Primary
Compare before measuring
Line up one end of two pencils and compare their lengths. A shared starting point makes the comparison meaningful.
Read the distance between endpoints
Place a pencil at the ruler’s zero mark and read the other end. If it begins at two and ends at nine, the distance is seven units, not nine.
The object starts at 2 and ends at 9. Its length is the distance between the marks: 7 cm.
View larger image ↗Check the unit
Include the unit, such as centimetres. Estimate before measuring, then compare the measured length with the estimate.
Keep exploring together
Choose activities that match the learner’s knowledge and readiness, and discuss what you notice. Explore the curriculum or parent guide below.