DISK 20.

At the end of words C is often found with K. K always makes a "kuh" sound. When the two bricks, C and K, are found together (making a "double brick"), they always make one "kuh" sound.

So, reading round the disk, we have:

lack * lick * lock * luck * lucky.

20

Bricks and Mortar - free to print from Project HappyChild at www.happychild.org.uk. Free maths resources include addition, times tables, division and fractions - see also English, French, Accelerated Learning and free educational resources worldwide