KTM User Pages Writing Fractions. Here’s one on Subtraction.
And, here’s another. In DI, teachers use pre-designed scripts
when teaching. The scripts are based on extensive research
regarding student retention, and every aspect of every script is
based upon results that were demonstrated through research. The
great advantage of this approach is that every teacher using the
script becomes the beneficiary of that research and will
probably teach much more effectively than if left to her own
devices. DI designers test the programs carefully before
publishing them and each DI program is extensively revised based
on specific student error data from the field test. Scripting
the lessons allows sharing of these “polished stones” across
teachers. Also scripting helps reduce the amount of teacher
talk. Children learn by working through the sequence of tasks
with carefully timed comments from the teacher. Children learn
little from straight teacher talk. Too much teacher talk
decreases pupil-motivation, draws out the l