Lesson Plan

• Describe how pressure changes when force or area is varied.
• Explain the relationship p = F/A and predict the effect of altering variables.
• Apply the concept to everyday situations such as high‑heeled shoes, snowshoes, and hydraulic systems.
• Calculate pressure for given force and area values.
• Evaluate how hydraulic devices amplify force using pressure transmission.

• Projector and screen
• Whiteboard and markers
• Printed worksheet with force‑area tables
• Calculators or smartphones for calculations
• Hydraulic‑press demonstration kit (two syringes, tubing, water)
• Images of high‑heeled shoe, snowshoe, and hydraulic press
• Exit‑ticket slips

Begin with a quick “What pushes your foot into the ground?” poll to spark curiosity about pressure. Review students’ prior knowledge of force and area from previous lessons. State that by the end of the lesson they will be able to describe, calculate, and apply pressure concepts to real‑world examples.

1. Do‑Now (5'): Students list three everyday objects where pressure matters on mini‑whiteboards.
2. Mini‑lecture (10'): Define pressure, present p = F/A, discuss units, and show diagram of shoe vs. snowshoe.
3. Guided Practice (12'): Work through the provided table, calculate pressure for each example, and discuss trends.
4. Demonstration (8'): Hydraulic press using syringes – predict output force, then test and record results.
5. Group Activity (10'): Teams design their own everyday pressure example, calculate pressure, and present findings.
6. Check for Understanding (5'): Exit ticket – “If you double the area while keeping force constant, what happens to pressure and why?”

Recap the key idea that pressure rises with greater force and falls with larger area, illustrated by the examples explored. Collect exit tickets to gauge understanding and assign a short homework: calculate pressure for two new scenarios and explain the result.