Ratio lesson observation

This lesson is suitable for lower and upper ability students. The work is differentiated and I have taught this to a mixed ability class. I have put bar model into the questions (its a fantastic method of teaching ratio). Suitable for both KS3 and KS4

The lesson focus's on the following skills and the worksheet is structured this way:

First section - Sharing out amounts - boxes are used for visual representation (bar model)

Section section - Given the ratio and the quantity, students are to find the other quantity (bar model)

Third section - Students are to find the totals given the ratio and a quantity (bar model)

Fourth section - This is a mixture of questions and students are to construct bar models

There is assessment opportunities to measure the progress at the start and at the end of the lesson. The starter Is basic division which I find works very well to settle students down quickly at the start of a lesson.

A lesson plan is attached explaining how I have gone about it.