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The Arizona STEM Acceleration Project

Electric Cardboard Car: Part 1

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Electric Cardboard Car: Part 1

A 6-8 grade STEM lesson

Michael Amato

January 29, 2024

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Notes for teachers

Materials for this will need to be purchased several days in advance to ensure their delivery prior to the lesson is taught.

Click here for Part 2

List of Materials

  • Hot Glue, Scissors, markers, soldering iron

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Standards

6th Grade AZ Science Standards

6.P4U2.5 Analyze how humans use technology to store (potential) and/or use (kinetic) energy.

6.P2U1.4 Develop and use a model to predict how forces act on objects at a distance.

7th Grade AZ Science Standards

7.P2U1.2 Develop and use a model to predict how forces act on objects at a distance

Standards

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Standards

NGSS Standard: MS-ETS1-1 (Engineering Design):

This standard emphasizes defining the criteria and constraints of a design problem with sufficient precision to ensure a successful solution, taking into account relevant scientific principles and potential impacts on people and the environment.

Students in this lesson define criteria for their electric car prototype, considering factors such as speed, maneuverability, and stability, while also exploring constraints such as available materials and budget.

NGSS Standard: MS-ETS1-2 (Engineering Design):

This standard focuses on evaluating competing design solutions based on a set of criteria and constraints and determining which solution best meets the desired characteristics or requirements.

Students compare and evaluate different design solutions for their electric cars, considering factors such as efficiency, durability, and ease of use, to determine the most effective approach.

Standards

NGSS Standard: MS-PS2-1 (Motion and Stability: Forces and Interactions)��This standard emphasizes investigating and describing the relationships between the motion of an object and the forces acting upon it.

Students explore the forces involved in the operation of their electric cars, including propulsion, friction, and gravity, and analyze how these forces influence the car's motion and stability.

NGSS Standard: MS-PS2-2 (Motion and Stability: Forces and Interactions)

This standard focuses on planning and conducting investigations to provide evidence that the change in an object's motion depends on the sum of the forces acting on the object and the mass of the object.

Students conduct experiments and gather data to understand how changes in force, such as adjusting the power of the motor or the weight distribution of the car, affect the motion and behavior of their electric cars.

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Objectives:

  1. Students will gain an understanding of basic circuits by constructing a cardboard prototype of an electric vehicle �
  2. Students will work through the engineering design process to test, troubleshoot, and iterate on their designs.

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Description:

Students are constructing a cardboard control vehicle. Throughout this process, they will practice working with circuits and motors.

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Agenda

  1. Anticipatory Set (5 minutes)�
  2. Materials Check (2 minutes)�
  3. Assembly
    1. Axles and Wheels (15 minutes)
    2. Body (20 minutes)�

Two 50-minute class periods

This lesson is part 1 of a two-class lesson

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Intro/Driving Question/Opening

Question: “What makes a car move” and “Where might we see electric vehicles in real life?”

Brainstorm: Ask students to brainstorm advantages of electric vehicles outside of the classroom. Possible answers include: agriculture, military and defense, construction and mining, transportation, search and rescue, and scientific research.

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Hands-on Activity Instructions

  1. Students begin by checking their materials to make sure they have the correct materials before beginning.�
  2. First, begin with putting the axel into only one wheel. �
  3. Next, put the motor into the motor holder and be careful of the wires. �
  4. Grab a piece of cardboard and begin cutting it to size and shape.

Suggested group structure:

    • Small groups of no more than 4 or independent work if there are enough materials purchased.

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Hands-on Activity Instructions

  1. The axels will go through the cardboard, so it is necessary to trim the cardboard so that it is thin enough for the axle to stick out on the other side for the second wheel. Use a pencil to mark the cardboard and cut on the mark. �
  2. This will be the same process for the other cardboard pieces that students will be gluing.

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Hands-on Activity Instructions

  1. Pick up the orange gear. This will be the middle of the car. �
  2. Mark a rectangle bigger than the gear. This triangle will be cut out. It is important to make sure the gear does not touch the cardboard when it spins. �
  3. Begin building the sides of the car that will hold the battery pack.

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Hands-on Activity Instructions

  1. Next, put the axles through the cardboard and add the second wheels. The back axle also gets the orange gear. �
  2. Check that the wheels spin easily as you push the car along.

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Hands-on Activity Instructions

  1. Glue the motor and motor holder to the car’s base. Make sure the white teeth on the motor touch the orange gear fully. They need to spin together for the car to move.

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Assessment

Frame� Is the frame of the car sturdy and well-constructed from � cardboard?

Are the dimensions of the frame appropriate for the � design of the car?

Are the edges of the frame securely taped or glued � together to prevent separation?�

Wheel

Are the wheels securely attached to the frame?

Do the wheels rotate freely without any obstructions?

Are the wheels aligned properly to ensure smooth � movement?

Battery Box Attachment

Are the wheels securely attached to the frame?

Do the wheels rotate freely without any obstructions?

Are the wheels aligned properly to ensure smooth movement?

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Differentiation

Students needing additional support in building may work with a peer.

Video components of this lesson contain simplified text at various stopping points; these can be read aloud or translated depending on student need.

Extended time

Remediation

Extension/Enrichment

Challenge Selection:

Present students with a list of challenges or goals they can choose from. These challenges can vary in complexity and focus on different aspects of the electric car, such as speed, agility, endurance, or functionality.

Examples of challenges:

Speed Challenge: Modify your car to achieve the fastest speed possible on a straight track.

Obstacle Course Challenge: Design your car to navigate through a challenging obstacle course with twists, turns, and barriers.

Payload Challenge: Customize your car to carry and deliver objects to specific locations.

Endurance Challenge: Build a car that can withstand prolonged use and complete multiple tasks without needing repairs.

Innovation Challenge: Come up with a unique feature or modification that enhances the performance or functionality of your car.