Author:
Hannah Hynes-Petty
Subject:
Mathematics
Material Type:
Assessment, Homework/Assignment
Level:
High School
Tags:
  • Washington Office of Superintendent of Public Instruction
  • wa-math
    License:
    Creative Commons Attribution
    Language:
    English
    Media Formats:
    Downloadable docs

    Education Standards

    OSPI Statistics and Geometry Instructional Task: Ocean Fishing

    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:

    • Provides supporting work and writes AF = 17.1 and AP = 9.8.
    • Provides supporting work and writes PC= 12.8 and FC = 19.0 or 18.9.
    • States the total distance is 58.7 or 58.6 miles.

    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:

    • Provides supporting work and writes AF = 17.1 and AP = 9.8.
    • Provides supporting work and writes PC= 12.8 and FC = 19.0 or 18.9.
    • States the total distance is 58.7 or 58.6 miles OR a distance consistent with an incorrect segment in bullets 1 and/or 2.

    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.

    • The total distance the fisherman will sail is
    •  total distance
    •  miles
    • The fisherman over estimated a bit. He will sail under 60 miles.