Task Name : Multiplying and Dividing Negative Number Stories 
Task Level : I (Year 8) 
Semester : 1 
Topic : Directed Numbers 
VC Strand : Number and Place Value 
Web Address : http://maths.crusoecollege.vic.edu.au/npvI

Equipment Needed : Poster Paper 
Victorian Curriculum outcome : Carry out the four operations with rational numbers and integers, using efficient mental and written strategies and appropriate digital technologies 
Task description : Students create eight stories that describe multiplication and division of positive and negative numbers. Two should describe the multiplication of positive numbers; two should describe the division of positive numbers; two should describe the multiplication of negative numbers; and two should describe the division of negative numbers. Each story should contain: the written story; a picture accompanying the story; a number line describing the story; and an algorithm describing the story. 
Assessment options : Photograph of poster; digital image. 
Teacher notes : Money is a good way to describe these processes. If I gain three paypackets of $50 each, the effect on my wealth is +50 x +3 = +150. If I lose two of these paypackets, I lose positive money: +50 x 2 = 150. If I gain three bills for $25 each, I gain negative money: 25 x +3 = 75. However, if I lose two of these bills, I lose negative money which impacts positively on my wealth: 25 x 2 = +50. 