Students worked with partners to complete a single-trait Punnett Square worksheet.  After working through the first question together (example below), students were presented with slides of key vocabulary and examples of the organisms discussed in questions 8 and 9.  The degree of student collaboration and prior knowledge was impressive!  Students who completed the worksheet early were challenged to construct a 2-trait Punnett Square (exampes below).

Worksheet question 1:

Example #1 of 2-trait Punnett Square:

Example #2 of 2-trait Punnett Square: