Levers & Pulleys
Investigation 2
Part 4
Lever Pictures
Students analyze pictures of familiar tools, identify those tools by lever class, and then diagram the lever systems.
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)
Students apply their content knowledge from the previous investigations.
3. Lesson set up and Management
Materials:
Student Management:
Have student(s) sort materials or make a materials list on the board; have one person from each pair gather the materials.
Specific students can be designated as “materials persons”.
This is a good time (midway through unit) to check Student Journals.
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:
• Write about Sparky and his troop.
• Research Block and Tackle.
• Write a story about how the pulley got its name.
Reading Support:
See the Science Stories Folio in the FOSS manual:
• Pulleys
• Dear Boss
• The Wedge