ציר המספרים - חיבור/חיסור מכוונים • Activity by יצחק מואיסיס

how can I initiate the triangle to be in same X_coordinate as N_1 (the first argument), thus the student will need to drag it in the right direction.

Sorry, I lost track of this one! Here’s how I’d approach it:


a_2Label is new, but make sure x_1=0 initially, and add n_1 to the triangle’s drag point.

Thank you very much, it works.