Showing posts with label Geometry. Show all posts
Showing posts with label Geometry. Show all posts
Friday, December 15, 2023

Developing Some Triangle Properties in Grade 9

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Triangle properties are now a part of the grade 9 de-streamed math curriculum and  after doing some circle properties in a couple of classes...
Tuesday, May 9, 2023

Developing Some Circle Properties

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Circle properties are new to the Grade 9 de-streamed math course here in Ontario. Personally, I have always enjoyed these: not just the prov...
Friday, December 10, 2021

The 12 Days of Christmath: Day 8

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Here are the day 8 puzzles for the 12 Days of Christmath. Enjoy! Primary Primary (French) Junior Junior (French) Intermediate
Thursday, December 9, 2021

The 12 Days of Christmath: Day 7

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  Here are the Day 7 puzzles. Enjoy! Primary Primary (French) An interactive version of the above puzzles can be found on  this Mathigon Pol...
Tuesday, December 7, 2021

The 12 Days of Christmath: Day 5

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Here are the Day 5 puzzles for the 12 Days of Christmath. Enjoy! Primary Primary (French) Junior Junior (French) Intermediate You can also t...
Thursday, February 7, 2019

Polygon Angle Sums: Develop, Don't Give.

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A common way to get students to see that the sum of three angles is 180° is to get them to tear the three angles and rearrange them to creat...
Monday, December 3, 2018

Nets of Solids

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One of my favourite things to teach is nets. The way I teach it is very different to the way I was taught it. Basically, I remember having ...