Planning tool

Students:

• understand what a logarithmic scale represets
• recognise, read and interpret a graph drawn using a logarithmic scale
• know when using a logarithmic scale is appropriate
• can draw a graph using a logarithmic scale.

Some students may:

• be unfamiliar with the concept of logarithms.
• not pay attention to the scale of a graph.

The Learning from home activities are designed to be used flexibly by teachers, parents and carers, as well as the students themselves. They can be used in a number of ways including to consolidate and extend learning done at school or for home schooling.

Learning intention

• We understand that logarithms are not just on paper or computers. They are applied all around us.
• We make connections with musical tonology of a piano and logarithms.

Why are we learning about this?

To make sense of the world around us, we need to identify elements that we learn about in school. Conversely, if we know about things like logarithms at school, we can apply it to our world at home, at work and in the environment.

What to do

Tuning and ratio

1. Find a keyboard or piano at school or at home. If you know how, play the C major scale. If you don't know how, start on the very middle note of the keyboard and work your way up the white notes.
2. Does it sound nice?
3. Go to this site on your device while sitting at the piano.
4. Find middle C. Read along and work your way down using your piano to understand and make connections between sound, musical notes and logarithmic scales.

Success criteria

• I can play a C major scale and understand what a musical scale is.
• I understand that a musical scale is a logarithmic representation of frequency.