A cacher
Teaching resourcesGrade 9 / Other
This section contains documents for teachers to help them design lesson sequences:
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Courses
Various graph paper/markers/squares to print on
Activities
Sangako: algebraic work on the Pythagorean theorem and equation solving
Sangaku: using bisectors
In-depth
Small compilation of open problems, complex tasks and spreadsheet exercises from the 2012 session
Small compilation of open problems, complex tasks and spreadsheet exercises from the 2013 session
Small compilation of open problems, complex tasks and spreadsheet exercises from the 2014 session
29 patent exercises 2017
Some open problems from PISA surveys
Some open problems using geometric tools from the third grade
Unclassified
Areas (surfaces) and volumes (solids) in middle school
ChingMath
by ChingLab©
by ChingLab©