In this math lesson, students reviewed a previous assignment involving measuring objects like tables and rooms using various tools, emphasizing the importance of starting measurement from the zero mark and aligning it to the nearest centimeter. Different measurement units such as millimeters, centimeters, and meters were discussed, with practical tips on which tools to use for different lengths, such as a trundle wheel for room measurements and a ruler or measuring tape for smaller objects. The lesson concluded with a reminder to measure accurately and practice these skills in future tasks.