Year 3 · first unit
Forces in Everyday Life
Opening a door, pulling a cart, riding a seesaw. We use forces all day long.
Push a box across the floor
A board to adjust
What happens if you push gently? And if you push hard?
On the seesaw with a friend
A board to adjust
What happens if my friend is heavier than me?
From here the same boards have numbers on them
What comes next in middle school · forces and motion
The same seesaw, now with numbers
The seesaw you handled above is still here. The weights and their places just have numbers on them now.
It is the seesaw you rode above
A board to adjust
This time there are numbers. Multiply the weight by its place.
Back up to the basics
