In this design challenge, students will receive the task of improving an existing toy design called a Wigglebot. The Wigglebot can wiggle through the use of a DC motor, a machine that transforms electric energy into mechanical energy in the form of rotation.
Students will learn about electricity and circuitry before taking on the challenge of adding more features to this toy.
The students will be presented with the following problem:
“Maria’s company currently sells Wigglebots, but has gotten feedback from her market research that they need to do more than just wiggle. She is looking to improve the design of this toy to include more features while keeping its’ same look.”
Students will put on their engineering hats to help Maria improve the design of her toy! Students will engage in a STEM challenge to design a Wigglebot that can produce light and sound while still being able to wiggle.
Learning Objectives
Demonstrate that electricity travels in a closed path, creating an electrical circuit
Demonstrate that the flow of electricity in closed circuits can produce light, heat, and sound
Solve a problem using the engineering design process
Standards Alignments + Connections
4-PS3-2: Make observation to to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.
3-5-ETS-1: Define a simple design problem reflecting a need or a want that includes specified criteria for success and constraints on materials, time, or cost.
3-5-ETS-2: Generate and compare multiple possible solutions to a problem based on how well each is likely to meet the criteria and constraints of the problem.
Standards for Mathematics
4.MD.A.2 – Use the four operations to solve word problems involving distances, intervals of time, liquid volumes, masses of objects, and money, including problems involving simple fractions or decimals, and problems that require expressing measurements given in a larger unit in terms of a smaller unit
2021 Science TEKS covered in this design challenge
Students will engage in an electricity and circuitry STEM challenge to design a Wigglebot toy that can produce light and sound while still being able to wiggle.
Students will work to understand how devices like a three-speed fan or a dimmer switch adjust the flow of electricity in a circuit to have different outputs.
Students will engage in a STEM challenge to design a truck powered by a chemical reaction that will have to stop within a specific drop-off zone. Teams will be challenged with various payloads to earn bonus points if they can stop in the drop-off zone.