Wednesday 18 January 2012

Algebra Change of Subject 2

In the previous lesson, you have uncovered the implication of 'change of subject' and the processes involved.

Task 1
collaborative work

using TI-Nspire to

build your foundation on the key concept using examples presented in a collaborative environment.






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Task 2
Pair work

based on the activity in task 1, reflect on the processes involved and write it down on your worksheet 5.
Identify at least 2 points for consideration for 'Change of Subject'.
You may discuss with a partner in class.
Submit this at the end of the lesson.

reference:
Worksheet 5, ACE learning.

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Task 3
individual work

Extension of understanding on Change of Subject

Identify a formula in other subject areas (other than Mathematics)
- define which subject area the formula is applied and what the formula is about
- define all the variables used
- identify a variable (other than the one presented) to make a subject.
(ensure that this is possible)
[post this as a comment - do not include your solution[

example:
Subject: Physics
This formula is about the motion (movement) of an object
v = u + as
v - final velocity
u - initial velocity
a - acceleration of object
s - displacement
Question:
Make a the subject of the formula.

21 comments:

  1. Subject: Physics
    This formula is about the distance an object would go with the amount of speed and time it has.
    d = st

    d - distance
    s - speed
    t - time

    Question: Make t the subject of the formula.

    ReplyDelete
  2. This comment has been removed by the author.

    ReplyDelete
  3. Subject: Physics

    This formula is to calculate the total gravitational potential energy of an object (GPE)

    GPE = Height X Mass X Gravitational Field strength

    GPE = HMg

    Make M the subject of the formula

    ReplyDelete
  4. Subject: Physics
    This formula is to calculate the acceleration of an object.
    st = a

    s = Speed(In which Speed = Distance x Time)
    t = Time
    a = Acceleration

    ReplyDelete
  5. Subject: Chemistry

    (Volume)

    The formula to calculate area is different for different shapes.

    L x B x H

    L=length
    B=Breadth
    H=Height

    ReplyDelete
  6. This comment has been removed by the author.

    ReplyDelete
  7. Subject: Physics
    This formula is to measure how heavy one cm^3 of an object is

    The formula is (M)ass / (V)olume =(D)ensity

    Make M the subject.

    ReplyDelete
  8. Subject: Geography


    Gradient: (b - a)/(d x m)


    b = longer rise
    a = shorter rise
    d = distance (measured by ruler)
    m = distance (scale; converted to meters)

    ReplyDelete
  9. Subject: Physics
    This formula is to calculate turning moment of an object.
    fd = m

    f = Force applied
    d = Distance from pivot
    m = Turning moment of object

    Question: Make d the subject.

    ReplyDelete
  10. Subject : Physics
    This formular is to calculate the distance of an object with the given speed and time.
    d = s x t
    d = Distance
    s = speed
    t = time
    Make d the subject of the formula.

    ReplyDelete
  11. Subject: Physics

    This formula is to calculate the distance an object would go with the amount of speed and time it has.

    d-distance
    s-speed
    t-time

    Question: Make s the subject of formula.

    ReplyDelete
  12. Subject:Chemistry
    this formula is to find the chemical structure of water.

    the formula is 2 parts of hydrogen+1 part of oxygen.

    ReplyDelete
  13. Subject: Physics

    This formula is used to calculate the total GPE of an object.

    GPE= mass x height x gravitational field strength

    ReplyDelete
  14. Subject: Physics

    The formula is to calculate the kinetic energy of an object.

    KE = 1/2 MV^2

    Variable:

    M = Mass

    V = Velocity

    Make V the subject of the formula.

    ReplyDelete
  15. Subject: Physics

    Kinetic Energy

    m=mass
    v=velocity

    ½mv²

    Make V the subject of the formula

    ReplyDelete
  16. Subject: Physics
    Mass and the speed of light are a concept of energy.
    e = mc^2

    e = energy
    m = mass
    c = speed of light in a vacuum

    ReplyDelete
  17. Subject : Physics
    The formula is to calculate the distance from the given speed and time
    d=st
    d is distance
    s is speed
    t is time
    make s the subject of formula

    ReplyDelete
  18. Subject: Physics

    This formula is to calculate the amount of kinetic energy in an object.

    KE=GPE while stationary.

    Total energy - GPE = KE
    GPE= Gravitational Potential Energy
    KE= Kinetic Energy

    Find KE when GPE is 500J

    ReplyDelete
  19. Subject:Physics
    This formula is to calculate the amount of force needed to change the direction of a moving object.
    v-a=f
    v= velocity of moving object
    f=Force used to push the object to the other direction
    a=force leftover after pushing the object.

    Make a the subject?

    ReplyDelete