Lesson No: 1 Unit Title: Variation and Classification
Unit
No: 7D
Lesson
Title: Being Different 1 NC
Ref:
Objectives:
MK
—Definition of variation. There is variation between organisms. A link between
two
differences
is called a relationship. Words: organism, variation, relationship.
SK
CK
Lesson
outline:
Starter:
Feedback on quiz
Consider target sheet for Unit D
Discuss differences between organisms (plants and animals)
Introduce the term variation
Activity:
1. Circus of objects/pictures - these could simply be objects from the lab
Pupils observe and describe the differences, identifying the features that could be used to tell them apart.
Discuss their ideas with the whole class.
or
if weather permits take pupils outside to observe variation in living things
Explain the concept of variation having environmental or inherited causes
2. Activity to demonstrate relationships between variations
Choose from a) Holly leaves - W/sheet 7Da/1 or b) Bugs - W/sheet 7Da/3, 7Da/4 and 7Da/5
The results can be plotted (line graph for "Holly Leaves", bar chart for "Bugs") to show the relationships between the variations
Discuss the results and introduce the term relationship.
For "Bugs" relationships = black eyed insects have less than 5 stripes, white eyed insects have more than five stripes, longer abdomen have wider head
Plenary Recap: (i) differences between organisms is variation and (ii) relationships between differences.
Plenary idea = Finish with chocolate bar - you are about to eat it!
Pupils are to sketch graph of length of bar against time
Homework:
Graph from activity 2
Resources:
Variety of photos/objects.
Holly leaves
Worksheets 7Da/l, 7Da/3 and 7Da/4
Graph paper
Risk
Assessment:
Handle holly leaves with care and wash hands after use
Care needed when taking pupils outside