Place Value Cups. Use the cups to understand place value practice counting forward and backward learn the names of large numbers decompose numbers to expanded form. I would either label the cups 'ones' 'tens' etc. or add a comma cup or decimal point cup
Fun & catchy number rap counting by & LOVE it & all the kids that I've done it with enjoy it also! :)) Counting by to (twice) Counting by to (twice) Counting by to (once) P. "this song is really just the tune of COPS!