<blockquote style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;" class="gmail_quote">Problem #2 None of the answer boxes holds the correct sum :( I am not sure where the logic error is but I am hunting for it! as we discussed yesterday, i have put all this work on the "multicanvas" tree. <a href="http://git.sugarlabs.org/projects/karma/repos/mainline/trees/multicanvas" target="_blank">http://git.sugarlabs.org/projects/karma/repos/mainline/trees/multicanvas</a> </blockquote> I have fixed the bug the problem was here: <a href="http://git.sugarlabs.org/projects/karma/repos/mainline/blobs/122ecd00112941ccde74932aef01c93d1b5c7cdb/examples/adding_up_to_10/js/lesson.js#line179">http://git.sugarlabs.org/projects/karma/repos/mainline/blobs/122ecd00112941ccde74932aef01c93d1b5c7cdb/examples/adding_up_to_10/js/lesson.js#line179</a> the problem was that "this" inside the callback function (for the click listener) is not the same "this" of the "each" function I changed this["id"] to <a href="http://item.id">item.id</a> + changed language to "spanish" :) (btw. could u get some decent english audio for "correct"/"incorrect" ?) + I have done some other changes (stylistic) <div class="gmail_quote"> 2009/9/3 Bryan Berry <<a href="mailto:bryan@olenepal.org">bryan@olenepal.org</a>> <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> I have adding_up kind of working w/ the new html layout, but it doesn't actually add up to the correct sum :( Problem #1 I kept getting an infinite loop in this section in the distance2() call I have to admit I don't exactly understand what distance2 is doing <a href="http://git.sugarlabs.org/projects/karma/repos/mainline/blobs/multicanvas/examples/adding_up_to_10/js/lesson.js#line142" target="_blank">http://git.sugarlabs.org/projects/karma/repos/mainline/blobs/multicanvas/examples/adding_up_to_10/js/lesson.js#line142</a> for ( var j=0; j<pos.length; j++) { if ( k.geometry.distance2( pos[j], {"x": x, "y": y} ) < 80 ) { flag = true; break; } } }while ( flag === true ); pos.push( { "x":x, "y": y } ); k.library.images[ imgId ].draw(ctx, x, y )} Also, i don't understand how u can call distance2 w/ pos[j] when pos is still an empty array. Maybe it is because js just does a lot of weird stuff. Problem #2 None of the answer boxes holds the correct sum :( I am not sure where the logic error is but I am hunting for it! as we discussed yesterday, i have put all this work on the "multicanvas" tree. <a href="http://git.sugarlabs.org/projects/karma/repos/mainline/trees/multicanvas" target="_blank">http://git.sugarlabs.org/projects/karma/repos/mainline/trees/multicanvas</a> -- Bryan W. Berry Technology Director OLE Nepal, <a href="http://www.olenepal.org" target="_blank">http://www.olenepal.org</a> </blockquote></div> -- Felipe López Toledo