The presentation is meant for middle school students for concept of physics

1. Learning episode:
Defining force with visual and text literacy
Lalit Kishore, Plenum School, Himachal

2.  Forms of common life experiences of
force
◦ Push and
◦ pull
 Examples
◦ Dragging of a box
◦ Opening and
◦ closing of a door
 Push or pull is an interaction on an
object

4.  Technical name of push and pull =
FORCE
 Demonstration of
◦ Crumpling and tearing of paper (change in
shape and size)
◦ Flicking of paper ball (change of state of
motion-1 or speed change)
◦ Tying paper ball to thread and rotating it
(change of state of motion-2 or direction
change)

5.  Change of shape
◦ (volume change) and
◦ size (length or orientation change)
 Demonstrations / examples
◦ pressing sponge
◦ extending rubber band

6.  Force is that physical agency / quantity that
produces or tends to produce following two
effects
◦ state of motion and/or
◦ direction on motion
 It has both
◦ magnitude (amount, quantity) and
◦ direction
 or it is a vector quantity

7.  It is done as
◦Drawing a scaled line to
represent magnitude
◦With an arrowhead to represent
direction

8. Force is a physical vector
quantity that produces or
tends to produce the
change in the state of
motion and/ or direction

9. Nouns and verbs
Object
Force
State
Motion
Rest
Stationary
Speed
Direction
Orientation
Resultant
Net
Magnitude
Vector
Quantity
Amount
Shape
Size
Apply’
Exert
Cause
Push
Pull
Drag
Crumple

10. Force
Pull, push
Changes shape; changes speed, changes direction
A vector physical quantity that produces foregoing
effects

11. Force
Push, pull
Changes shape; changes speed, changes
direction
A vector physical quantity that produces foregoing effects