Announcement: Seminar-Workshop on GeoGebra

The University of the Philippines National Institute for Science and Mathematics Education Development (UPNISMED) will conduct a three-Saturday seminar-workshop on using GeoGebra in the teaching and learning of high school mathematics on August 13, 1320, & 27, 2011 at UP NISMED. This is a first level seminar and will cover the basic tools of GeoGebra. Sample lessons,…

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Twelve definitions of a square

How does mathematics define a math concept? Definitions of concepts in mathematics are different from definitions of concepts in other discipline or subject area. A definition of a concept in mathematics give a list of properties of that concept. A mathematics object will only be an example of that concept if it fits ALL those requirements, not…

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Teaching the meaning of equal sign

Here’s how I sequence my lesson to develop pupil’s understanding of the meaning of the equal sign. Actually the lesson uses the context of the meaning of equal sign to introduce the students to the meaning of variable intuitively. The students enjoyed this lesson and they said they loved the way I made them think. Scaffolding…

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