Let's Talk about Place Value
Graphics found at Abc Teach and Mathatube.com
Plug in numbers inside a chart like the one below. I placed these numbers so my third grader could understand for his level: 2,351, 24, 560, and 1,000. A first grader can plug a number with one digit (like number 4) or plug a number with 2 digits (like number 24). A second grader can plug three digit numbers.
Great graphic from Mathatube.com and edited in my paint program so my third grader could learn place value.
Here is the number 1,247 represented with blocks and with the place value format:
Here is something fun my daughter worked while learning about large numbers. Its a pyramid of large numbers. The right side has the correct representation of the numbers. The left side is just a reflection.