Unit 5 — January: Introduction to Animal Science and Genetics
Description
Students begin their study of animal agriculture by classifying animals and exploring the livestock, dairy, poultry, and companion animal industries. The unit focuses on chickens as the primary study organism, examining past and present chicken farming practices, breeds, and characteristics. Students learn genetics fundamentals through strawberry DNA extraction and Punnett square activities using pom-poms. They explore selective breeding through the Build-a-Cow activity and apply genetic principles to chicken breeding. The unit includes chicken egg dissection, incubator setup, and study of the chicken life cycle.
Essential Questions
- How are animals classified and used in agriculture?
- How does selective breeding influence animal characteristics?
- How does heredity determine traits in animals?
- What conditions do chickens need to survive and reproduce?
Learning Objectives
- Classify animals and describe their agricultural uses.
- Explain the history and present state of chicken farming.
- Extract and observe DNA.
- Predict inheritance patterns using Punnett squares.
- Analyze selective breeding and its effects on traits.
- Describe chicken anatomy, life cycle, and requirements.
- Set up and monitor incubator conditions for egg hatching.
Supplemental Resources
- Pom-poms for Punnett square activities
- Markers and poster board for genetics concept posters
- Colored pencils for flipbook illustrations
- Lined journals for recording observations
- Index cards for chicken breed information
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 DNA extraction and genetic activities
- Journals documenting chicken research and observations
- Exit tickets on genetic concepts
- Pair-and-share discussions on selective breeding
- Group work on Punnett square problems
Summative Assessment
Projects including genetics posters, chicken life cycle flipbooks, and presentations on animal industry exploration
Benchmark Assessment
Study Island data, pre-assessments, quizzes, and unit tests on animal science and genetics
Alternative Assessment
Students may demonstrate understanding of animal classification and genetics concepts through labeled diagrams, oral responses to teacher questions, or simplified graphic organizers instead of written assignments. Physical models, manipulatives such as pom-poms for Punnett squares, and visual supports may be provided to support participation in DNA extraction and chicken breeding activities.
IEP (Individualized Education Program)
For students with IEPs, hands-on components such as the DNA extraction, egg dissection, and pom-pom Punnett square activities serve as natural entry points that reduce reliance on reading and writing while still building conceptual understanding. Teachers should provide graphic organizers and partially completed Punnett square templates to scaffold genetic reasoning, and allow students to demonstrate understanding of animal classification and the chicken life cycle through labeled diagrams or oral explanation rather than written summaries alone. Breaking the genetics poster or flipbook project into sequenced checkpoints with clear visual models of the expected product will help students manage the multi-step nature of summative work. Vocabulary support specific to animal science and genetics — such as trait, heredity, breed, and selective breeding — should be pre-taught and kept available as a reference throughout the unit.
Section 504
Students supported by a 504 plan should have access to extended time during genetics concept activities and exit tickets, particularly those requiring abstract reasoning about inheritance patterns. Preferential seating near the teacher during demonstrations such as incubator setup and egg dissection ensures these students can observe clearly and follow multi-step processes without distraction. Printed reference cards with key animal science and genetics vocabulary can reduce cognitive load and support focus during independent and group work.
ELL / MLL
Multilingual learners benefit from the highly visual and hands-on nature of this unit, so teachers should pair verbal explanations of genetics concepts and animal classification with diagrams, labeled photographs, and short video clips whenever possible. Key vocabulary — including terms related to livestock industries, genetic inheritance, and chicken anatomy — should be introduced with visual support and, where available, connections to equivalent terms in the student's home language. Directions for multi-step activities like DNA extraction or Punnett square problems should be given in short, clear steps with a visual model of each stage, and students should be invited to share observations in pair discussions before being asked to produce written responses.
At Risk (RTI)
Students who need additional support should be connected to the unit's concrete, observable experiences — such as handling the incubator, examining egg anatomy, and using physical pom-poms to model genetic combinations — as primary vehicles for building understanding before moving to abstract representation. Teachers can reduce the complexity of Punnett square tasks by beginning with single-trait crosses using familiar animal characteristics and gradually increasing complexity as confidence grows. Chunking the chicken life cycle flipbook or genetics poster into one section at a time, with teacher check-ins at each stage, helps at-risk students experience success and build momentum across the four-week unit.
Gifted & Talented
Advanced learners in this unit should be challenged to move beyond predicting single-trait inheritance and explore the complexity of polygenic traits or co-dominance as they apply to real livestock breeding programs. Students can investigate the ethical dimensions of selective breeding and genetic modification in modern animal agriculture, connecting their Punnett square and Build-a-Cow work to broader questions about food systems, biodiversity, and industry practices. Encouraging gifted students to research a specific livestock or poultry breed and present an evidence-based case for or against a selective breeding practice — drawing on genetic principles — provides the depth, analysis, and real-world application appropriate for their level.