Standards Alignment
- 2-ESS2-2 primary
Develop a model to represent the shapes and kinds of land and bodies of water in an area.
View 30 supporting standards
- TEKS.SC.2.01A supporting
ask questions and define problems based on observations or information from text, phenomena, models, or investigations; - TEKS.SC.2.01B supporting
use scientific practices to plan and conduct simple descriptive investigations and use engineering practices to design solutions to problems; - TEKS.SC.2.01C supporting
identify, describe, and demonstrate safe practices during classroom and field investigations as outlined in Texas Education Agency-approved safety standards; - TEKS.SC.2.01D supporting
use tools, including hand lenses, goggles, heat-resistant gloves, trays, cups, bowls, beakers, notebooks, stream tables, soil, sand, gravel, flowering plants, student thermometer, demonstration thermometer, rain gauge, flashlights, ramps, balls, spinning tops, drums, tuning forks, sandpaper, wax paper, items that are flexible, non-flexible items, magnets, hot plate, aluminum foil, Sun-Moon-Earth model, and frog and butterfly life cycle models to observe, measure, test, and compare; - TEKS.SC.2.01E supporting
collect observations and measurements as evidence; - TEKS.SC.2.01F supporting
record and organize data using pictures, numbers, words, symbols, and simple graphs; and - TEKS.SC.2.01G supporting
develop and use models to represent phenomena, objects, and processes or design a prototype for a solution to a problem. - TEKS.SC.2.02A supporting
identify basic advantages and limitations of models such as their size, properties, and materials; - TEKS.SC.2.02B supporting
analyze data by identifying significant features and patterns; - TEKS.SC.2.02C supporting
use mathematical concepts to compare two objects with common attributes; and - TEKS.SC.2.02D supporting
evaluate a design or object using criteria to determine if it works as intended. - TEKS.SC.2.03A supporting
develop explanations and propose solutions supported by data and models; - TEKS.SC.2.03B supporting
communicate explanations and solutions individually and collaboratively in a variety of settings and formats; and - TEKS.SC.2.03C supporting
listen actively to others' explanations to identify important evidence and engage respectfully in scientific discussion. - TEKS.SC.2.04A supporting
explain how science or an innovation can help others; and - TEKS.SC.2.04B supporting
identify scientists and engineers such as Alexander Graham Bell, Marie Daly, Mario Molina, and Jane Goodall and explore what different scientists and engineers do. - TEKS.SC.2.05A supporting
identify and use patterns to describe phenomena or design solutions; - TEKS.SC.2.05B supporting
investigate and predict cause-and-effect relationships in science; - TEKS.SC.2.05C supporting
measure and describe the properties of objects in terms of size and quantity; - TEKS.SC.2.05D supporting
examine the parts of a whole to define or model a system; - TEKS.SC.2.05E supporting
identify forms of energy and properties of matter; - TEKS.SC.2.05F supporting
describe the relationship between structure and function of objects, organisms, and systems; and - TEKS.SC.2.05G supporting
describe how factors or conditions can cause objects, organisms, and systems to either change or stay the same. - TEKS.SC.2.09A supporting
describe the Sun as a star that provides light and heat and explain that the Moon reflects the Sun's light; and - TEKS.SC.2.09B supporting
observe objects in the sky using tools such as a telescope and compare how objects in the sky are more visible and can appear different with a tool than with an unaided eye. - TEKS.SC.2.10A supporting
investigate and describe how wind and water move soil and rock particles across the Earth's surface such as wind blowing sand into dunes on a beach or a river carrying rocks as it flows; - TEKS.SC.2.10B supporting
measure, record, and graph weather information, including temperature and precipitation; and - TEKS.SC.2.10C supporting
investigate different types of severe weather events such as a hurricane, tornado, or flood and explain that some events are more likely than others in a given region. - TEKS.SC.2.11A supporting
distinguish between natural and manmade resources; and - TEKS.SC.2.11B supporting
describe how human impact can be limited by making choices to conserve and properly dispose of materials such as reducing use of, reusing, or recycling paper, plastic, and metal.
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Lesson Overview
This Grade 2 science lesson focuses on helping students develop a model to represent the shapes and kinds of land and bodies of water in a specific area. Students will engage in observation, questioning, data collection, and model building to understand Earth's systems and how land and water features are represented. The lesson integrates NGSS and TEKS standards, emphasizing scientific practices such as asking questions, using tools, collecting evidence, and communicating explanations.
Learning Objectives
- Create a model that shows different shapes and types of land and bodies of water in an area.
- Ask questions and make observations about landforms and water bodies using scientific tools.
- Collect and record data using pictures, words, and simple graphs to support model development.
- Identify advantages and limitations of models used to represent land and water features.
- Explain how their model represents the real-world features and communicate their findings clearly.
Success Criteria
- Students can identify and describe various landforms and bodies of water in an area.
- Students use observations and data to build a physical or drawn model representing land and water shapes.
- Students explain how their model shows the features of the area and discuss what the model can and cannot show.
- Students use tools safely and collect accurate observations during investigations.
- Students communicate their model and reasoning clearly to peers and listen respectfully to others' explanations.
Prerequisite Knowledge
Students should know basic land and water features such as hills, valleys, rivers, lakes, and oceans. They should understand that models are simplified representations of real things and that scientists use models to help explain and predict.
Key Vocabulary
- model
- landform
- body of water
- observation
- data
- investigation
- representation
- advantage
- limitation
Materials and Resources
- Large paper or poster board
- Drawing materials (markers, crayons, pencils)
- Clay or playdough
- Sand, soil, gravel
- Water trays or shallow containers
- Hand lenses
- Notebooks or science journals
- Pictures or maps of local landforms and bodies of water
Teacher Preparation
- Prepare pictures or maps showing different landforms and bodies of water in the local area or a familiar region.
- Gather materials for hands-on model building such as clay, sand, water trays, and drawing supplies.
- Set up a safe investigation area with tools like hand lenses and notebooks.
- Prepare guiding questions to prompt student observations and model development.
- Review safety procedures for using materials and tools during investigations.
Detailed Lesson Notes
Understanding Landforms and Bodies of Water
Landforms are natural shapes on Earth's surface such as hills, mountains, valleys, and plains. Bodies of water include lakes, rivers, oceans, and ponds. These features shape the landscape and can be seen in many different sizes and forms. Recognizing these features helps students understand the Earth's surface and how it changes over time.
What is a Model in Science?
A model is a simple representation of something in the real world. Models can be drawings, physical objects, or digital images that help us understand and explain complex ideas. In this lesson, students will create models to show the shapes and kinds of land and bodies of water in an area. Models have advantages, such as making things easier to see and understand, but also limitations because they cannot show every detail or scale exactly.
Scientific Practices: Observing and Asking Questions
Students will use their senses and tools like hand lenses to observe pictures, maps, and materials representing land and water features. They will ask questions such as 'What shapes do these landforms have?' or 'How does water move in this area?' Asking questions helps guide investigations and model building. Recording observations carefully is important to gather evidence for their models.
Developing and Using Models
Students will use materials like clay, sand, and water trays to build physical models of land and water shapes. They can also draw maps or diagrams to represent these features. While building, students should think about what features to include and how to show differences between land and water. They will discuss what their model shows well and what it might not show, understanding the model's limitations.
Communicating and Evaluating Models
After building models, students will explain their models to classmates, describing the landforms and bodies of water represented. They will listen to others' explanations and ask questions to understand different models. Evaluating models includes discussing if the model works as intended and how it helps us learn about Earth's surface. This practice supports communication and critical thinking skills.
Worked Examples
Worked Example 1
Scenario
A student builds a model using clay to represent a hill and a river next to it using blue paper. How does this model represent the shapes and kinds of land and bodies of water in an area?
Explanation
The clay hill shows a raised landform, representing the shape of a hill. The blue paper represents the river, showing a body of water next to the land. This model uses different materials to distinguish land from water and shows their relative positions, helping to visualize the area's features.
Answer Guide
The model shows a hill as a raised shape made of clay and a river as a flat blue area next to it, representing land and water shapes in the area.
Engage
Teacher Activity
Show students pictures or a short video of different landforms and bodies of water in a local or familiar area. Ask students what kinds of shapes and features they notice in the pictures.
Student Activity
Observe the pictures or video and share what landforms and bodies of water they see. Discuss with peers what makes each feature different or special.
Explanation
This activity activates prior knowledge and curiosity about Earth's surface features. It sets the stage for students to think about how to represent these features in a model.
Examples
- Students identify hills, mountains, rivers, lakes, or oceans in the images.
- Students describe shapes such as round hills or long rivers.
- Students express interest or curiosity about how to show these features in a model.
Explore
Teacher Activity
Provide materials like clay, sand, water trays, and drawing supplies. Guide students to explore these materials to create shapes that look like landforms and bodies of water.
Student Activity
Use the materials to build or draw different landforms and bodies of water. Experiment with shapes and sizes to represent features seen in the pictures or maps.
Explanation
Hands-on exploration allows students to physically represent land and water features, deepening their understanding through tactile and visual experiences.
Examples
- Students create raised areas to represent hills or mountains.
- Students use water trays or blue materials to represent bodies of water.
- Students try different shapes and discuss their choices.
Explain
Teacher Activity
Facilitate a discussion where students share their models and explain what landforms and bodies of water they included and why.
Student Activity
Present their models to the class or small groups, describing the features and shapes represented. Listen to others and ask questions.
Explanation
Explaining models helps students articulate their understanding and reflect on the accuracy and limitations of their representations.
Examples
- Students use correct vocabulary to name features.
- Students explain their choices of shapes and materials.
- Students recognize that models simplify real features.
Elaborate
Teacher Activity
Introduce the idea that models have advantages and limitations. Discuss how models can be used to solve problems or explain phenomena related to Earth's surface.
Student Activity
Compare their models with real maps or images and identify what their models show well and what they do not. Think about how models can help scientists.
Explanation
This phase deepens understanding of the purpose of models and encourages critical thinking about model use in science and engineering.
Examples
- Students identify features their models represent clearly.
- Students acknowledge that models cannot show every detail or exact size.
- Students suggest ways models help scientists understand or solve problems.
Evaluate
Teacher Activity
Ask students to reflect on their model-building process and how well their model represents the land and water features. Use questions and prompts to assess understanding.
Student Activity
Describe what they learned about landforms, bodies of water, and models. Share one thing their model does well and one thing it could improve.
Explanation
Evaluation helps students consolidate learning and provides the teacher with insight into student understanding and misconceptions.
Examples
- Students articulate key features of land and water.
- Students explain the usefulness of their model.
- Students suggest improvements or recognize model limitations.
Classroom Activity
Use the materials to build or draw different landforms and bodies of water. Experiment with shapes and sizes to represent features seen in the pictures or maps.
Guided Practice
Guided Practice 1
Prompt
Name two kinds of landforms and two kinds of bodies of water.
Teacher Answer Guide
Two landforms could be hills and valleys; two bodies of water could be rivers and lakes.
Guided Practice 2
Prompt
Describe how a clay hill and blue paper river model represents land and water.
Teacher Answer Guide
The clay hill shows a raised landform shape, and the blue paper river shows a body of water next to it, representing the area's features.
Guided Practice 3
Prompt
Explain one advantage and one limitation of models.
Teacher Answer Guide
An advantage is that models help us see and understand features easily; a limitation is that models do not show every detail or exact size.
Independent Practice
- Foundational: Name two kinds of landforms and two kinds of bodies of water you might find in an area.
- Developing: Look at a picture of a park. What shapes do you see for the land and water features?
- Application: Using clay and blue paper, create a simple model showing one landform and one body of water. Explain your choices.
- Analysis: Compare your model to a real map of the same area. What features does your model show well? What features does it not show?
- Challenge: Explain why scientists use models to study land and water features instead of always visiting the real places.
Independent Practice Teacher Answer Key
- 1. Examples of landforms are hills and valleys; examples of bodies of water are rivers and lakes.
- 2. Students might say the hill is round or curved, the river is long and winding, or the lake is round or oval.
- 3. A student might make a clay mountain and a blue paper lake, explaining that the mountain is a tall landform and the blue paper shows water.
- 4. Students might say their model shows the shape and location of the river well but does not show the exact size or smaller features like trees.
- 5. Scientists use models because they can study and test ideas easily, models can show things that are hard to see in real life, and models help explain and predict changes without traveling to the actual place.
Guiding Questions
- What shapes do you see in the land and water features?
- How can you show these shapes in a model?
- What tools can help you observe details?
- What are the good parts of your model?
- What parts could be improved?
Common Misconceptions
- Models are exact copies of real places; students need to understand models are simplified representations.
- All bodies of water look the same; students should recognize different kinds such as rivers, lakes, and oceans.
- Landforms do not change; students should learn that landforms can change over time due to natural processes.
- Models can show every detail; students should understand models have limitations in size and detail.
Differentiation
Support and Intervention
Provide pre-made templates or pictures for students who need help starting their models. Use simpler vocabulary and provide visual aids for English language learners. Allow students to work in pairs or small groups to support each other.
English-Language Learner Support
Use pictures and real objects to introduce vocabulary like landform and body of water. Provide sentence starters for explaining models, e.g., 'This is a ___. It shows ___.'. Use gestures and demonstrations to explain instructions clearly.
Advanced and Extension
Challenge students to include more landforms and water bodies in their models. Encourage students to explain how their model could change if the land or water changes. Have students compare different types of models (physical, drawn, digital) and discuss advantages and limitations.
Assessment
- Observe students during model building and discussions to check understanding of land and water features.
- Ask students to explain their models and reasoning during presentations.
- Use questioning to probe students' understanding of model advantages and limitations.
- Draw a simple model showing one landform and one body of water and write one sentence explaining your drawing.
- Name one advantage and one limitation of using models to represent land and water.
- Create a detailed model of a local area showing at least three landforms and two bodies of water and explain your model in writing or orally.
Answer Guide
- Name two kinds of landforms and two kinds of bodies of water.
Answer: Two landforms could be hills and valleys; two bodies of water could be rivers and lakes. - Describe how a clay hill and blue paper river model represents land and water.
Answer: The clay hill shows a raised landform shape, and the blue paper river shows a body of water next to it, representing the area's features. - Explain one advantage and one limitation of models.
Answer: An advantage is that models help us see and understand features easily; a limitation is that models do not show every detail or exact size.
Real-Life Application
Encourage students to observe and draw land and water features in their neighborhood or local park, discussing their observations with family members.
Homework or Home Connection
- Encourage students to observe and draw land and water features in their neighborhood or local park, discussing their observations with family members.
Lesson Summary
In this lesson, students learn to develop models representing the shapes and kinds of land and bodies of water in an area. Through observation, questioning, hands-on model building, and discussion, students understand that models are useful tools for representing Earth's features but have limitations. They practice scientific skills such as using tools, collecting data, communicating explanations, and evaluating models, building a foundation for understanding Earth's systems and processes.
Teacher Notes
Use the exact standards alignment and retrieved-source provenance stored with this enrichment.