Card lever mechanisms
Today I can explain that a lever turns around a pivot and its ends move in a curve.
A Look back3 min
- 1.
This card strip is a rectangle. How many corners does it have?
- 2.
A cereal box is shaped like this. How many flat faces does it have?
- 3.
Ola puts the split pin in the middle of this card strip. How much of the strip is on each side? Write your answer on the line.
a quartera halfa whole
B Watch me, then you4 min
Ola makes a lever from card and a split pin. She presses one end down. Watch what the other end does.

Push one end down.
The pivot stays in the same place.
The other end goes up in a curve.
- 1.
Kit pushes one end of his card lever down. Which way does the other end go?
updownit stays still
C Your turn7 min
Look at the lever, then answer each card.
- 1.
Which word names the point a lever turns around?
barpivotholeend - 2.
Which of these is also a lever?
a door handlea bowl of soupa sheet of paper - 3.
When the lever moves, its end travels in a …
straight linecurvesquare - 4.
Write each card in the right column.
scissorsseesawspongepaper cupLevers Not levers
Say it out loud: Point to the pivot on the lever. Which way does each end move?
D Spot the mistake3 min

- 1.
Explain why Ali is wrong. Use one example.
E Think deeper4 min

- 1.
Find one lever in your home. Draw it, mark the pivot with a dot, and say how its ends move.