- Overview:
Includes a brief description of the
overall lesson.
Grade Level Recommendation based on correlation to
California Science Content Standards Grades K-6
- Focus
Defines the focus subject of the section.
States the goals and outcomes of the section.
- Site:
Recommends locations where the activity
can be done.
- Time Format :
Contains specific time recommendations.
- Materials:
Lists the materials contained in the toolbox
that will be relevant to the activities. It will also include
any additional materials necessary.
- Advanced Preparation:
Covers any additional pre-activity steps
that need to be made.
- Activity:
Describes the methods involved in delivering
the activity.
- Wrap-Up/Evaluation:
Brings a close to the lesson section with
questions for the students and possible writing or drawing
assignments for journal reflections.
- Going Further:
Provides suggestions, www links, and comments
for further exploration of the activity topic.
Journals: Students will construct
their own journal in Section 1(Recognize). They will
use these journals throughout the program for note taking,
sketches, activities, writing assignments, etc.
Suggested Implementation
& Timeline
The following is a
suggested implementation and timeline path for the Return of
the Natives curriculum. The organization of this path
is based on the overall concept that the restoration and protection
of ecosystems is dependent on the responsible actions of people
to help preserve native plants and eliminate invasive invasive
weeds. This overall concept is achieved through the implementation
of the four section concepts outlined previously. The
timeline provides a structure for scheduling and most importantly
measuring the overall concept, section concept, and individual
learning outcomes of each activity.
Lesson #1 (Pre-Assessment)
Time: 1 session
(1-1.5 hours)
Lesson #1 consists
of a brief introduction regarding the coming activities. The
students are given an outcomes based pre-assessment exam that
will be administered again at the close of the curriculum.
Students will be asked to write or draw descriptions of the
concepts that will be explored over the course of the Return
of the Natives activities.
Section 1: Recognizing
Native Plants & Weeds In the Local Community
Lesson #2 (Slide
Show Presentation)
Time: 1 session
(1 hour)
This lesson provides
background information essential to future lessons. This lesson
will introduce the terms and concepts that will be explored
further in Lesson #3. This slide show will define a
healthy ecosystem and itâs importance to people. It
also gives examples of the inhabitants that compose local
ecosystems. It will also define and give examples of
native plant and invasive weeds.
Lastly, it
will explore and provide examples of the following sub-concepts:
· Preservation
of native plants is crucial to maintaining the health of an
ecosystem.
· Invasive
weeds decrease the health of an ecosystem and can lead to
environmental damage.
Note: The slide show presentation is available on the CD version
of this curriculum and its images are representative of the
ecosystems of coastal California. Although, the script contains
several key concepts and terms that could be adapted to a
specific ecosystem. For information on aquiring the CD version
of this curriculum email: jon_detka@monterey.edu
Lesson #3 (Outdoor
Investigation)
Time: 1 session
(2-3 hours)
Lesson #3 will consist
of a possible field trip to the BLM Public Lands at the Ft.
Ord Reserve or outdoors investigation near the school location.
Over the course of the outdoor experience the activities will
emphasize the following concepts.
1. Identifying native
plants and invasive weeds is the first step towards preventing
the spread of weeds.
2. Native plants
are valuable to an ecosystem.
3. Weeds can damage
an ecosystem.
It
is recommended that the following activities be implemented
in the suggested order during the outdoor investigation.
Choose from the
following activities:
· Native &
Non-Native? Scavenger Hunt
· Designing
and Using Dichotomous Keys
After conducting
either of these activities it is also possible to implement
the ÎCollecting & Pressing Plantsâ activity.
Implementation of
either the ÎNative & Non-Native - Scavenger Huntâ or ÎDesigning
and Using Dichotomous Keysâ and ÎCollecting & Pressing
Plantsâ will complete the following activity learning outcome
objectives:
Native & Non-Native?
Scavenger Hunt
1. Students will
sort and compare native and non-native plants using at least
three different criteria
2. Students will
be able to define the term ecosystem.
3. Students will
learn to recognize at least four different plants from their
surrounding ecosystems.
4. Students will
brainstorm four characteristics of a "weedy" species.
Designing and Using
Dichotomous Keys
1. Students will
learn the basic skills used in constructing a dichotomous
key.
2. Students will
be able to describe and draw the characteristics of some common
native plants of Monterey and the most unwanted non-native
invasive weeds.
3. Students will
be able to define basic plant terminology.
Collecting &
Pressing Plants
1. Students will
demonstrate and describe the basic skills and reasons for
collecting and pressing plants.
2. Students will
be able to write or tell about the three most important "Plant
Collecting Rules"
3. Students will
design and make herbarium labels for their plants
4. Students will
use the pressings to form a herbarium or mount them in their
Return of the Natives journals.
Lesson #4 (Investigation)
Time: (1-1.5 hours)
In this lesson students
will engage in an activity that will investigate how weeds
out-compete other plants for space by crowding them out.
Students will complete
the following activity learning outcomes:
Population Explosion
of Weeds Relay
1. Students will
be able to illustrate through a graph, writing, and drawing
how weeds out-compete other plants for space by crowding them
out.
2. Students will
be able to define the 4 'weedy' characteristics responsible
for the population explosion of weeds.
3. Students will
be able to illustrate the role of herbivores in native plant
population.
Graphing the Population
Explosion of Weeds (Optional Activity instead of relay activity)
1. Students will
be able to outline the path of the seed cycle.
2. Students will
list the natural and human barriers to the population explosion
of a species.
3. Students will
calculate the explosive rate of reproduction of Yellowstar
Thistle over a three year period. (Note: Less experienced
students could be given the data and asked to graph the corresponding
points.)
4. Students will
graph the growth occurring within the seed bank and plant
population of the Yellowstar Thistle plant over a three-year
period.
Section 2: Removing
Weeds & Studying Native Plants
Lesson #5 (Outdoor
Investigation)
Time: 1 session
(1-1.5 hours)
Pulling Together
In this lesson students
will participate in the ÎPulling Together Activityâ and use
manual removal strategies to emphasize the four things they
can do to stop the spread of invasive weeds. (Prevent, Pull,
Plant Natives, Educate Others)
After conducting
the weed pull students will also the brainstorm the five methods
of removing and controlling the spread of invasive weeds.
(Manual, Mechanical, Biological, Cultural, and Chemical)
Students will complete
the activity learning outcome by retelling the story of the
Bradley sisters' method of weed removal by acting in a play,
making drawings, or creating a storybook/poster of the steps
they used to remove the weeds.
(Optional Activity)
Weedy Socks & Tread
Time: 1 session
with follow-ups (1-1.5 hrs.)
This classic activity
can be used to study how animals, recreation, and roadway
transportation spread weed seeds. Students conduct a simulated
sock or wheel seed collection in a 'weedy' area. These
collected seeds will be planted in sterilized 'weed free'
soil and the germinating plants will be identified over a
3-week period. Students describe the ways that plant seeds
are spread naturally. (Wind, Water, Wildlife)
Students describe
with writing and drawing the major ways humans can spread
weeds (i.e. Vehicles, Recreation, Animals, Collecting). Students
brainstorm ways of preventing the transport of weed seeds
by people. Students will observe and measure the growth
of weeds in their weed sock or wheel plantings and answer
the question: "Why are almost all the seeds that germinate
from the socks & tread weeds?" This activity could
replace the ÎPulling Together Activityâ but it is recommended
that it be conducted as an additional investigation conducted
by the educator.
Restoring The Balance
Lesson #6 (Outdoor
Investigation)
Time: 1 session (2
hours)
Hula Hoop Study
In this lesson students
will conduct the ÎHula Hoop Studyâ activity. This activity
will provide the opportunity for students to learn about the
methods scientists use to collect data regarding the distribution,
population, and health of native and invasive plants.
Students will use this method to develop additional inquiry
questions about what could be investigated using this method
of observation. Later, this data can be organized and displayed
as community educational pieces. Initial data collection for
this activity should be conducted prior to removing any of
the weedy species.
Lesson # 7 (Reflection)
Time: (1-2 hours)
Cycle Of Restoration
Students have now
covered a variety of learning outcomes that reinforce the
importance of restoration work. Students will develop
posters representing the continuous cyclical (seasonal) nature
of restoration work. The poster can be displayed to serve
as a Calendar and an ongoing display of what has been achieved
in the groupsâ restoration cycle. After participating in this
activity students will be able to provide a written, visual,
and oral presentation that defines the restoration cycle and
the its importance.
Returning The RON
Message of Restoration
Lesson # 8 (Educating
Others)
This lesson completes
the awareness cycle by having students become the educators
in their community. Students create projects from the
products of previous lessons that will serve as public educational
pieces.
Evaluation
Lesson # 9 (Post-Assessment)
The students are
given the same outcomes based pre-assessment exam that was
administered at the beginning of the curriculum. Students
will be asked to write or draw descriptions of the concepts
that they have explored over the course of the Return of the
Natives activities.