Bar Graphs

{"questions":[{"content":"A bar graph shows 6 votes for blue and 4 votes for green. How many votes did blue receive?<br>[[input-1]]","widgets":{"input-1":{"type":"input","answer":"6"}},"hints":["Read the value of the blue bar."],"explanation":"The blue bar represents 6 votes."},{"content":"A graph shows 8 books read on Monday and 5 on Tuesday. How many more books were read on Monday?<br>[[input-2]]","widgets":{"input-2":{"type":"input","answer":"3"}},"hints":["Find the difference between the two bars."],"explanation":"8 − 5 = 3 more books."},{"content":"Which part of a bar graph tells what each bar represents?<br>[[choice-3]]","widgets":{"choice-3":{"type":"choice","options":["Category labels","The page number","The border colour","The author name"],"answer":[0],"explanations":["Category labels identify what each bar represents.","","",""]}},"hints":["Look beneath or beside the bars."],"explanation":"Category labels identify what each bar represents."},{"content":"A graph uses a scale of 2. A bar reaches the fourth tick above zero. What value does it show?<br>[[input-4]]","widgets":{"input-4":{"type":"input","answer":"8"}},"hints":["Count 2, 4, 6, 8."],"explanation":"Four intervals of 2 represent 8."}],"mix":1}