Khan Academy
Khan Academy: What Are Acceleration vs. Time Graphs?
What can you learn from graphs that relate acceleration and time? This tutorial takes a look at the vertical axis, slope, and area on a graph and provides examples.
Science Education Resource Center at Carleton College
Serc: Analyzing Forces and Motion Graphs by Riding an Elevator
A high school physics lab on classical mechanics in which young scholars study force versus time and acceleration versus time. Students need access to an elevator to complete the experiments. A lab handout is provided.
Other
Socratic: What Is an Acceleration vs Time Graph?
Explains how to construct and interpret an acceleration vs. time graph, and how it would relate to a velocity vs. time graph or a position vs. time graph.