What is the difference between politics of redistribution vs. the politics of recognition and why does it come up under the topic of identities?

We spent some time in class discussing the politics of redistribution vs. the politics of recognition. What is the difference and why does it come up under the topic of identities? What do you think is the biggest challenge with developing a politics of recognition? Did you find any of the arguments we discussed more convincing than others? Why or why not? (Try to provide specific examples in your answer).