Flower Dissection
Grade Level:
|
3rd
grade |
Subject:
|
Science
“Flower Dissection” |
Date:
|
9/23/08 |
Teacher: Brittany Burns |
Objective:
The objective of this
lesson is for students to locate and dissect the stamen, pistil, and petals
from a flower blossom. Students will identify, display, and label these three
parts of a flower onto a piece of white paper. The flower dissection will aid
students in observations and also with the process of distinguishing
different types of flowers. Students will observe and compare different
flower dissections. |
Education Standards Addressed:
Strand II, Standard I,
Benchmark I: Recognize that matter has different forms and properties. Strand II, Standards II,
Benchmark I: Know that living things have diverse forms, structures, functions,
and habitats. Strand I, Standard I,
Benchmark I: Use numerical data in describing and comparing objects, events,
and measurements. Strand III, Standard I,
Benchmark III: Observe that plants and animals have structures that serve
different purposes. |
Materials/ Resources: Flower
blooms, tweezers, white paper, clear tape, pencil, textbook, pictures of
various flowers,
Magnified glass. |
Prior Knowledge: Students will need basic
background knowledge of the anatomy of a flower. Students must know how to
count and use colors to distinguish between different types of flowers. They
must be able to follow simple instructions for a scientific investigation,
communicate observations, and answer questions. Students must understand that
in science it is often helpful to work with a team and sharing findings.
Students must also observe and describe the relative sizes and
characteristics of an object (bigger, smaller, brighter, louder, etc). They
also must be able to describe similarities and differences of flowers.
|
Prerequisite Skills: Students must know how to use
tweezers. They must be able to work and record data with other students. Students
need reading for content and information skills.
|
Guided Practice: Students will be shown how to use
tweezers to properly dissect different parts of a flower. They will be told
the different characteristics to look for in a flower which will be used to
differentiate their flowers.
|
Assessment: Students will be assessed by completion of dissection,
proper identification and labeling of flower parts, and comparison of
flowers. Completion of tasks and of self and group assessment of work. |
Wrap Up: Students will finish the lesson by sharing their flower dissections with other students. They will compare and contrast their different flower dissections. |
Independent Practice: Students
will independently read about flowers in their textbook, look at given
pictures of flowers, and observe their flower dissections.
|
Procedure:
1.) Each student or pair of students will be given a
flower bloom, tweezers, magnified glass, white sheet of paper, and clear tape.
2.) Have the students locate the stamen, pistil, and
petals of the flower.
3.) With tweezers and fingers students are to remove the
three flower part.
4.) The students should tape these to a white sheet of
paper and observe and label each part.
5.) Using textbook and flower pictures, students are to
determine what kind of flower they dissected.
6.) If enough flowers are available, the students may also
tape on the paper a complete flower for comparison.
7.) Students will then share and compare their different
flower dissections.