Consonant-le is a final stable syllable that makes the sound of the consonant plus /ul/. (V.b) The e at the end is silent and the vowel is a schwa sound. There are variations in how it can be spelled. A helpful pupil says it is simple: an eagle is a symbol, a squirrel is a mammal.
Try an /ul/ variations online word sort and word search puzzle.
The middle letters of some /ul/ variation words can double. /ul/ variations: mammal, fossil, tunnel, funnel.
Phonics Pow 