Curated OER
Linear Systems: Graphical Interpretation of Vectors and Linear Systems
In this interpretation of vectors and linear systems activity, students describe the geometric appearance of two vectors. They add the two vectors and sketch the sum as well as the vectors to determine the commutativity of vector...
OpenStax
Open Stax: Vector Addition and Subtraction: Graphical Methods
In this interactive site, students will begin to understand the rules of vector addition, subtraction, and multiplication and apply graphical methods of vector addition and subtraction to determine the displacement of moving objects.
OpenStax
Open Stax: Vector Addition and Subtraction: Analytical Methods
In this interactive students will begin to understand the rules of vector addition and subtraction using analytical methods. They will apply analytical methods to determine vertical and horizontal component vectors.
CK-12 Foundation
Ck 12: Vector Subtraction
[Free Registration/Login may be required to access all resource tools.] Understand vector subtraction v - w as v + (-w), where -w is the additive inverse of w, with the same magnitude as w and pointing in the opposite direction....
Khan Academy
Khan Academy: More Vector Math
A comprehensive list of the mathematical operations available as functions in the PVector object from Processing JS. Vector Subtraction and Vector multiplication are closely examined.
Wolfram Research
Wolfram Math World: Vector Difference
This site defines vector difference. Includes a formula and links to related topics.
Math Graphs
Houghton Mifflin: Math Graphs: Sketching Vectors 9 [Pdf]
The practice exercise asks students to sketch a new vector that combines two given vectors. The problem is available in PDF format.
Educaplus (Jesús Peñas Cano)
Educaplus: Resta De Vectores
Visualize the difference of two vectors with this interactive activity.
National Council of Teachers of Mathematics
The Math Forum: Vectors
This site from the Math Forum of Drexel University contains downloadable sketches and pictures related to vectors. You may need to down-load the Geometer's Sketchpad to view these pages.