Minimal Pairs Therapy

Minimal pairs is an approach to speech sound therapy that uses pairs of words that differ by just one sound. The words typically consist of the sound the child says in error and the sound the speech therapist is supporting the child to say. For example, if the child says all their ‘k’ sounds as ‘t’, a minimal pair would be ‘cap’ and ‘tap’. The words are usually shown on picture cards to help the child understand their meaning.

Speech therapists will often use minimal pairs with children who show patterns in their speech, such as always producing sounds that are typically said at the back of the mouth (k, g, sh) at the front (t, d, s). This approach helps the child recognise the difference in sounds and how changing a sound within a word can change the word meaning.

Minimal pairs therapy has three key steps:

1. Familiarisation. The child is taught the meaning of the words and is introduced to the different sounds. The speech therapist may use a metaphor to talk about the sound, such as ‘snake sound’ for s, or may talk about the type of sound, such as ‘front sound’ for t and ‘back sound’ for k.
2. Discrimination. At this stage, the child is asked to listen to words and identify which one the therapist is saying. For example, if the therapist says ‘cap’, the child would be expected to pick up the picture of the cap. This stage helps familiarise the child with the differences in sounds and starts to help them tell apart two similar-sounding words.
3. Production. At this stage, the child is asked to say the word themselves. The therapist uses a variety of cues, such as pragmatic cues (looking confused when the child makes an error) or placement cues (explaining the placement of different parts of the mouth to achieve the sound). Every so often, the therapist might remind the child of the different meanings, such as by saying, ‘Tap? We don’t wear a tap, we wear a…’.

For more on speech sound disorders and therapy, and some great resources for parents, visit Caroline Bowen's website.

References

Baker, E. (2010). Minimal pair intervention. In A.L. Williams, S. McLeod & R.J. McCauley (Eds.), Interventions for speech sound disorders in children (pp. 41-72). Baltimore, MD: Paul H. Brookes.