Graphing
Aimlines, trendlines, spreadsheets, and reading a progress graph.
Aimline and Trendline Explained for IEP Progress Graphs
What an aimline (goal line) and a trendline are, how to draw both, and how NCII's decision rules compare them, with a calculator for the slopes.
Graphing IEP Data in a Spreadsheet, Step by Step
Build an IEP progress graph in Excel or Google Sheets: a data table, an aimline column, a chart with a trendline, SLOPE, and a labels checklist.
How to Read an IEP Progress Graph: A Guide for Parents
A plain-language guide to the lines and dots on an IEP progress graph, what to look for, five questions to ask the teacher, and what a graph cannot show.