Cell Structure - Bemidji State University
[Pages:12]Cell Structure
7th Grade Science 50 Minute Periods
Bjorn Horgen
Grade 7: 50 Minute Periods
Outline for Cells: Day I : Introduction to Animal Cells Day 2: Introduction to Plant Cells Day 3: Cell Movie Day 4: Lab on Eggs Day 5: Project Introduction Day 6: Project Work Day Day 7 : Test
Science Standards: Strand : IV Life Science Sub-Strand: A. Cells Standard: The student will understand that all organisms are composed of cells that carry on the many functions needed to sustain life. Benchmarks: 1. The student will know that cells are the fundamental units of life. 2. The student will distinguish between single-cellular and multi-cellular organisms. 3. The student will distinguish between plant and animal cells.
Day 1: Introduction to Plant Cells
Objectives:
Students will be able to correctly identify key parts on a cell.
Students will be able to correctly identify pl ant cells.
Students will be able to correctl y identify animal cells.
Materials :
? Computer ? Overhead ? Plant cell pictures ? Animal cell pictures ? Diagram of cells labeled
Process:
Have students take notes on PowerPoint presentation of animal cells. Show diagrams of
cells on PowerPoint and ask students to identify the pictures at end of class.
Independent Work:
There will be no independent work required .
Day 2: Introduction to Animal Cells
Objectives:
Students will be able to correctly identify key parts on a cell.
Students will be able to correctly identify plant cells.
Students will be able to correctly identify animal cells.
Materials:
? Computer ? Overhead ? Plant cell pictures ? Animal cell pictures ? Diagram of cells labeled
? Worksheet
Process:
Have students take notes on PowerPoint presentation of animal cells. Show diagrams of
cells on PowerPoint and ask students to identify the pictures at end of class.
Independent Work:
There will be a cell diagram work sheet to be completed by next class period.
Cell Worksheet
Name:- - - - -- - - -
Date: - - - - -
Labeling: Label each of the following correctly
J.
_
1'_ _-
3.
_
10
_
1.
3.
_
1.
_
Day 3: Movie
Objectives:
Students will complete one page of notes from the movie.
Students will be able to correctly identify cells key parts.
Materials :
? TV ? Cell structure movie ? VCR
Process:
Let students watch movie and have them tum in one page of notes after movie is
completed .
Independent Work:
There will be no independent work.
Day 4: Egg Lab
Objectives:
Students will complete the egg worksheet with at least 60% accuracy.
Materials:
? Eggs ? Petri Dishes ? Rulers ? Worksheet
Process:
First divide students into groups of 3 and have them crack a large egg into there Petri
dish. Let the students complete there worksheet with questions relating to the egg they
have cracked open.
Independent Work:
Students will need to complete the worksheet assigned by the end of the class period.
Egg Lab Worksheet Name:- - - - - - - -
Date:- - - - - - - - - -
What is the diameter of the egg? Guess: Measurem ent:
How many cells are in this egg? Wh at is the largest single cell? What animal produces the largest single cell?
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