Lesson 2
Goals
1. Students can
add any given two vectors by using properties of a parallelogram and
understand the meaning vector tool includes while they use it in an
easier way to find a sum of two vectors.
2. Students can subtract any given two vectors by using properties of a parallelogram and
understand the meaning vector tool includes while they use it in an
easier way to find a sum of two vectors.
3. Students can find a
real multiple of a vector.
Prerequisite:
1. Students know properties for parallelograms with
transformation sense.
2. Students understand operation laws ( commutative, associative, and
distributive laws with the concepts of identity, and inverse )
Target graders: 11th
or 12th graders
Teaching procedure:
Step 1: Teachers
can start with providing real situations pertinent to vector concepts.
Post
the situation to students.
Step 2: By using
prallelogram, teachers show how to find the resultant vector from
adding vectors.
And ask open the vector tool file to add vectors.
GSP
Step 3: In the
same way, teachers can introduce vector subtraction and then summarize
ideas of addition and subtraction with operation laws.
GSP
Step 4:
Scalar multiplication GSP
Students Activity:
Technology connection:
1. Teachers and students
use the GSP to do basic operation with vectors.
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