The print version allows teachers to use the problem with their students without giving the students access to the archived answers.
Teachers can use the link to the archived problem to get ideas of student thinking.
The Fish Farm problem is designed to have students apply the concepts of ratio and equivalent ratio to distribute a set number of male and female fish into three ponds. As the students move fish from the tank into the individual ponds, the numerical and graphical displays of the current numbers of male and female fish will change. The pre-activity should help students begin to think about the concept of equivalent ratios, and how a ratio might be represented in a circle graph. The post-activity is an extension of the original problem, and should give students more opportunities to experience creating equivalent ratios in both numerical and graphical form. Please email us.