Acadience Math K-6: Next Number Fluency (NNF)
Next Number Fluency is a standardized, individually administered measure of early numeracy that assesses a student’s ability to extend the counting sequence. Strategic counting is the knowledge of counting principles and skill in counting (Gersten et al., 2012). It is a fundamental skill that leads to mathematical proficiency and understanding (Siegler & Robinson, 1982). It also allows for flexibility in mental computing.
To administer NNF, the assessor provides a number that ranges from 1–99 and asks the student to say the next number. Since NNF assesses a student’s fluency in identifying numbers, the measure is timed. The assessor begins the stopwatch immediately after providing the first test item and stops at the end of 1 minute.
| Skill | Counting (extending the counting sequence) |
| Administration Time | 1 minute |
| Administration Schedule | Beginning of kindergarten to beginning of first grade |
| Score | 1 point for each correct number |
| Wait Rule | If the student does not respond within 3 seconds on an item, mark a slash (/) through the number. |
| Discontinue Rule | 0 points in the first five items (the first line) |
Scoring Rules for NNF
| Paper/Pencil Administration | Digital Administration | |
| Correct | Leave correct items blank. | Tap the number named correctly. |
| Incorrect | Draw a slash (/) through the item if the student states any number other than the correct answer or hesitates with an answer after 3 seconds. | Tap the “x” for any other response. |
| Self-Correct | If the student self-corrects within 3 seconds, write “sc” over the item that had been previously slashed. Count that item as correct. | If the student self- corrects within 3 seconds, tap the number named correct to change the answer from incorrect to correct. |
| Skipped Items | Draw a slash (/) through any skipped items. | Leave skipped items blank. |
For more information, please see the Math Assessment Manual located on the Acadience Resource Hub.
