Point presentation (attached). The organelles discussed are: cell membrane, nucleus, cytoplasm, mitochondria, vacuole, lysosome, endoplasmic reticulum, ribosomes, cell wall and chloroplast.

Lesson fundamental understandings:
Essential Questions:

ENDURING UNDERSTANDING:
"Structure" is how something is built. "Function" is how something works. How something is built affects how it works. Likewise, how something works affects how it is built. This is true with all living things.
ESSENTIAL QUESTIONS:
- How would the function of a cell change if the structure was altered?
- What would happen to the structure of a cell if it began to function differently?
KNOWLEDGE AND SKILLS:
The events leading up to the discovery of cells is worth being familiar with. The components of the Cell Theory are important to know. The fact that the structure and function of living things is forever linked is an enduring understanding.

Standards

National Standards

CONTENT STANDARD C: STRUCTURE AND FUNCTION: Living systems at all levels of organization demonstrate the complementary nature of structure and function. Important levels of organization for structure and function include cells, organs, tissues, organ systems, whole organisms and ecosystems. Cells carry on the many functions needed to sustain life. They grow and divide, thereby producing more cells. This requires that they take in nutrients, which they use to provide energy for the work that cells do and to make the materials that a cell or an organism needs. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ TECHNOLOGY FOUNDATION STANDARDS FOR STUDENTS -- Social, ethical and human issues: Students develop positive attitudes toward technology uses that support lifelong learning, collaboration, personal pursuits and productivity. Technology productivity tools: Students use technology tools to enhance learning, increase productivity and promote creativity. INFORMATION LITERACY STANDARDS: The student who contributes positively to the learning community and to society is information literate and participates effectively in groups to pursue and generate information.

State Standards

CONTENT STANDARD 6.0 -- STRUCTURE AND FUNCTION: Students understand that all life forms, at all levels of an organism, use specialized structures and similar processes to meet life's needs. 6.5.2 -- STRUCTURE AND FUNCTION: Investigate, compare and contrast the different structures of organisms that serve different functions for growth, reproduction and survival. 6.8.3 -- STRUCTURE AND FUNCTION: Investigate and describe how cells grow, divide and take in nutrients, which they use to provide energy for cellular function. 6.8.5 -- STRUCTURE AND FUNCTION: Investigate and describe how plants have specialized structures and systems for a variety of functions.


Lesson

Prerequisite Skills

Prior to beginning this lesson, students should be familiar with the following concepts:    - two-column note taking    - components of the Cell Theory    - proper use of spelling and grammar

Teacher Information/Situations/Setting/Time

The students will work independantly taking notes on the cell organelle's structure and function.

The teacher will lecture, answer question and facilitate discussion while running a Power Point presentation on the topic. At various points during the lesson, the teacher will show the students information found on several different web sites.

The notes will be taken over a period of two days.

Assessment

FORMATIVE ASSESSMENT:
Continual observation and questioning throughout this lesson will provide some means of assessment. After successfully completing this activity, students are encouraged to move on to the next activity. The mastery of each activity provides both the teacher and the student with an opportunity to assess their current progress. Daily learning logs also allow the teacher to determine the level of the students' understanding. Though this activity will be assessed, it will not be given a grade.

SUMMATIVE ASSESSMENT:
Summative assessment will occur in the journaling activity, which will be completed at the end of the unit.

Student Activity/Tasks

Students take notes (using the two-column notetaking format) on the major organelles located within a cell. The notes are presented on a Power Point presentation. The notes include illustrations as well as important information regarding the structure and function of each organelle.

Enrichment/Alternate Activity:

Special needs students may benefit from completing a worksheet where they enter a portion of the notes and indicate the organelles on a previously illustrated model, as opposed to being responsible for completing the full volume of the notes. Students may benefit from an introductory activity that has students look at the structure and function of common items. They can be presented with a list of objects (spoon, comb, rocking chair, etc.) and determine how their functions inspired the development of their structure.

Cross-Curricular:

Technology Requirements/Tools/Materials

Since this activity involves a Power Point presentation, a computer is an obvious requirement. Teachers also need to determine how this presentation will be accessed by the students. In a computer lab, students would be able to advance through the notes at their own pace. In a whole class environment, teachers would need to use an LCD projector or a television and the required connecting cables.

Acknowledgements:


Additional Resources

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