2. • Identify the key milestones in the
development of the cell theory.
• Describe the contributions of
Robert Hooke, Anton van Leeuwenhoek,
Schleiden and Schwann, and Rudolph
Virchow to the cell theory.
• Explain the fundamental principles
of the cell theory.
Objectives
3. The teacher asks the students to
describe each level of biological
organization. The teacher also asks the
students what a cell is and how they are
relevant in biology.
Elicit
4. The teacher shows the students the
photos of different cells and asks them
to identify the organ to which these
cells belong.
Engage
5. The teacher provides a brief historical
overview of the development of the cell
theory, mentioning key scientists
involved. The teacher shows images of
each scientist along with the organism
related to their discovery. The teacher
asks students to discuss what these
scientists might have observed and what
led to the development of the cell
theory.
Explore
6. The teacher presents the key concepts
related to the historical development of
the cell theory. The teacher lets
students describe the contributions of
Robert Hooke, Anton van Leeuwenhoek,
Schleiden and Schwann, and Rudolph
Virchow to the cell theory.
Explain
7. In 1663, Robert Hooke found cells in
cork, coining the term "cells."
Early Discoveries
8. Ten years later, Anton van
Leeuwenhoek saw bacteria and protozoa
with his microscope.
Early Discoveries
10. - Cells are the basic units in living
things.
Cell Theory
11. - Cells are distinct entities and building
blocks.
Cell Theory
12. - Cells come from nonliving matter
(spontaneous generation), later proven
wrong.
Cell Theory
13. Rudolph Virchow (1858) clarified:
"Omnis cellula e cellula," meaning "All
cells come from cells."
Cell Theory
14. The teacher shows images of the
microscopes used by early scientists
and explains how they pave the way for
cell theory development. The teacher
discusses how these discoveries
transform our understanding of life at
the microscopic level.
Elaborate
15. The teacher administers a quiz or
discussion-based activity to check
students' comprehension of the key
milestones in the development of the
cell theory.
Evaluate
16. English (Language Arts): Encourage
students to write a brief summary of the
key milestones in the development of
the cell theory.
Assessment Measures
17. The teacher encourages students to
research and share examples of modern
technologies that allow us to study cells
in detail.
Extend
• Identify the key milestones in the development of the cell theory.
• Describe the contributions of Robert Hooke, Anton van Leeuwenhoek, Schleiden and Schwann, and Rudolph Virchow to the cell theory.
• Explain the fundamental principles of the cell theory.
The teacher asks the students to describe each level of biological organization. The teacher also asks the students what a cell is and how they are relevant in biology.
The teacher shows the students the photos of different cells and asks them to identify the organ to which these cells belong.
The teacher provides a brief historical overview of the development of the cell theory, mentioning key scientists involved. The teacher shows images of each scientist along with the organism related to their discovery. The teacher asks students to discuss what these scientists might have observed and what led to the development of the cell theory.
The teacher presents the key concepts related to the historical development of the cell theory. The teacher lets students describe the contributions of Robert Hooke, Anton van Leeuwenhoek, Schleiden and Schwann, and Rudolph Virchow to the cell theory.
Early Discoveries. In 1663, Robert Hooke found cells in cork, coining the term "cells."
Early Discoveries. Ten years later, Anton van Leeuwenhoek saw bacteria and protozoa with his microscope.
Cell Theory. Schleiden and Schwann's unified cell theory (1830s):
Cell Theory. - Cells are the basic units in living things.
Cell Theory. - Cells are distinct entities and building blocks.
Cell Theory. - Cells come from nonliving matter (spontaneous generation), later proven wrong.
Cell Theory. Rudolph Virchow (1858) clarified: "Omnis cellula e cellula," meaning "All cells come from cells."
The teacher shows images of the microscopes used by early scientists and explains how they pave the way for cell theory development. The teacher discusses how these discoveries transform our understanding of life at the microscopic level.
The teacher administers a quiz or discussion-based activity to check students' comprehension of the key milestones in the development of the cell theory.
English (Language Arts): Encourage students to write a brief summary of the key milestones in the development of the cell theory.
The teacher encourages students to research and share examples of modern technologies that allow us to study cells in detail.
