Quarter 1 (2025-26)
PLTW: Principles of Engineering (H) - Mr. Crandall
August 18/19
Unit 1.1: Design Basics
Objectives
- In Lesson 1.1 students explore simple machines, where they are found, how they are used, and why they are the foundation of mechanical devices. They will explore the fundamentals of energy, work, and power then apply their understanding to maximize efficiency and power. Students then investigate the factors that impact pulley systems, how to maximize the efficiency of pulleys, and design their own pulley system in a simulation. Students discover the benefits and drawbacks of different gears and gear trains as well as how to optimize speed or torque through gear ratios. Finally, students build a compound machine using VEX parts that transports a payload (such as a 1000-gram weight) from the floor comprised of at least thee simple machines.
Unit Biblical Integration:
In this unit, students apply mechanical engineering concepts to solve real-world problems, which aligns with the biblical principle of stewardship found in Genesis 1:28: “Be fruitful and multiply, and fill the earth and subdue it; and have dominion over the fish of the sea and over the birds of the heavens and over every living thing that moves on the earth.” This verse signifies God’s delegation of authority to humans to manage and care for the earth—not to dominate it destructively. The word “subdue” implies bringing the earth into a state of order and productivity for the benefit of all creation, including humanity. As students use their understanding of mechanical systems to improve agricultural practices, they participate in this divine calling—applying innovation and knowledge to care for the world in a way that reflects God’s purpose and provision.
In addition, the collaborative and problem-solving aspects of the unit embody the biblical value of unity and shared responsibility. Ecclesiastes 4:9–10 says, “Two are better than one, because they have a good return for their labor: if either of them falls down, one can help the other up.” Working in teams to manage projects, design mechanisms, and conduct professional interviews teaches students to rely on one another’s strengths, reflect humility, and build one another up. These experiences not only develop essential career skills but also nurture a mindset of service, cooperation, and community that mirrors biblical principles.
Objectives
- Students will understand mechanisms and mechanical advantage.
- Students will learn how to access their myPLTW account
Classroom Activities
- Prayer
- Log on to your myPLTW account
- Discuss Simple Machines
- Work on Activity 1.1.1 Simple Machines Investigation
- See Activity 1.1.1 Simple Machine Construction
- Use hook weights instead of building resistance force
- Review Both Slide Decks for Simple Machines
- Review Activity 1.1.1 Simple Machines Investigation worksheet