Bridge Building Competition: Testing Forces on Structures
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Bridge Building Competition: Testing Forces on Structures

Grade 5Science6 days
In this project-based learning experience, 5th-grade students engage in a hands-on engineering challenge to design and build a bridge that can withstand various forces such as earthquakes and floods. Through activities like the Structure Detective Explorers and Forces in Action Investigation, students explore different structure types, investigate forces, analyze material properties, and apply design principles to construct their models. The project culminates in testing the constructed bridges and assessing their performance, aligning with Ontario Science Curriculum standards focused on understanding structures and forces, material properties, and the design process.
Bridge BuildingForcesStructure DesignMaterial AnalysisProject-Based Learning
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Inquiry Framework

Question Framework

Driving Question

The overarching question that guides the entire project.How can we design and build a structure, such as a bridge, that effectively withstands various internal and external forces while considering the properties of materials and the principles of design?

Essential Questions

Supporting questions that break down major concepts.
  • What are the key forces that act on structures and how do they affect its stability and strength?
  • How can understanding the properties of materials help in constructing a stable structure?
  • What are different types of bridges and structures, and how are they designed to withstand various forces?
  • How does the design process contribute to creating an efficient and effective structure?
  • In what ways can we predict and test the effectiveness of a structure in terms of its ability to withstand forces?

Standards & Learning Goals

Learning Goals

By the end of this project, students will be able to:
  • Understand and identify different types of structures and their components.
  • Investigate and explain the effects of internal and external forces on structures.
  • Understand the properties of materials and their suitability for use in constructing stable structures.
  • Apply the design process to create a structure that can withstand various forces.
  • Develop problem-solving skills through designing, building, and testing structures.

Ontario Science Curriculum

5.1
Primary
Identify the different types of structures and their components.Reason: This standard aligns with understanding the types of bridges and structures, as well as their design, crucial for the project.
5.2
Primary
Investigate forces that act on structures and mechanisms, and identify the effects of these forces.Reason: The project involves testing structures against forces, directly relating to investigating these forces as per the standards.
5.3
Primary
Demonstrate an understanding of the relationship between the properties of materials and their uses in structures and mechanisms.Reason: Students need to understand material properties for effective structure design, making this standard highly relevant.
5.4
Primary
Use technological problem-solving skills to design, build, and test a structure.Reason: This encompasses the entire process of designing, creating, and testing structures, which is the essence of the project.

Entry Events

Events that will be used to introduce the project to students

Bridge Designers' Challenge

Students receive a surprise FedEx package labeled 'Urgent: Top Secret Mission.' Inside, they find materials and instructions inviting them to participate in a global engineering challenge where they must design a bridge that can withstand powerful forces, like earthquakes and floods. Mentors from a local bridge construction company join the unveiling, sharing real-world stories and setting the scene for inspirational exploration.
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Portfolio Activities

Portfolio Activities

These activities progressively build towards your learning goals, with each submission contributing to the student's final portfolio.
Activity 1

Structure Detective Explorers

In this foundational activity, students will embark on a visual exploration to identify various types of structures and their components. They'll think like real architects and engineers, discovering the characteristics that make structures unique and functional.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Organize a gallery walk featuring images and models of different types of structures such as buildings, bridges, and towers. Ask students to observe and take notes on the types of structures they see.
2. Introduce the components of structures, including beams, columns, and trusses, using interactive multimedia presentations.
3. Have students create a chart or diagram categorizing the types of structures and their components based on their observations.

Final Product

What students will submit as the final product of the activityA chart or diagram categorizing different structures and their components.

Alignment

How this activity aligns with the learning objectives & standardsAligns with Standard 5.1, focusing on identifying different types of structures and their components.
Activity 2

Forces in Action Investigation

Students will conduct experiments to gain hands-on understanding of internal and external forces acting on structures. This activity lays the foundation for recognizing how these forces impact stability and strength.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Perform a demonstration using a simple beam bridge model to showcase tension and compression forces.
2. Let students work in small groups to use small models and weights to test how their structures withstand various forces (e.g., pushing down to show compression, pulling apart to show tension).
3. Ask each group to present their findings on a poster, outlining the types of forces observed and their effects on the structural integrity.

Final Product

What students will submit as the final product of the activityA poster presentation summarizing the effects of different forces on model structures.

Alignment

How this activity aligns with the learning objectives & standardsAligns with Standard 5.2, relating to investigating forces that act on structures and their effects.
Activity 3

Material Property Analysts

In this analytical activity, students evaluate different materials to understand their properties and applications in structure design.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Introduce common building materials such as wood, metal, and plastic, and their basic properties (strength, flexibility, weight).
2. Conduct a comparative test using samples of each material to determine their strengths and weaknesses, such as which material can hold the most weight.
3. Have students document their test results in a table, highlighting which materials are best suited for various parts of a structure and why.

Final Product

What students will submit as the final product of the activityA documented table comparing materials and their suitability for structural use.

Alignment

How this activity aligns with the learning objectives & standardsAligns with Standard 5.3, focusing on understanding the relationship between material properties and their uses in structures.
Activity 4

Design Blueprint Workshop

Students will apply their newly acquired knowledge to create initial design blueprints for their project structures, emphasizing creativity and practicality.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Use guiding questions to prompt students to think about their structure's purpose and the forces it must withstand.
2. Encourage students to draft blueprints incorporating ideas on material uses and structural components, explaining their choices.
3. Facilitate peer review sessions where students present their blueprints to classmates for feedback and improvement suggestions.

Final Product

What students will submit as the final product of the activityA refined design blueprint for a project structure after peer review.

Alignment

How this activity aligns with the learning objectives & standardsAligns with Standard 5.4, involving the use of problem-solving skills to design and plan structures.
Activity 5

Constructors' Building Challenge

In this hands-on activity, students will build their designed structures and subject them to a series of tests, integrating and applying their knowledge from previous activities.

Steps

Here is some basic scaffolding to help students complete the activity.
1. Provide students with materials to build their structures according to their blueprints.
2. Conduct testing phases where structures are exposed to controlled forces simulating earthquakes, floods, and strong winds.
3. Students analyze performance and record data on how well their structures stood up to the forces.

Final Product

What students will submit as the final product of the activityA completed structure that has been tested and evaluated against various forces.

Alignment

How this activity aligns with the learning objectives & standardsEnds with Standard 5.4, focusing on building and testing structures using problem-solving and design skills.
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Rubric & Reflection

Portfolio Rubric

Grading criteria for assessing the overall project portfolio

Structures & Forces Project Assessment Rubric

Category 1

Understanding Structures

Assesses student ability to identify and describe different types of structures and their components.
Criterion 1

Identification of Structures

Evaluates the student's ability to correctly identify different types of structures and their components.

Exemplary
4 Points

Accurately identifies and categorizes a comprehensive range of structures and their components with detailed explanations.

Proficient
3 Points

Correctly identifies most structures and components with clear explanations.

Developing
2 Points

Identifies some structures and components but with limited explanations or detail.

Beginning
1 Points

Struggles to identify structures and components, providing minimal explanations.

Category 2

Investigating Forces

Assesses student understanding of forces acting on structures and their effects.
Criterion 1

Force Investigation

Measures how well students investigate and explain the effects of internal and external forces on structures.

Exemplary
4 Points

Conducts in-depth investigations, accurately explaining a wide range of forces and their effects with precise detail.

Proficient
3 Points

Performs thorough investigations with appropriate explanations of most forces and effects.

Developing
2 Points

Completes investigations with some correct explanations but lacks depth.

Beginning
1 Points

Struggles with investigations, offering minimal explanations or understanding of forces.

Category 3

Material Analysis

Evaluates the ability to analyze and use information about material properties in design.
Criterion 1

Material Evaluation

Assesses student analysis of materials and their suitability for construction.

Exemplary
4 Points

Demonstrates comprehensive analysis and comparison of materials, providing detailed justification for their uses in structures.

Proficient
3 Points

Provides clear analysis of materials with justified uses for most structural applications.

Developing
2 Points

Offers partial analysis with limited reasoning for material choices in structures.

Beginning
1 Points

Struggles to analyze materials or provide reasoning for their use.

Category 4

Design Process Application

Assesses student application of design process in creating blueprints and structures.
Criterion 1

Blueprint and Design Development

Evaluates how students apply design principles in developing blueprints and conceptual designs.

Exemplary
4 Points

Produces highly detailed and innovative blueprints with strong application of design principles and peer feedback incorporation.

Proficient
3 Points

Creates clear and functional blueprints, applying most design principles effectively with some peer feedback.

Developing
2 Points

Develops basic blueprints with limited application of design principles or feedback.

Beginning
1 Points

Struggles to create viable blueprints or apply design concepts effectively.

Category 5

Construction and Testing

Evaluates the construction and testing of designed structures, focusing on application of problem-solving skills.
Criterion 1

Structural Testing and Analysis

Measures student ability to construct, test, and critically analyze the performance of their structures.

Exemplary
4 Points

Constructs and tests structures with precision, thoroughly analyzing performance and suggesting innovative improvements.

Proficient
3 Points

Builds and tests structures effectively, providing clear performance analysis and reasonable improvements.

Developing
2 Points

Builds structures but provides limited analysis or simplistic improvement suggestions.

Beginning
1 Points

Struggles to build and test structures, offering minimal analysis or improvements.

Reflection Prompts

End-of-project reflection questions to get students to think about their learning
Question 1

Reflect on the process of designing and building your structure. What challenges did you face, and how did you overcome them?

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Required
Question 2

How well do you think your final structure performed against the forces it was tested under? What could be improved if you were to redesign it?

Text
Required
Question 3

On a scale from 1 to 5, how confident do you feel about applying the principles of design and understanding of materials to future projects?

Scale
Required
Question 4

Which activity or lesson during this project did you find most engaging or valuable?

Multiple choice
Required
Options
Structure Detective Explorers
Forces in Action Investigation
Material Property Analysts
Design Blueprint Workshop
Constructors' Building Challenge
Question 5

What is one key insight or lesson you gained about engineering and design that you did not know before?

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Required