Use materials to design a solution to a human problem by mimicking how plants and/or animals use their external parts to help them survive, grow, and meet their needs

Standards Alignment

• 1-LS1-1 primary
  Use materials to design a solution to a human problem by mimicking how plants and/or animals use their external parts to help them survive, grow, and meet their needs.*

Lesson Overview

This Grade 1 science lesson engages students in using materials to design solutions to human problems by mimicking how plants and animals use their external parts to survive, grow, and meet their needs. Students observe plant and animal structures, ask questions, and use simple engineering practices to create prototypes that solve problems inspired by nature. The lesson integrates NGSS and TEKS standards focusing on structure, function, and information processing in organisms and environments.

Learning Objectives

• Ask questions and define a problem based on observations of plants and animals and their external parts.
• Use materials to design a solution to a human problem by mimicking how plants and animals use their external parts to survive and meet their needs.
• Plan and conduct simple investigations and use tools safely to observe and measure plant and animal parts.
• Collect and record observations and data using pictures and words.
• Develop and use models or prototypes to represent solutions to problems inspired by plant and animal structures.
• Evaluate the design to determine if it works as intended and explain how it helps solve the problem.

Success Criteria

• Students can identify external parts of plants and animals and explain their functions.
• Students can ask questions about how these parts help organisms survive.
• Students can design and build a simple model or prototype inspired by plant or animal structures.
• Students can safely use tools to observe and measure during investigations.
• Students can record observations and explain their design choices.
• Students can evaluate their design and communicate how it solves the problem.

Prerequisite Knowledge

Students should know basic plant and animal external parts (such as leaves, roots, stems, shells, tails, thorns, quills) and understand that these parts help organisms survive and meet their needs. They should be familiar with making observations and using simple tools like hand lenses.

Key Vocabulary

• external parts
• survive
• grow
• needs
• mimic
• prototype
• design
• investigation
• observation
• model
• function

Materials and Resources

• Pictures or models of plants and animals showing external parts (e.g., turtle shell, acorn shell, animal tail, thorny branch)
• Various craft materials (paper, cardboard, pipe cleaners, tape, glue, scissors)
• Hand lenses
• Notebooks or science journals
• Markers or crayons
• Safety goggles
• Simple measuring tools (rulers, balance scales)

Teacher Preparation

• Prepare images or models of plant and animal external parts with clear labels.
• Gather craft materials for student design activity.
• Set up a safe workspace with tools and materials accessible.
• Review safety procedures for using scissors, glue, and other tools.
• Prepare guiding questions to prompt student thinking about structure and function.
• Plan grouping of students for collaborative design work.

Detailed Lesson Notes

Understanding External Parts of Plants and Animals

Plants and animals have external parts that help them survive, grow, and meet their needs. For example, a turtle's shell protects it from predators, roots help plants absorb water and keep them stable, and thorns protect plants from being eaten. Animals use tails for balance and movement, and quills for defense. These parts have specific functions that help the organism live in its environment.

Mimicking Nature to Solve Human Problems

Humans can solve problems by copying (mimicking) how plants and animals use their external parts. For example, bike helmets can be designed like turtle shells to protect the head, or fences can use sharp points like thorns to keep out intruders. This process is called biomimicry. By studying nature, we can create designs that are effective and helpful.

Scientific and Engineering Practices in Grade 1

Students will ask questions about how plant and animal parts work and define a problem to solve. They will plan and conduct simple investigations using tools like hand lenses to observe details. Using materials, they will design and build a prototype that mimics a natural structure. They will collect observations and record data using pictures and words. Finally, students will evaluate their design to see if it works and explain how it helps solve the problem.

Using Tools and Safety

Students will use hand lenses to observe details of plant and animal parts safely. They will wear safety goggles when using scissors or glue. Teachers will demonstrate safe use of tools and supervise students during investigations and design activities to ensure safety.

Modeling and Prototyping

Students will create models or prototypes using craft materials to represent their design solutions. Models help students visualize and test ideas. They will compare their designs to the natural parts they mimicked and discuss advantages and limitations of their models, such as size or materials used.

Worked Examples

Classroom Activity

Use hand lenses to look closely at plant and animal parts. Ask questions and share observations about how these parts help the organism survive or meet its needs.

Guided Practice

Independent Practice

1. Foundational: Name one external part of a plant and explain how it helps the plant survive.
2. Developing: Look at a picture of a turtle. What part of the turtle helps protect it, and how does it do that?
3. Application: Design a simple model using paper or cardboard that mimics an animal's tail to help balance. Describe your design and how it works.
4. Analysis: Compare two designs: one inspired by a plant's roots for stability and one inspired by an animal's shell for protection. What are the advantages and limitations of each?
5. Challenge: Explain how you would improve your prototype if it did not fully protect or support the object it was designed for. Use what you learned about plant or animal parts to suggest changes.

Independent Practice Teacher Answer Key

1. 1. An example is a root, which helps the plant by absorbing water and keeping it stable in the soil.
2. 2. The turtle's shell protects it by covering its body with a hard surface that keeps it safe from predators.
3. 3. A paper tail attached to a model can help balance by acting like a counterweight, similar to how an animal's tail helps it stay steady when moving.
4. 4. The root-inspired design provides good stability but may not protect from harm. The shell-inspired design offers protection but may not help with stability. Both designs solve different problems based on the natural part mimicked.
5. 5. I would observe more plant or animal parts that solve similar problems and add features like thicker material for protection or wider base for stability, mimicking those natural parts to improve the prototype.

Guiding Questions

• What do you notice about the outside parts of plants and animals?
• How do these parts help the organism survive?
• What problem could we solve by copying these parts?
• How can we use materials to build a model that works like the natural part?
• Does your design solve the problem? How do you know?
• What can you improve in your design?

Common Misconceptions

• Students may think all external parts serve the same function rather than specific roles like protection, support, or sensing.
• Students might believe that copying nature means making an exact copy rather than mimicking the function or idea behind the structure.
• Some students may assume that bigger or stronger designs are always better without considering the purpose or limitations of the natural model.

Differentiation

Assessment

• Observe students asking questions and making observations during exploration.
• Check students' recorded observations and explanations in journals.
• Listen to students' explanations of their design choices and functions.
• Draw a plant or animal part you learned about and write one sentence explaining how it helps the organism.
• Describe one way humans can copy nature to solve a problem.
• Have students build and present a prototype that solves a human problem by mimicking a plant or animal external part.
• Ask students to write or verbally explain how their design works and what problem it solves.

Answer Guide

• Name one external part of a plant and explain how it helps the plant survive.
  Answer: A root helps the plant by absorbing water and keeping it stable in the soil.
• What part of the turtle helps protect it, and how?
  Answer: The turtle's shell protects it by covering its body with a hard surface that keeps it safe from predators.
• How can a paper tail help balance in a model?
  Answer: It acts like a counterweight, helping the model stay steady, similar to an animal's tail.
• What are the advantages and limitations of root-inspired versus shell-inspired designs?
  Answer: Root-inspired designs provide stability but not protection; shell-inspired designs provide protection but not stability.
• How would you improve a prototype that doesn't fully protect or support?
  Answer: Add features like thicker material or a wider base by mimicking other plant or animal parts that solve similar problems.

Real-Life Application

Encourage students to look for examples of plant and animal external parts at home or outside and discuss how those parts help the organisms survive.

Homework or Home Connection

• Encourage students to look for examples of plant and animal external parts at home or outside and discuss how those parts help the organisms survive.

Lesson Summary

Students learned that plants and animals have external parts that help them survive and meet their needs. By observing these parts and understanding their functions, students designed and built simple models that mimic nature to solve human problems. They practiced asking questions, using tools safely, recording observations, and evaluating their designs. This lesson connects science and engineering by showing how nature inspires human solutions.

Teacher Notes

Use the exact standards alignment and retrieved-source provenance stored with this enrichment.

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