In this invention unit, I have included comprehensive invention activities which take students through the creative process of inventing. Each activity should be self-explanatory. Students use 21st century skills throughout the unit such as problem-solving, critical thinking, and creativity. Students also learn about famous inventors and their inventions. THIS IS AN EXCELLENT UNIT FOR DIFFERENTIATION.IN THIS UNIT: 6 Warm - up activities which teach creativity, critical thinking, and problem solv