A broad introduction maps and their purposes. People and places -Mapping - What is a map? Learning Points Cartographers make maps. A map key explains what the colours and symbols on a map represent. Most maps are drawn to scale. Maps can display all types of information and help make sense of the world. 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.