How must the environmental and engineering factors of designing a bridge be combined to create a safe bridge? People have built bridges over rivers, canyons, and other barriers for centuries. As engineers developed better technology and materials, the bridges became larger and stronger. Regardless of the type, all bridges apply common science principles related to forces, including tension and compression. Bridges of the future must be designed with lightweight materials that can withstand extreme weather events. Engineers must design bridges to create safe pathways for multiple forms of transportation, including bike lanes, pedestrian walkways, and passage for large cargo ships. Bridges can also be a source of inspiration, community gathering, and pride in a place. Bridges of the future must be designed with the community and environment in mind. Students will consider design criteria and constraints when defining an engineering problem. While analyzing the phenomena of the Hassanabad bridge collapse, students will consider the environmental and social factors involved in developing a structurally sound future bridge.

This is a 3-hour lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, print-outs, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Define and analyze the structural elements of bridges, including beams, arches, trusses, and suspension. (2) Identify tension and compression (tensile and compressive) forces in different types of bridges. (3) Analyze variables (materials, shapes used in the design, environmental factors) engineers must consider when designing a bridge with structural integrity with the ability to withstand a load (weather, cars, people, etc.)

How does the shape of a cam affect the motion of a mechanism or machine? Explore the types of cam and follower mechanisms to identify how they transfer motion in machines. Engineering a mechanical device involves designing with a result in mind. This challenge will ask students to explore math, science and engineering design through the device of cam and follower.

This is a 4-hour lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Identify types of cam and follower and how they are connected to levers and mechanisms. (2) Differentiate the shapes of cams and the movement created. (3) Design, build and demonstrate your cam and follower mechanism.

How do shape and weight impact the performance of a fidget spinner? This challenge will explore how shapes, weight and force impact the performance of a fidget spinner. Engineering a mechanical device involves designing with a result in mind. This challenge will ask students to explore math, science and engineering design through the device of a fidget spinner.

This is a 3-hour lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Investigate the basic shapes that make up a fidget spinner. (2) Explore how a fidget spinner works. (3) Design, build and test your own fidget spinner.

What types of 2D and 3D shapes make up the products all around you? This challenge will explore how different shapes can be put together to create a product. All the products that humans design and produce are a combination of different shapes. To design a product, engineers and designers must understand how combining, subtracting and adding shapes can make new and unique objects. This challenge will have students use a 3D design tool to create a new and unique shape.

This is a 60-minute lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, resources like cut-outs template, and learning extensions.

Lesson objectives: (1) Explore and interact with 3D shapes in a design plane. (2) Compose unique 3D shapes by decomposing other shapes. (3) Build a 3D shape from a 2D net.

How do simple machines and gears help devices work? In this challenge, learners will explore how gears are used in machines and mechanisms. Gears are closely related to simple machines and provide a mechanical advantage in machines. Devices worldwide contain gears and are components critical in mechanical engineering design.

This is a 3-hour lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Explore the connection between gears and simple machines. (2) Differentiate how different gears do work, transfer power, speed and direction. (3) Design, build and demonstrate a simple model of a gear train.

How can compression and tension be used to create sustainable and innovative structures of the future that require less material to build? This challenge will explore how forces can be harnessed to build strong structures instead of overcoming forces. When building structures, attention to endurance and sustainability are at the height of concern. Therefore, exploring methods for constructing buildings that maintain resistance to natural and external forces, such as high winds from hurricanes or vibrations from earthquakes, while simultaneously using reduced construction materials is necessary. In this challenge, students will examine tensegrity structures and, upon learning how they are constructed and work, design their own model tensegrity structures that would benefit a city or community.

This is a 2-hour lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Explore the forces present in tensegrity structures. (2) Review common challenges to building structures in modern and historical cities. (3) Evaluate how tensegrity structure principles can be used to create sustainable structures. (4) Design a sustainable structure and/or resistant to hurricanes or earthquakes.

Introducing engineering concepts with Hour of Engineering website is an engaging way to get students thinking about a STEM future. Hour of Engineering is designed to inform and inspire students in upper elementary through high school about engineering. Helping your students build an innovation mindset with the adaptive tools to solve problems starts here!

By participating in the Hour of Engineering students will: Define STEM vocabulary; Display engineering literacy; Explore the engineering design process; Experiment with practical engineering skills; Solve real-world engineering challenges; Link concepts between science, technology, engineering, and math; Build engineering habits of mind like creativity, systems thinking, and collaboration.

There are three parts to the Hour of Engineering website: landing page with inspirational content, learning modules, and engineering design challenges. (1) The landing page features clickable items to inspire students about the connection between engineering, art, science, math and even music! Students can freely explore the videos and models to learn about each object before moving on to deeper learning. (2) Learning modules allow students to explore a specific engineering topic. Students can explore learning modules on their own or you can pair them with connected engineering challenges to guide a sequence of learning on a topic. (3) Engineering challenges are a gamified way for students to explore various topics, activities and objects within fields of engineering. Students participating in engineering challenges earn stars based on their interaction with learning elements. There are knowledge checks and interactive models for students to explore during a challenge.

How can we alter the design of chip packaging to be more sustainable while protecting the product? Students will design a better way to package potato chips that will be less harmful to the environment and protect the product from being crushed during shipping. The potato chip. It’s crispy. It’s salty. It’s delicious. And you can’t eat just one! As consumers, we often devour a bag of potato chips without giving a second thought to what happens to the bag when we throw it away. Did you know that the average potato chip bag is nearly impossible to recycle? That’s because most bags used for this purpose contain up to 7 layers of plastic! Currently, there is no way to separate those layers, so the bags end up in landfills.

This is a 60 to 90-minute lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Research and analyze green materials that can be used in product packaging. (2) Investigate 3-D shapes and how they might be used to protect products from damage. (3) Create a design for green packaging that will contain food products.

How might you use an object’s gravitational potential energy to move an object? This challenge will explore how differently shaped objects store potential energy and are affected by gravity. We can see the energy of motion around us every day. From how we run to school or work to driving in our cars, the energy of motion can be seen (and experienced) everywhere. Exploring the energy of motion is one of the easiest ways to understand how energy transfers since we can see it so concretely! Analyzing energy use can help us recognize how we might design and develop sustainable energy systems in the future.

This is a 120-minute lesson that includes a self-paced interactive module and classroom activities. The teacher guide includes a challenge sequence (timeline), relevance to standards, materials list, assessment, evaluation rubric, and learning extensions.

Lesson objectives: (1) Students recognize that mechanical energy includes: Kinetic energy (KE)- the energy of motion, and Potential energy (PE)- the energy of position. (2) Students recognize that stored energy is potential while moving energy is kinetic.