Geogebra App on Maximum Power Theorem

 GeoGebra link: This simulation demonstrates the power dissipated in a variable resistor given that the battery has an internal resistance (made variable in this app as well). Since the power dissipated by the resistor is given by and the current is given by I=ER+r , P= E2×R(R+r)2=E2r2/R+R+2r This power will be a maximum if the

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DeLight Version 2

I modified "DeLight", the board game that I designed a few years back into a worksheet version (for small groups) as well as a powerpoint version (that teacher can facilitate as a class activity, pitting half the class against another). Worksheet: DOWNLOAD Slides: DOWNLOAD The objectives of the game is to reinforce concepts related to

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Concrete to Abstract

As I was teaching the use of the potential divider equation to my IP4 (Grade 10) students last week, I approached it by teaching the rules first before showing worked examples. Thereafter, as some students remained confused, I merely reverted to explaining the rules. Eventually, I resorted to simplifying the equation by substituting simple numerical

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