Grade 08 Science - EC: S8.A.3.3.1
Grade 08 Science - EC: S8.A.3.3.1
Continuum of Activities
The list below represents a continuum of activities: resources categorized by Standard/Eligible Content that teachers may use to move students toward proficiency. Using LEA curriculum and available materials and resources, teachers can customize the activity statements/questions for classroom use.
This continuum of activities offers:
- Instructional activities designed to be integrated into planned lessons
- Questions/activities that grow in complexity
- Opportunities for differentiation for each student’s level of performance
Grade Levels
8th Grade
Course, Subject
Science
Activities
- List 3 human-made systems.
- Summarize how a hub-and-spoke system functions.
- Investigate 3 different types of trusses that can be used on a bridge. Which type do you think is the best to use? Use evidence to explain your thinking.
Answer Key/Rubric
- Acceptable responses may include, but are not limited to:
- railroads
- highways
- hub-and-spoke systems in communication
- trusses
- feedback controls in regulated systems
- Acceptable responses may include, but are not limited to:
- The hub is a central location.
- All of the spokes meet at the hub.
- When a good needs to be shipped from one place to another, it moves from one spoke to the hub.
- Then the hub transports the good to the appropriate spoke.
- Acceptable responses may include, but are not limited to:
- Baltimore truss – wrought iron tension members and cast iron compression members, multiple independent tension elements, easy to assemble
- Bowstring arch truss – diagonal load bearing members
- Brown truss – suited for timber bridges, iron rods as tension members
- Burr arch truss – combines arch and truss to create strong, rigid structure
- Cantilevered truss – lower chord under compression, upper chord under tension
- Howe truss – vertical members and diagonals that slope towards the center, vertical members are in tension, diagonal members are in compression
- K truss – truss forms a K due to position of vertical member and 2 slanted members
