'Vv' Upper and Lowercase Bubble Letters A4 Poster - No Images. This resource is suitable for a range of multi-sensory teaching activities. Once laminated this phonic and letter formation teaching resource would make a great play dough mat for any EYFS/Primary classroom. Please share the different ways you have used this resource with PTC’s community in the ‘Rate/Review and Share Your Ideas’ box below. Many thanks, Paul@PTC