27The following set of Blob tools are scales from high to low (or vice versa). They enable questions to be asked alongside the images. Here is an example of how to use them with the ‘Listening’ tool. Below are three instructions which can either be verbally asked, which is the best way, so that the Blobs are the main focus, or written underneath the image if your group are fully literate. We wouldn’t recommend giving written instructions to primary-aged pupils as so many struggle with the reading and comprehension elements of the question. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9781003096641/10f0df7f-95e9-4485-bcd4-1d4fa3750c61/content/fig2_unfig_002.tif"/>