Unit 2 — October: Water Quality, Aquatic Life, and Natural Resources
Description
This unit centers on the trout hatchery project and aquatic ecosystem management. Students learn about trout reproduction and habitat requirements by testing water chemistry for temperature, dissolved oxygen, pH, nitrates, and ammonia. They conduct a macroinvertebrate study using onion bags placed in streams, collecting and identifying species, particularly bioindicator species. Students explore population dynamics, carrying capacity, and graph interpretation. The unit culminates in case studies of natural resource management issues and student-created media to communicate about environmental and trout conservation to the public.
Essential Questions
- What water conditions are necessary for trout survival?
- How do organisms indicate water quality?
- What limits population growth in an ecosystem?
- How can we communicate environmental issues effectively to the public?
Learning Objectives
- Test and interpret water chemistry data to assess habitat suitability.
- Identify and classify macroinvertebrates and understand their role as bioindicators.
- Collect, organize, and analyze ecological data.
- Explain population dynamics and carrying capacity using graphs and real examples.
- Analyze natural resource management case studies and propose solutions.
- Create media (video, podcast, social media) to communicate environmental messages.
Supplemental Resources
- Construction paper and markers for habitat diagrams
- Graph paper for plotting water chemistry and population data
- Colored pencils for visual presentations
- Sticky notes for organizing ecological observations
- Clipboards for field data collection
Crosscutting Concepts
Disciplinary Core Ideas
Earth and Space Sciences
Engineering, Technology, and Applications of Science
Life Sciences
Science and Engineering Practices
Students read and analyze informational texts about agriculture, food science, natural resources, and animal science topics throughout the year. They write argumentative and informative pieces, including blog posts, portfolio updates, and project reports, to communicate findings and support claims with evidence. Students engage in collaborative discussions, present research to peers, and develop vocabulary specific to agricultural science domains.
Students apply mathematical reasoning across units, including calculating feed amounts, fertilizer ratios, percent loss, square footage for chicken coops, costs of food using grocery ads, carrying capacity using graphs, acreage and supply calculations for agribusiness planning, and unit conversions in food science measurements.
Students conduct investigations and laboratory experiments aligned to life science, earth science, and engineering standards throughout the year. Topics include plant cell structure and function, photosynthesis and cellular respiration, genetics and heredity, ecosystem dynamics and food webs, water chemistry and macroinvertebrate biology, natural resource management, and engineering design applied to agricultural structures.
Career readiness, financial literacy, and 21st century life skills are embedded throughout the curriculum. Students explore careers in agriculture, food science, veterinary science, natural resource management, and agribusiness. They develop personal finance skills through grocery budgeting and agribusiness planning activities, and practice workplace readiness skills including teamwork, communication, and problem-solving across all units.
Formative Assessments
- Observations during water testing and data collection
- Journal entries documenting macroinvertebrate findings
- Exit tickets on population dynamics concepts
- Group discussions on natural resource case studies
- Self-evaluations of media communication projects
Summative Assessment
Projects including a water quality report and media creation (video, radio broadcast, or social media post) comparing communication outlet effectiveness
Benchmark Assessment
— not configured —
Alternative Assessment
Students may demonstrate understanding of water chemistry and macroinvertebrate identification through labeled diagrams, verbal explanations during one-on-one conferences, or simplified data recording sheets with visual supports such as color-coded pH scales or species identification charts. Projects may be completed in alternative formats, such as a narrated presentation, annotated photographs, or a structured oral report in place of written reports or media creation.
IEP (Individualized Education Program)
During water chemistry testing and macroinvertebrate collection, provide graphic organizers with labeled diagrams and simplified data recording charts so students can document findings without relying heavily on extended writing. Offer oral response options for journal entries and exit tickets, allowing students to dictate observations or respond verbally to a teacher or peer scribe. Break multi-step lab procedures into numbered, illustrated steps and check in frequently during data collection to confirm understanding and provide corrective feedback before errors accumulate. When analyzing graphs related to population dynamics and carrying capacity, pre-highlight key data points and provide sentence frames to support written interpretation.
Section 504
Ensure students have extended time during water testing procedures and data recording tasks, as the hands-on and multi-step nature of lab work can increase processing demands. Provide printed copies of any directions or data tables displayed on the board, and consider preferential positioning near the teacher during field-based macroinvertebrate collection activities. For the summative media project, allow flexible deadlines and a low-distraction workspace when students are drafting or recording their communication pieces.
ELL / MLL
Introduce and consistently reinforce the unit's technical vocabulary — including terms such as dissolved oxygen, bioindicator, carrying capacity, and macroinvertebrate — through visual word walls, labeled photographs, and realia connected to the aquatic ecosystem context. Provide simplified written directions paired with visual demonstrations before water testing and stream sampling procedures, and ask students to restate directions in their own words before beginning. When students analyze case studies or create their media project, allow them to plan or draft in their home language first before translating key ideas into English, and supply graphic organizers that scaffold the structure of their communication piece.
At Risk (RTI)
Connect the unit's concepts to students' prior experiences with local waterways, weather patterns, or familiar animals to build relevance and entry points before introducing technical content like water chemistry parameters. Reduce the complexity of initial data recording tasks by providing partially completed tables or guided prompts that focus attention on the most essential variables, gradually releasing responsibility as students demonstrate confidence. For the media creation project, offer structured templates or choice among formats so students can select a mode that plays to their strengths, framing the task as a real opportunity to share what they have learned with their community.
Gifted & Talented
Invite students to design their own inquiry question related to water quality or macroinvertebrate populations — for example, investigating how a specific land-use pattern affects bioindicator diversity — and support them in collecting and analyzing data beyond what the class assignment requires. Encourage deeper engagement with natural resource management case studies by having students examine primary sources such as environmental impact reports or agency policy documents and evaluate the trade-offs of competing stakeholder positions. For the media project, challenge students to consider the rhetorical choices involved in science communication — audience, platform, framing, and persuasion — and to reflect critically on how different media outlets shape public understanding of environmental issues.