Levers & Pulleys
Investigation 2
Part 3
Real-World Levers
Students investigate common tools to determine that those tools are applications of the three classes of levers.
3. Lesson set up and Management
1. Systems
- 1.2 Structure of Systems
- 1.2.1 Systems Approach
Describe how the parts of a system interact and influence each other.
(ST01, STI02, STI03, & STI04) - 1.3 Changes in Systems
- 1.3.1 Nature of Forces
Know the factors that determine the strength and interactions of the various forces.
(CH01 1.3.1)
2. Inquiry
- 2.1 Investigating Systems
- 2.1.1 Questioning
Generate questions that can be answered through scientific investigations.
(IN01 2.1.1) - 2.1.4 Modeling
Correlate models of the behavior of objects, events, or processes to the behavior of the actual things under investigation; test models by predicting and observing actual behaviors or processes.
(IN04 2.1.4)
Conventions acknowledged by a group of people help them to communicate better and more efficiently.
Advantage is a gain in effort, distance, or change of direction resulting from the use of a simple machine.
3. Lesson set up and Management
Materials:
Student Management:
Students should continue to work with the same Science Partners they have been collaborating with throughout this unit.
Make sure you completely understand the worksheet before handing it out to the students.
Ensure student understanding of Part 3 before proceeding to Part 4.
Make overhead transparencies of all Student Work Sheets to aid in review and discussion.
Read Teacher and Student background sections before doing the investigations.
Writing Support:
Have students continue to record data in their journals. Start each lesson with a “focus question.”
• Make up riddles.
• List everyday levers
• Diagram make-believe levers.
Reading Support:
See the Science Stories Folio in the FOSS manual:
• Class-2 Levers
• Class-3 Levers
• The Inclined Plane