Good readers interact with a source by annotating it. Students use a real highlighter with four colors to mark the evidence that matters, and name it with TRACKS.
Choose a grade and a level. Pick a color, then tap or drag across words to highlight them. Use the eraser to fix a mistake. Press Check to see which TRACKS category each piece of evidence belongs to and why. Stuck? The help button (or the H key) gives three small steps, one tap each: Remind me keeps full credit, Narrow it can earn up to 75 percent, and Size it up to 50 percent. Three stars need no help beyond Remind me.
Level 1: one sentence, one piece of evidence. Level 2: a short passage with one thing to find. Level 3: a full paragraph, many colors, and a review that shows the answer key.
Keyboard: arrow keys move by word, Space highlights or unhighlights, 1 to 4 pick a color, E picks the eraser, hold Shift with an arrow key to highlight as you move, H asks for help one step at a time.