Investigate how the land use has changed over time in the Mojave desert near Las Vegas. People and places -Human geography - Changing land use Learning Points The way we use land changes over time depending on our needs. Redevelopment is the process of changing and improving the land so it is suitable for another purpose. A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three minutes – directly linked to core learning, Twig's curriculum films will fit neatly into your lesson plans.