Many times, scores drop from spring to the following fall. A score of 260 dropping to a 256 is not a huge drop to be concerned about.256 is in the 99th percentile for 6th grade and 96th for 7th grade. According to NWEA website

MATHEMATICS
1 2 3 4 5 6 7 8 9 10
185 200 213 226
176 192 205 217
169 185 199 210
236 245 254
227 235 242
220 228 234
259 263 265
247 251 254
239 242 245

NWEA Median 163 179 192 204 213 220 226 230 233 235
156 172
149 166
142 159
186 197
180 190
174 184
206 212
199 205
191 197
217 221 224 226
209 213 216 217
201 204 207 207

1 2 3 4 5 6 7 8 9 10
A student score at or above the following scores on a 6+ Mathematics Survey with Goals test suggests student readiness for:
• 230 Introduction to Algebra • 235 Algebra
• 245 Geometry