After spending Friday and Saturday cutting out all the fabric, I finally got to stitch my first Hopscotch blocks yesterday, starting with the red ones (my favourite colour).
I worked out that you can cut all the fabrics without the templates, using the 30 and 60 degree lines on a rectangular ruler. (If anyone needs help with this, let me know). But I did find that the triangles are a bit small (or the trapezoids a bit large) when it comes to piecing the block, even though they are the correct size relative to the drawn templates. Nothing a bit of seam fudging can't fix.