Learn. Practise. Build real understanding.
School subjects, languages, puzzles and practical skills—with worked examples, explanations and guided practice.
Measure before cutting
Identify the unit, zero point and smallest marked division on the measuring tool. Keep the tool aligned with the dimension being measured and read it from a suitable angle. Record the dimension immediately with units.
Measure twice using the same reference edge. A saw removes material called the kerf; plan which side of the line should be removed. A calculator cannot correct a measurement taken from the wrong reference.
Worked example
A 1 m board cut into two 500 mm pieces cannot retain both exact lengths if a 3 mm saw kerf is removed.
Try it yourself
Measure a tabletop in millimeters and convert the result to centimeters.
Check your understanding
What is saw kerf?
Kerf is the width of material lost during a cut.
Save to Pinterest