ALEX Learning Activity Resources

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ALEX Learning Activities  
   View Standards     Standard(s): [MA2015] PRE (9-12) 9 :
9 ) (+) Multiply a vector by a scalar. [N-VM5]

a. (+) Represent scalar multiplication graphically by scaling vectors and possibly reversing their direction; perform scalar multiplication component-wise, e.g., as c(vx, vy) = (cvx, cvy). [N-VM5a]

b. (+) Compute the magnitude of a scalar multiple cv using ||cv|| = |c|v. Compute the direction of cv knowing that when |c|v ≠ 0, the direction of cv is either along v (for c > 0) or against v (for c < 0). [N-VM5b]

Subject: Mathematics (9 - 12)
Title: Let's See How Multiplying a Vector by a Scalar Works!
Description:

This learning activity will be used to introduce multiplying a vector by a scalar and is intended for an introduction activity. The students will watch the Scalar and Vector video to learn how to multiply a vector by a scalar. This activity will lead to learning how to represent scalar multiplication graphically by scaling vectors and possibly reversing their direction and compute the magnitude of a scalar multiple.

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

 



   View Standards     Standard(s): [MA2015] PRE (9-12) 9 :
9 ) (+) Multiply a vector by a scalar. [N-VM5]

a. (+) Represent scalar multiplication graphically by scaling vectors and possibly reversing their direction; perform scalar multiplication component-wise, e.g., as c(vx, vy) = (cvx, cvy). [N-VM5a]

b. (+) Compute the magnitude of a scalar multiple cv using ||cv|| = |c|v. Compute the direction of cv knowing that when |c|v ≠ 0, the direction of cv is either along v (for c > 0) or against v (for c < 0). [N-VM5b]

Subject: Mathematics (9 - 12)
Title: Scalar Multiplication With Vectors
Description:

This learning activity will be used during a lesson on using scalar multiplication with vectors. Students will explore how to perform scalar multiplication component-wise and represent scalar multiplication graphically. This activity will lead to learning how to compute the magnitude of a scalar multiple cv using ||cv|| = |c|v.  The teacher will use the Scalar Multiplication of Vectors Lesson to cover the “I Do,” “We Do,” and “You Do” portions of the lesson.

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



ALEX Learning Activities: 2

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