Today Primary 6 have been learning how to solve a murder mystery using pulse rates to make line graphs which will prove beyond any doubt who the murderer was. We hope to discover the guilty person by Friday. Could it have been:

• Desna the business woman who has lost millions
• Jackie whose hat pin could have been the murder weapon
• Lorna the yoga teacher who was very out of breath
• Sam the gardener who had all the right tools for the job.

The class found this exciting and challenging but are keen to solve the puzzle!