# 3 Part Ratios

Students learn how to use proportional reasoning to solve problems involving 3-part ratios.  As learning progresses they use equivalence and the unitary method to compare shares.
##### Differentiated Learning Objectives
• All students should be able to simplify a 3-part ratio using the highest common factor.
• Most students should be able to combine two 2-part ratios into a 3-part ratio.
• Some students should be able to share amounts between a 3-part ratio

### Mr Mathematics Blog

#### Area of Compound Shapes

To find the area of compound shapes students need to understand what the word compound means.  Therefore, I ask students to discuss in pairs a definition for the word compound and to extend it to include the shapes below.  As a result of their learning in science students agree that a compound can be defined […]

#### Priorities for the Spring Term

At the start of the Spring Term these are three main priorities for me as the Head of Mathematics.

#### Mutually Exclusive Outcomes and Events

I teach mutually exclusive outcomes directly after students have encountered Venn diagrams. This is the fifth Year 8 Probability lesson.