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The Story of the Lodestone

Posted by Greg MacDonald on

The Story of the Lodestone

Long ago, the ancient Chinese navigated across trackless deserts because they knew that a type of stone, now called lodestone (from the Old English word, lãd= course) or magnetite (from Magnesia, in Thessaly, Greece, where deposits of magnetite were found) would align itself in an approximately north/south direction when suspended from a thread.  Some ancient Greeks believed that there were magnetic islands, made of lode-stone, that could attract the nails and other iron objects in a ship.  Vessels that disappeared at sea were said to have been pulled helplessly to these islands.  (There was even a story, not nowadays believed to...

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The Conjunctive Adverb

Posted by Greg MacDonald on

The Conjunctive Adverb

Compound sentences can be formed by combining simple sentences using coordinating Conjunctions (FANBOYSFor, And, Nor, But, Or, Yet, So), by Correlative Conjunctions (either ... or, neither ... nor, etc.), or by semi-colons.

Independent clauses may also be joined by Conjunctive Adverbs to form a Compound Sentence.  A conjunctive adverb may be identified by the punctuation accompanying it ... 

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The Story of the Polgár Sisters

Posted by Greg MacDonald on

The Story of the Polgár Sisters

The incredible story of the Polgár sisters illustrates the potency of Montessori principles and practices. The Montessori Method works, even when it is unknowingly applied by people who've never heard of Montessori!

Image Credit:  By R. Cottrell - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=28504030

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The Phases of an Album Chapter

Posted by Greg MacDonald on

The Phases of an Album Chapter
When I talk about delivery in the classroom to students, or to Guides whom I am consulting, one approach that I introduce is the idea of The Phases of an Album Chapter.  This approach is valid for most chapters of most elementary albums ...

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Preliminary Presentation for Non-Decimal Bases

Posted by Greg MacDonald on

Preliminary Presentation for Non-Decimal Bases
This is a presentation that can precede "Counting in Different Bases".

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