Logarithms - when adding is multiplying (Classpad)
This unit aims to provide a simple/useful way to thing about logarithms when first meting them.
We use two examples of "hard" to graph data (due to the extreme range in the values) to alert students to the idea of thinking about a number as its power, as opposed to its absolute value.
The rest of the unit aims to establish a way to think about calculating with logarithms that will set a sound foundation for later on and that builds on their knowledge of 'indices' from previous years.
All related files, can be downloaded below.