Final answer:
To create a model of a 3 to 2 ratio of shaded to unshaded, use 5 boxes, shade 3 to represent 'shaded' and leave 2 as 'unshaded'. This visual model represents the ratio accurately.
Step-by-step explanation:
To represent a ratio of 3 to 2 of shaded to unshaded, you need a total of 5 boxes since 3+2 equals 5.
Out of these five, shade 3 boxes fully to represent the 'shaded' part of the ratio and leave 2 boxes unshaded to represent the 'unshaded' part.
This visual representation will help you see that for every 3 shaded boxes, there are 2 unshaded boxes, maintaining the 3 to 2 ratio.
This model can assist with various mathematical principles, such as solving problems involving proportions or understanding the concept of ratios more deeply.