This resource explores the concept of large numbers, emphasizing the importance of the base-ten system. It begins by presenting a brick challenge to help students visualize how quickly numbers can grow when grouped in thousands and millions. Through the use of a 'Place Value Power Chart,' learners see how numbers are organized into periods: Ones, Thousands, and Millions. The document includes engaging activities to understand place values better, such as mapping the number 450,000 on the Power Chart and comparing quantities. It reinforces why the base-ten system is essential, as it helps organize large amounts, aids in comparison, and utilizes tools for measurement. The resource prepares students for hands-on activities using physical models to further represent large quantities.