User Guide

Word Form to Standard Form—Display on the board whole or decimal
numbers written out in word form, such as “twelve and fifty-eight
hundredths,” or “three hundred forty-two thousand six hundred twenty-
one.” Have students write these numbers in standard form on their boards
and hold them up to share answers.
Teaching tip: If students have trouble writing longer numbers in standard
form, encourage them to break the word form into “chunks” to show the
placement of a comma or decimal.
For decimals in word form, as in the example 2 and one tenth (2.1), have
students break the word form into two chunks: before and after the word
and, which represents the decimal place. By circling or underlining the word
and in word form, students are able to see where the decimal appears in
standard form.
Rounding Numbers—Have students write a particular number on their
answer boards; for example: 4,356. Tell them to round the number to
different place values, such as tens, hundreds, and thousands. Notice how
the answers change depending on the value being rounded to.
You can also do the same thing with decimals on the reverse side.
A Contest of Numbers—Hold team competitions in the classroom. Split
the classroom into two teams. Pass out one board to the first person on each
team. Call out a number. The first person (or team) to write the number
correctly on a board and hold it up wins! Also, try using the reverse sides of
the boards for a daring decimal race!