Classifying: Kpli Science Minor Lesson Notes By Sylvester Saimon Simin Smd, Kttc

CLASSIFYING KPLI SCIENCE MINOR LESSON NOTES BY SYLVESTER SAIMON SIMIN SMD, KTTC

WHAT? • Classifying is a process of grouping objects according to certain characteristics for a purpose. • The basic requirement of any system of grouping is that it must be useful • Classification is the process skill central to concept formation.

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HOW? • Binary classification system – The sets of objects is divided into two subsets on the basis of whether each object has or does not have a particular property.

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BINARY CLASSIFICATION - example

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BINARY CLASSIFICATION Observable Properties

Yes

No

1, 5, 6

2, 3, 4

1, 4

2, 3, 5, 6

3. Body with scalloped margin

6

1, 2, 3, 4, 5

4. Striped body

2

1, 3, 4, 5, 6

5. Body with circles

3

1, 2, 4, 5, 6

6. ¾ of tail coiled

4

1, 2, 3, 5, 6

1. Speckled body 2. Round body

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HOW? • Multi-stage classification – Objects are classified in a binary way repeatedly creating a hierarchy of sets and subsets

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Multi-stage classification - Example

Original Set 1, 2, 3, 4, 5, 6 Speckled Body 1, 5, 6 Body Not Round 5, 6

Body With Scalloped Margin 6

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Body Not Speckled 2, 3, 4

Round Body 1

Body Without Scalloped Margin 5

Striped Body 2

Circle On Body 3

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Body Not Striped 3, 4

No Circles On Body 4

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HOW? • Serial ordering – Ordering objects according to the extent to which they display a particular property. – Depending upon the purpose of the classification, objects may be ordered on the basis of size, shape, color, or a variety of other characteristics.

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Serial ordering - Example

Shortest

Bob

Ann

Joe

Bill Amy Melissa Ashley Sam

Tallest

Height

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THOUGHT-STARTER FOR CLASSIFYING • How is this object like that one? • How are these objects alike? How are they different? • Sort these items according to their properties. • Put these objects in order and explain the order. • Group these objects by color (size, texture,smell, taste, sound, etc) • Classify this set of objects in as many different ways as you can. Sep 8, 2009

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ACTIVITY • List all classifying activities in the Primary Science School Curriculum. You need to have the Curriculum Specification for Year 1 – 6 to do this. • Select one activity and explain how you are going to teach the skill of classification to your students.

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