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Table 5 Some representative sentences written by students at M1

From: Effect of a STEM approach on students’ cognitive structures about electrical circuits

Association

Example of sentence (control and experimental group)

ELECTRIC CURRENT–Electrical shock

Electric shocks caused by ELECTRIC CURRENT are dangerous and deadly

ELECTRIC CURRENT–Electrical plugs

In the electrical plugs we have ELECTRIC CURRENT that serves to charge the mobile phones and my tablet

ELECTRIC CURRENT–Light/Lighting

My room has lighting because the ELECTRIC CURRENT is in the lamp

ELECTRIC CURRENT–Energy

The ELECTRIC CURRENT relates to the energy we have at home and at school

The ELECTRIC CURRENT decreases as energy is consumed

VOLTAGE–Electrical shock

A high VOLTAGE can give an electrical shock

RESISTANCE–Stop

RESISTANCE is a barrier that stops

BATTERY–Energy

The BATTERY gives constant energy to toys

BATTERY energy is consumed for the flashlight to give light

VOLTAGE–Danger

The VOLTAGE poses a danger of death

ELECTRIC CURRENT–Sparks

The short circuit spark caused by a large ELECTRIC CURRENT can lead to a fire

  1. Since the sentences written by students belonging to the control and experimental group were similar, it was decided to consider them as being representative of both groups