These pages appear out of order so that they can be printed and bound into a booklet. 
Print the entire document double sided, set to flip along the short edge. 
Do not print using booklet mode - that's already done for you. 
Some workbooks will use two sheets of double sided papers, some use only one. 

Most workbooks are sized for US sized 8.5x11" paper. 
Workbook 3 requires 11x17" paper. 