Aim lines represent the goal or objective and keep us on track toward that goal How to generate aim lines: 1.Determine the aim date and aim rate based on the criteria expressed in the student’s long-term objective 2.Draw an aim star (an A right side up for accelerating target, an A upside down for decelerating target) at the desired rate and date intersection.

Determining Aim Lines Baseline Time A Number Hand raises

Determining Aim Lines Determine the mid-date and mid-rate of the LAST THREE DAYS OF BASELINE DATA POINTS. Mid-date and mid-rate are the median or middlemost points. Don’t average the points, simply count the # and take the middle. Mid- date: count left to right. Mid-rate: count bottom to top. Baseline Time A # hand raises

Determining Aim Lines Draw an aim line through the mid-date and the mid-rate intersection to the aim star. Baseline Time A # hand raises

Time Baseline Behavior AIM LINE EXERCISE A

Time Baseline Behavior AIM LINE EXERCISE A - Solution

Time Behavior A AIM LINE EXERCISE B Baseline

Time Baseline Behavior AIM LINE EXERCISE B - Solution

Time Baseline Behavior AIM LINE EXERCISE C

Time Baseline Behavior AIM LINE EXERCISE C - Solution

Objectives & Monitoring Given the prompt, “point to the…,” Richie will point to the designated object within 5 secs for 10 of 10 trials over 10 consecutive sessions by the 7th day of intervention. How will we measure progress toward this objective? Event recording--controlled presentations (correct response w/in 5 secs).

Ritchie’s Progress Correct Trials Days