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A discussion of balance and continuity
 

"Effective learning programs call for continuity from point to point, as well as across individual components of programs. Continuity breaks down where, for example, students do computing-rich work on a regular basis one year and rarely get to use a new technology the next. Discontinuities can also arise where there is inadequate programming for scope and sequence, and where there are uneven concentrations of new technology resources – human and non-human – within schools and between schools.