METHOD

Identifying and Mapping Variables

Students identify and categorize independent and dependent variables for an experiment or investigation.

The method trains students to recognize and distinguish between what influences a process (independent variables) and what is measured or observed as a response (dependent variables).

1

Explain or remind students of the difference between independent variables (the ones we change), dependent variables (the ones we measure), and controlled variables (the ones we keep constant). You may want to use a concrete example, such as:  How does the amount of water affect the growth of a plant? (Independent variable: amount of water. Dependent variable: plant height. Controlled variables: soil type, temperature, etc.).

2

Provide or let students choose an experiment, investigation, or challenge where they will identify different variables.

3

Students write their variables on cards/notes or mark them digitally.

4

They sort them into three categories: independent, dependent, and controlled variables.

5

Students choose which variables they want to use for their experiments or investigations.

Didactic tips:

  • Students can use brainstorming or anotherBrainstorming method to generate as many ideas for variables as possible. The brainstorming can be done individually, in groups, or with the whole class.
  • Students may use digital tools (e.g., Padlet or Jamboard) to write down and sort their variables.
  • Students can explain why a variable belongs to a particular category, and they can argue for their choice of variables either orally or in writing.
  • The method encourages students to design and subsequently carry out practical investigations or experiments using the selected variables.
  • The method is used, among others, in activity XXX
Tags: Identifying, distinguishing, selecting
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MODES OF ORGANISATION:

  • Individual
  • Pair
  • Group

TOOLS / MATERIALS:

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