Scientific Notation
Gr 9

The Grade 9 Scientific Notation module teaches learners how to express very large and very small numbers in a concise, standardised form using powers of ten. This chapter builds the essential skills needed for working efficiently with exponential values in mathematics and the sciences.

Learners begin by exploring why scientific notation is useful and how to convert numbers from standard form into scientific notation and back again. The lessons then cover comparing numbers in scientific notation, performing calculations using powers of ten, and applying exponent rules when multiplying or dividing numbers written in scientific notation. Clear examples and guided explanations help students avoid common errors and understand the logic behind each step.

By the end of this module, students will be able to interpret, convert, and calculate with scientific notation confidently—equipping them with practical skills used throughout physical science, algebra, and higher-level mathematics.