Learning Resource Type

Learning Activity

Where Is My Arrow Pointing? (Components of a Vector Assessment)

Subject Area

Mathematics

Grade(s)

9, 10, 11, 12

Overview

This learning activity will be used to find components of a vector and is intended for an assessment activity. The students will complete the Where Is My Arrow Pointing Assessment to demonstrate mastery of how to find the components of a vector by subtracting the coordinates of an initial point from the coordinates of a terminal point. 

This activity was created as a result of the ALEX Resource Development Summit.

    Mathematics (2019) Grade(s): 09-12 - Precalculus

    MA19.PRE.9

    Find the components of a vector by subtracting the coordinates of an initial point from the coordinates of a terminal point.

    Unpacked Content

    UP:MA19.PRE.9

    Vocabulary

    • Components
    • Initial Point
    • Terminal Point

    Knowledge

    Students know:
    • If a vector is transposed in the xy-plane, it retains its magnitude and direction.

    Skills

    Students are able to:
    • Transpose a vector from one position to another position in the xy-plane.
    • Find the component form of a vector.

    Understanding

    Students understand that:
    • Vectors having the same magnitude and direction are equivalent regardless of where they are in the xy-plane.
    • Vectors in standard position have a terminal point that is equal to the components of the vector.

    Phase

    After/Explain/Elaborate
    Learning Objectives

    Learning Objectives

    Students will be able to find the components of a vector by subtracting the coordinates of an initial point from the coordinates of a terminal point. 

    Activity Details

    After/Explain/Elaborate Activity:

    • This activity will be used at the end of Finding the Components of a Vector lesson.
    • The teacher will distribute the Where Is My Arrow Pointing Assessment.
    • The students will complete the Where Is My Arrow Pointing Assessment independently to demonstrate mastery of how to find the components of a vector by subtracting the coordinates of an initial point from the coordinates of a terminal point (this can be done as a whole group or assigned through Google Classroom).  
    • The teacher will circulate the room to check for understanding of adding and subtracting vectors and can correct mistakes and misunderstandings as needed.
    Assessment Strategies

    Assessment Strategies

    • The Where is My Arrow Pointing Assessment will be used to assess the students' mastery.
    • The teacher is able to assess students' understanding while the students are working on the assessment.
    • Upon completion, the teacher will take up the completed worksheet and ensure at least 80% mastery of the skill.
    • After the assessment has been completed, the teacher should have meaningful dialogue on the process and procedures for finding the components of a vector by subtracting the coordinates of an initial point from the coordinates of a terminal point. 
    • Students should be allowed to collaborate and work problems out on the board for clarity for those who are still having trouble.

    Variation Tips

    Background and Preparation

    Background / Preparation

    • The teacher will need to make copies of the Where Is My Arrow Pointing Assessment before the lesson (suggestion: print 2 pages per page).
    • Students will need prior knowledge of vector quantities.

    Digital Tools / Resources

    ALSDE LOGO