13 Steps I wonder if there's a different way to climb 13 steps for each day of the year... Solving this problem might lead you to a famous number sequence. Age 11 to 16 Exploring and noticing Working systematically Conjecturing and generalising Visualising and representing Reasoning, convincing and proving Being curious Being resourceful Being resilient Being collaborative Problem Problem I wonder if there's a different way to climb 13 steps for each day of the year... Solving this problem might lead you to a famous number sequence.