Differential learners may have difficulty with expanded form. So I used this method on the whiteboard.
This was my goal.
I made 2 cards, blank on the underside and with "0" the top side.
The student placed the zeros in the tens and ones place to see the value of the hundreds digit.
The the student turned the middle card over as if turning a page which blocked the hundreds place, displaying the value of the tens digit.
Then, the student turned over the final card, turning it like a page covering the tens place, exposing only the ones place.
Finally, I have the student add the numbers again to show the original, standard form.
or
No comments:
Post a Comment