Education Standards
OSPI Statistics and Geometry Instructional Task: Ocean Fishing
Overview
This resource was created by the Washington Office of Superintendent of Public Instruction.
Task
OSPI Statistics and Geometry Instructional Task B
Statistics and Geometry; Standard G-SRT.8, Claim 1, Claim 3F
Ocean Fishing
A fisherman is at point on the open sea and has three favorite fishing locations. The locations are indicated by points , , and . The fisherman plans to sail from to , then to , then to , and then back to . The fisherman is miles from .
The fisherman claims that he will sail over 60 miles this day.
- Find the distances the fisherman will sail. Round all values to the nearest tenth.
- Determine whether the fisherman’s claim is correct. Support your reasoning with numbers and words. Round to the nearest tenth.
Rubric
Rubric
Question Number | Standard/Claim | Description |
B | G-SRT.8/Claim 1 G-SRT.8/Claim 3F | A 2-point response demonstrates reasonable understanding of the standard and claims by doing all the following:
States that the fisherman’s claim is not correct because he will sail less than 60 miles. |
A 1-point response demonstrates partial understanding of the standard and claims by doing two of the following:
States that the fisherman’s claim is not correct because he will sail less than 60 miles. | ||
A 0-point response demonstrates almost no understanding of the standard and claims. |
1-point response is different from the 2-point response.
OSPI Statistics and Geometry Instructional Task B Exemplar
OSPI Statistics and Geometry Instructional Task B
Statistics and Geometry; Standard G-SRT.8, Claim 1, Claim 3F
Ocean Fishing
A fisherman is at point on the open sea and has three favorite fishing locations. The locations are indicated by points , , and . The fisherman plans to sail from to , then to , then to , and then back to . The fisherman is miles from .
The fisherman claims that he will sail over 60 miles this day.
- Find the distances the fisherman will sail. Round all values to the nearest tenth.
- Determine whether the fisherman’s claim is correct. Support your reasoning with numbers and words. Round to the nearest tenth.
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