Fun, dinosaur themed activity introducing the idea of ratios! There's a video, a couple of activities and a quiz.
Introductory video to ratios followed by a series of practice exercises. This is a full unit that goes into the topic in depth, including Ratio Tables (lesson 3) and Ratios on a co-ordinate plane (lesson 4).
Simple practice exercises for ratios. The Burger Truck and Money Boxes exercises are the most engaging as they create real life scenarios.
As always, Maths antics does a great job of introducing a new topic (ratios) and placing it in the context of real world examples, when you would use them, and comparing them to another very similar concept - fractions.