Dig out your base 10 blocks and allow students the opportunity to model large numbers. This slideshow presents a visual image of a collection of blocks. Students are asked to build the number and then to write it down in standard form, expanded form, and written form. Eventually, after enough practice, the slideshow asks students to build the number, write it in standard form only and identify the digit in specific places. I encourage you to use my Place Value Organizer (in a plastic paper pr