Explore how simple machines make work easier and safer as students investigate, evaluate, and design inclusive playground features that solve real-world problems

Simple machines help people solve problems through safe and efficient design
Learners examine familiar examples of simple machines and develop criteria for what makes their use helpful.
How do simple machines help us
Choosing helpful simple machines for playgrounds
Designing helpful playground features
Each activity includes suggestions on what to assess throughout the activities.
This unit introduces students to the six simple machines and explores how they help people by making tasks easier, safer, and more efficient. Students begin by investigating how simple machines are used in everyday situations and use evidence to explain why they are helpful. They then apply criteria related to safety, accessibility, and usefulness to evaluate which simple machines would be most effective in a playground setting. Building on this understanding, students engage in an engineering design challenge where they design a playground feature that incorporates multiple simple machines and meets the needs of diverse users. Throughout the unit, students develop their communication, critical and creative thinking, and personal and social competencies as they collaborate, justify decisions with evidence, reflect on their learning, and design solutions for a community space.
Each activity offers potential modifications and extensions suggestions.