Unit 5 — January: Introduction to Animal Science and Genetics
Description
January introduces animal science through the livestock and poultry industries. Students classify animals, explore different livestock and dairy operations, and study companion animals. The unit emphasizes genetics through DNA extraction from strawberries, learning about Gregor Mendel and Punnett squares, understanding selective breeding, and examining chicken genetics. Students incubate chicken eggs to observe the chicken life cycle and dissect eggs to understand their structure.
Essential Questions
- How are animals classified and used in agriculture?
- How does genetic inheritance work?
- How do farmers use selective breeding to improve livestock?
Learning Objectives
- Classify animals by type and identify their uses in agriculture
- Understand the structure and function of DNA
- Apply Punnett squares to predict genetic outcomes
- Understand the principles of selective breeding
- Observe and document the chicken life cycle
- Identify chicken breeds and their characteristics
- Compare different livestock industries and products
Supplemental Resources
- Paper and markers for creating Punnett square activities and breed research posters
- Strawberries for DNA extraction activities
- Pom poms for Punnett square modeling activity
- Google Slides for presenting animal and genetics information
- Colored pencils for sketching chicken anatomy and life stages
Crosscutting Concepts
Disciplinary Core Ideas
Earth and Space Sciences
Life Sciences
Science and Engineering Practices
Students engage in reading informational texts, conducting research, and producing written work across all units. They write reports, blog posts, and portfolio updates on agricultural topics; engage in collaborative discussions about food systems, natural resources, and animal science; present findings using multimedia tools; and gather information from multiple sources to support claims about agriculture and the environment.
Students apply mathematical reasoning throughout the curriculum, including calculating food costs and nutrition from grocery advertisements, computing feed amounts and percentages for livestock, determining square footage for chicken coop design, converting units of measurement in food science, analyzing water chemistry data using graphs, and computing ratios and rates related to population dynamics and carrying capacity.
Students apply life, earth, and environmental science concepts across all units, including investigating plant cell structure and function, photosynthesis, and cellular respiration; studying genetics and heredity through Punnett squares and DNA extraction; analyzing ecosystems, food webs, and population dynamics; conducting water chemistry investigations; and examining the roles of organisms in natural systems and the impacts of human activity on the environment.
Career readiness, life literacies, and key skills are embedded throughout all units. Students explore careers in agriculture, food science, natural resource management, animal science, agribusiness, and veterinary science; develop personal finance and budgeting skills through agribusiness activities; use technology tools to research and present information; and apply critical thinking, collaboration, and communication skills in hands-on and project-based contexts.
Formative Assessments
- Observations during DNA extraction and genetic activities
- Journals documenting egg incubation progress
- Pair and share discussions on genetic concepts
- Self-evaluations of lab work and sketches
- Group discussions on selective breeding examples
Summative Assessment
Projects on animal breeds and genetics, portfolio updates with egg observation notes and life cycle documentation, presentations on livestock industries
Benchmark Assessment
Study Island data, pre-assessments, quizzes on animal classification and genetics
Alternative Assessment
Students may demonstrate understanding of animal classification and genetic concepts through oral explanation with visual supports such as labeled diagrams or photograph cards of livestock and poultry. For hands-on activities like DNA extraction and egg dissection, students may work with a peer or adult to complete steps while verbally describing observations, with simplified Punnett squares or modified graphic organizers to record genetic predictions.
IEP (Individualized Education Program)
Students may benefit from graphic organizers and visual diagrams to support understanding of DNA structure, Punnett square patterns, and animal classification systems. For hands-on activities such as egg dissection and DNA extraction, step-by-step illustrated directions and frequent check-ins can help students track their progress and stay on task. Output flexibility is important in this unit — students may demonstrate understanding of genetics concepts or the chicken life cycle through oral explanation, labeled diagrams, or dictated journal entries rather than extended written responses. Breaking the summative project into smaller, monitored checkpoints will support students in managing the research and documentation process.
Section 504
Students should be given extended time for genetics-based activities such as completing Punnett squares or written journal reflections on egg incubation observations. Preferential seating near the teacher during demonstrations of DNA extraction or egg dissection can support focus and access to visual models. Printed copies of any directions displayed on the board, along with highlighted key steps, will help students follow along during lab-based portions of the unit.
ELL / MLL
Visual supports are especially valuable in this unit — labeled diagrams of egg structure, animal classification charts with images, and illustrated vocabulary cards for terms such as DNA, genetics, selective breeding, and chromosome will help students build content-area language alongside conceptual understanding. Simplified, step-by-step directions during hands-on activities like DNA extraction allow students to participate fully while language is still developing. When possible, connecting genetics and animal husbandry concepts to livestock or agricultural practices familiar from students' home cultures can activate prior knowledge and increase engagement.
At Risk (RTI)
Connecting new concepts such as genetics and selective breeding to familiar, concrete experiences — such as pet breeds or food animals students already know — can help build a meaningful entry point into abstract content. Reducing the complexity of Punnett square tasks initially by starting with single-trait examples, and allowing students to use visual models before moving to symbolic notation, supports gradual mastery. Providing sentence frames for journal entries and pair discussions gives students a structured way to engage with and express genetic concepts without the barrier of open-ended writing.
Gifted & Talented
Students who demonstrate early mastery of Punnett squares and basic inheritance patterns can be challenged to explore more complex genetic scenarios, such as incomplete dominance, codominance, or polygenic traits, and consider how these apply to livestock selection in real agricultural settings. Encouraging independent research into the ethical dimensions of selective breeding — including genetic diversity, disease resistance, and industry-driven breed development — extends the unit's content into critical analysis. These students might also investigate how modern genomic technologies are changing animal agriculture and compare those advances to Mendel's foundational work, connecting historical science to contemporary practice.