Jack has been in a school$$s response to intervention $($RTI$)$ process for math difficulties. Students in this process are ranked on a $1$ to $5$ scale, with $5$ being the highest classroom benchmark and $3$ being the aim line. Jack$$s data indicate that he scored a $2,3,$ and $2$ on the last three learning sessions. Also, Jack$$s level of response to the instruction is about $15\%$ correct per data set.