Essential idea:
Since 1948, the Système International d’Unités (SI) has been used as the preferred language of science and technology across the globe and reflects current best measurement practice.
Nature of science:
Common terminology: Since the 18th century, scientists have sought to establish common systems of measurements to facilitate international collaboration across science disciplines and ensure replication and comparability of experimental findings. (1.6) Improvement in instrumentation: An improvement in apparatus and instrumentation, such as using the transition of cesium-133 atoms for atomic clocks, has led to more refined definitions of standard units. (1.8) Certainty: Although scientists are perceived as working towards finding “exact” answers, the unavoidable uncertainty in any measurement always exists. (3.6)
Understandings:
- Fundamental and derived SI units
- Scientific notation and metric multipliers
Applications and skills
Guidance
Data Booklet reference
International-mindedness
Theory of knowledge
Utilization
Aims
- Aim 1:
- Aim 2: