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In Botswana, Special Needs Education has been implemented for 25 years with some success but there is still a need for evidence-based methods like Frequency Building, behavioural fluency, and Precision Teaching to be used to measure and improve school performance and learning. We explored the impact of these behavioural technologies on reading performances of four children with learning disorders (ADHD, speech impairment and acquired brain disorder) in a special school in Gaborone. At the assessment, two children were unable to read letter sounds and two could not read sight words. Reading performances were measured with frequency and displayed on a standard celeration chart. During the intervention, the length of the tasks was reduced and then augmented. Findings revealed that after 3 months of intervention children significantly increased their score stimulating self-confidence and enthusiasm during activities. This work demonstrates that behavioural technologies can be applied in Africa without using expensive or time-consuming resources.