Lesson 2: Life cycle of a mammal

Arrange the class into the same groups from the asexual reproduction cutting activity in Lesson 1: Life cycles and reproduction in plants. Give each group a 30 cm ruler, the tablet they used to photograph their cutting and the Activity: Stem cutting data table (one each) from Lesson 1: Life cycles and reproduction in plants.

Demonstrate how to measure plant root growth:

1. Take the mint out of the water and pat dry gently with a paper towel.

2. Lay the plant next to the ruler so the 0 cm line of the ruler is lined up with the end of the stem/start of the roots.

3. Gently pull the roots straight and measure their length in millimetres (mm).

Instruct the groups to collect their cutting, take a new photograph and measure any growth. Remind them to record week one in the data table.

Ask the groups to discuss: