Describes a study of second, third, and fourth grade children in Israel to determine if computer assisted instruction is utilized differently by different groups of students (younger and older), and extent to which effort expenditure (total amount of time a child is engaged at the computer) is related to achievement. (MBR)

This study investigated the impact of integrated learning systems, problem solving software, and simulation software on elementary students' reading performance. Results indicate students entering fourth through sixth grade profited more from instruction supplemented by problem-solving and simulation software than from skills instruction. Results…