SI (Standard International) Measurement is the method of reviewing the measurement that is always used in science lab. It will be a good idea to integrate the SI Measurement teaching strategy into your lesson plan in the first week of the school year. Students will need their skill in measurement to complete their scientific lab successfully. I always begin with SI Measurement every school year after I introduce the Lab safety Rule and Lab equipment. Measurement is the skill that the students need to comprehend the scientific lab investigation and to solve the scientific problems in lab successfully.