try these free resources
Many can just be photocopied and handed out as they are or projected onto a screen for class teaching, or used for homework or remote teaching.
for senior pupils - a "Population Course" and further "Population tasks" at https://www.ritchiecunningham.com/senior-secondary-resources
for middle school try "Population Density and Distribution" at
for 11-13-year-olds try "population and Empty Lands Introduction at https://www.ritchiecunningham.com/early-secondary-resources
also my book "Population and Migration" links to all my books on https://www.ritchiecunningham.com
The free resources are free - no catch, I'm retired and it gives me something to do - my books are cheap!