 Author:
 Hannah HynesPetty
 Subject:
 Mathematics
 Material Type:
 Assessment, Homework/Assignment
 Level:
 High School
 Tags:
 License:
 Creative Commons Attribution NonCommercial Share Alike
 Language:
 English
 Media Formats:
 Downloadable docs
OSPI Quadratic Instructional Task: Rocket Launch
Overview
This resource was created by the Washington Office of Superintendent of Public Instruction.
Task
OSPI Quadratic Instructional Task G
Quadratics; Standard FIF.4, Claim 1; FIF.7a, Claim 1, Claim 2A; FIF.4, Claim 2C
Rocket Launch
A rocket is launched from a cliff. The relationship between the height of the rocket, , and the time since its launch, , in seconds, can be represented by the following function:
 When does the rocket reach its maximum height? Show work.
 What is its maximum height? Show work.
 How long after it reaches its maximum height does the rocket hit the ground? Show work.
 What does the number 384 mean in terms of this context?
Rubric
Rubric
Question Number  Standard/Claim  Description 
G  FIF.4/ Claim 1 FIF.7a/ Claim 1 FIF.7a/ Claim 2A FIF.4? Claim 2C  A 4point response demonstrates full and complete understanding of the standard and claims by doing all the following:

A 3point response demonstrates reasonable understanding of the standard and claims by doing three the following:
 
A 2point response demonstrates partial understanding of the standard and claims by doing two the following:
 
A 1point response demonstrates limited understanding of the standard and claims by doing one of the following:
 
A 0point response demonstrates almost no understanding of the standard and claims. 
OSPI Quadratic Instructional Task Exemplar
OSPI Quadratic Instructional Task G Exemplar
A rocket is launched from a cliff. The relationship between the height of the rocket, , and the time since its launch ,, in seconds, can be represented by the following function:
 When does the rocket reach its maximum height?
 What is its maximum height?
 How long after it reaches its maximum height does the rocket hit the ground?
 What does the number 384 mean in terms of this context?
The rocket reached its maximum height 2.5 seconds after it was launched.
The rocket’s maximum height was 484 feet.
The rocket hit the ground 8 seconds after launching, or 5.5 seconds after it reached its maximum height.
 The 384 in the function represents the height from which the rocket was launched.