I have been designing resources for many years as I worked with preschool and primary age youngsters with delayed or impaired speech and language skills. The resources using symbols are free. My latest resources which I have illustrated are extra tasks based on Marion Blank's Language Levels (previous ones have been free). They can be used with groups of mixed language ability and are reasonably priced.
Symbols (c) Widgit Software 2010. These pages show some of the words that underpin talking about quantity, position, comparing, placing, arranging and so on. They all need to be practised with many different objects to ensure generalisation. Remember to stress first in a row is always on the left. This is critical to the understanding of instructions in maths and other areas. (First in the queue, however, depends on which way the queue is going. It's hard talking maths words!) Index in sheet order and alphabetical order.