This document outlines the agenda and steps for a hands-on session on implementing linear regression using MapReduce on Hadoop. The objective is to use a dataset of fish observations to predict the number of rings on a fish's shell based on other attributes. Attendees will copy sample data to HDFS, generate a larger dataset by replicating and modifying the samples, then use MapReduce to train a linear regression model to predict the number of rings based on the other attributes.