Our research has previously found developmental links between children?s awareness of rhythm in speech and their progress in reading. The Botnar project is testing the efficacy of educational interventions based on this research, including a poetry / music oral rhythm intervention and the speech signal interventions described above using assistive listening technology. The latter aim to help the brain to hear speech rhythm patterns more clearly. The new technology filters natural speech to amplify the rhythm cues in the speech signal that are processed poorly by children with reading difficulties. We measure efficacy via pre- and post-intervention brain imaging, and by documenting children's progress in reaching reading and language milestones, over a 5-year period.