{{asɛmtiNe Ɔkyerɛwfo}} | Nhomakorabea | Nneɛma a ɛma wotumi yɛ ade

Akwankyerɛ

Explore key science and engineering concepts through inventions and innovations by Black inventors. This mixed-level activity blends reading, concept questions, a simple calculation, and a hands-on engineering prompt to honor contributions and build STEM understanding. Students will learn about engineering practices, historical context, and apply mechanics and design thinking.

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Who invented the automatic elevator door safety system that helped make elevators safer and more reliable?

Alexander Miles

Garrett Morgan

Elijah McCoy

Madam C. J. Walker

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Garrett Morgan is known for inventing a type of traffic control device and an early gas mask. Which engineering concept best explains why his traffic signal improved safety?

Reducing conflict points by separating vehicle movements

Increasing vehicle speed to prevent backups

Removing pedestrian crossings from intersections

Making traffic lights dimmer to conserve energy

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Which of the following are true about Elijah McCoy’s contributions to engineering? (Select two)

He created lubrication systems that allowed machines to run longer without stopping

He invented the first electrical generator for homes

His oiling systems increased industrial efficiency and reduced downtime

He designed the first programmable computer

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Madam C. J. Walker invented a chemical process used in modern plastics.

Nokorɛ

Ɛnyɛ ampa

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Name the inventor who improved telegraphy and invented early improvements to the telephone and communication devices.

Match each inventor to one of their contributions:\n- Alexander Miles \n- Garrett Morgan \n- Elijah McCoy\n\nRight side options:\n- Improved elevator door mechanism\n- Traffic signal and safety inventions\n- Automatic lubrication systems for machines

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In one paragraph: Explain how one Black inventor’s engineering solution solved a real-world problem and why that solution mattered for communities or industry.

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Elijah McCoy’s pulley problem: If a crate weighs $120$ newtons and a movable pulley gives mechanical advantage 2, what force must the worker apply (ignore friction)? Provide the numeric answer.

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Which engineering practice did many inventors use to improve an existing device?

Iterative improvement and testing

Patent secrecy without prototypes

Avoiding user feedback to keep designs pure

Increasing complexity whenever possible

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Design challenge: Choose one inventor from this activity. Sketch or describe one simple improvement you could make to one of their inventions for today’s world. Explain one science or engineering principle your change uses.

Black Inventors & Engineering

Black Inventors & Engineering

Who invented the automatic elevator door safety system that helped make elevators safer and more reliable?

Garrett Morgan is known for inventing a type of traffic control device and an early gas mask. Which engineering concept best explains why his traffic signal improved safety?

Which of the following are true about Elijah McCoy’s contributions to engineering? (Select two)

Madam C. J. Walker invented a chemical process used in modern plastics.

Name the inventor who improved telegraphy and invented early improvements to the telephone and communication devices.

In one paragraph: Explain how one Black inventor’s engineering solution solved a real-world problem and why that solution mattered for communities or industry.

Elijah McCoy’s pulley problem: If a crate weighs $120$ newtons and a movable pulley gives mechanical advantage 2, what force must the worker apply (ignore friction)? Provide the numeric answer.

Which engineering practice did many inventors use to improve an existing device?

Design challenge: Choose one inventor from this activity. Sketch or describe one simple improvement you could make to one of their inventions for today’s world. Explain one science or engineering principle your change uses.

Who invented the automatic elevator door safety system that helped make elevators safer and more reliable?

Garrett Morgan is known for inventing a type of traffic control device and an early gas mask. Which engineering concept best explains why his traffic signal improved safety?

Which of the following are true about Elijah McCoy’s contributions to engineering? (Select two)

Madam C. J. Walker invented a chemical process used in modern plastics.

Name the inventor who improved telegraphy and invented early improvements to the telephone and communication devices.

In one paragraph: Explain how one Black inventor’s engineering solution solved a real-world problem and why that solution mattered for communities or industry.

Elijah McCoy’s pulley problem: If a crate weighs $120$ newtons and a movable pulley gives mechanical advantage 2, what force must the worker apply (ignore friction)? Provide the numeric answer.

Which engineering practice did many inventors use to improve an existing device?

Design challenge: Choose one inventor from this activity. Sketch or describe one simple improvement you could make to one of their inventions for today’s world. Explain one science or engineering principle your change uses.