Max Maths, Year 2, Learn together, Measuring length in centimetres and in metres (4)

In a practical maths activity designed for Year 2 students, a character named Han engages in an exercise to understand measuring lengths using centimetres. Han begins by cutting three strips of paper in different colours: green, blue, and pink. Before measuring them, he makes an educated guess, estimating the length of each strip. His estimates are 8 cm for the green strip, 13 cm for the blue strip, and 9 cm for the pink strip. This initial step introduces the concept of estimation, which is an important skill in understanding measurement and developing a sense of length.

After making his estimates, Han uses a ruler to measure the actual lengths of the paper strips to see how close his guesses were to their true sizes. Upon measuring, he discovers that the green strip is indeed 8 cm long, matching his estimate exactly. The blue strip turns out to be slightly longer than he thought, with an actual length of 14 cm. The pink strip also matches Han's estimate, measuring at 9 cm. This activity demonstrates to students that estimates can be quite close to actual measurements, and it reinforces the use of centimetres as a unit of measure. The hands-on experience with a ruler aids in developing the children's measuring skills and their understanding of the relationship between estimated and actual lengths.