Ten-year-old casey refuses to line up at the door after recess. instead, he shoves past the other students, yelling that he has to be the first one in the door. casey is displaying a deficit.

performance                                                          

Explanation:

Performance deficit: The term 'performance deficit' is defined as an individual's or student's propensity to know the skills required to perform a particular behavior or task but unable to use those skills consistently.

In other words, a student has the capability to use a particular skill to perform a task yet not using that skill.

In the question above, Casey is displaying a performance deficit.

overview:

this is a technology-dependent lesson that students can guide at their own pace of exploration and learning. students share what they learn through the use of twitter (or alternative classroom sharing medium like todaysmeet). the use of a social sharing platform like twitter gives students a place for sharing with a wider audience, for more effective means of communication with each other, for incorporating viewpoints from all students in the classroom, and a means to reference thinking and learning by the use of a hashtag at a later time. students will understand the role the allied air forces played in the normandy invasion. teachers can use this as a stand-alone lesson or offer more structure by guiding students through each source, one by one. teachers may learn more about the eighth air force by accessing the abmc’s strategic bombing campaign interactive.

i think the answer is true : ))