Measurement - DLO

Today we worked on a Measurement here is the Problem :

Malakai's mother is making ta'ovala for all the boys in the Tongan group at school. Each boy needs 1 1/2 of mat and she has 30 metres. How many ta'ovala does she make?

My Strategy:

So basically we ad 1 1/2 20 times and we got 30 meters, since we added them in pairs we counted how many times we added them and we got twenty boys, so that means 20 ta'ovala for all 20 boys. 

Here is a little picture from when we shared in front of our

whole group, and other strategies that other groups used.