Vector
9
Bell work Express a as a column vector Express b as a column vector Express a – b as a column vector Extension: Draw the vector a - b in your book. What is the magnitude of vector b? a b
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An introductory lesson on vectors
Transcript of Vector
Bell work
Express a as a column vector
Express b as a column vector
Express a – b as a column vector
Extension:Draw the vector a - b in your
book.What is the magnitude of
vector b?
a b
Learning objectives
To fully understand vector notation
To be able to use vectors and calculate vectors in a variety of problems
You will have met this learning objective if you can
(i) Express vectors in columns, as letters and as resultants of several letters
(ii) Draw vectors given instructions
(iii) Know and be able to use the law of vector addition
Reminder
How would you draw a vector of magnitude 6cm and direction 235?
If I label the above vector a, describe to me in detail
how to draw -a
What about 2a?
Reminder
If vector a is (- 4) and vector b is (- 2) what ( 6 ) (- 3)is the column vector for a + b?
a - b
What about 2a – 0.5b?
Input
a
Tell me something about these vectors….
For any non-zero value of k, the vectors a and ka are parallelK is called a scalar, it has magnitude only.
Input
OA = a
AB = b
Express OC in terms of a and b
A
B
C
Activity
Exercise 35D
page 573
Odd numbers
Exercise 35E
Review/ Plenary
Write in your book up to three things you need to remember about today’s lesson
Write down one thing you are not clear about and would like to go over again
Finally, write down a number from 1-5 suggesting how well you met the learning objective.
