Teaching with a focus on language sensitivity means that you consciously pay attention to linguistic aspects of your instruction. Support and challenge your students with targeted linguistic aids, without turning your subject lessons into language lessons. The practical handbook "Language Education in Mathematics" offers you easily understandable teaching aids that help you identify typical stumbling blocks in subject instruction, build subject-specific vocabulary with your students, and enable them to comprehend and produce subject texts. Additionally, you will receive useful practical tips for planning language-sensitive lessons. The volume contains fully prepared lesson units that make it easier for you to try out and gather experiences directly. Ready-to-use worksheets and checklists for students support your lesson preparation and provide numerous suggestions.