Not sure on what fifth grade is here, but I find khan academy super helpful, even now as an adult.

From what you’ve written, I think viewing this as a line chart over time would be helpful.

A step further, if your town is split into areas, I.e. up town, down town, east block, west block, etc & view that again as a time series you might see a pattern in events in different areas there

Edit: you might see that an event that occursed in the ‘west block’ often has an event in the ‘up town’