This is a power Point on Ratios. What is a ratio? What does a ratio look like? How would you use a ratio in real life? It includes a warm up with reducing fractions, notes and examples. If this works for you check out my ratio worksheet :)
In my classroom, I project my Power Points up on the white board. This allows me to interact with it, write on it, and let my students come up and write on it.
It is also easy to print out in case a student has a special need for it. Easy to upload onto your teacher website for absent students or students who need to look at it again.