The CK-12 Learning Portal (US) |
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| URL: http://www.ck12.org/ |
| A vast resource platform written by master educators in their respective subject domains (numerous boast Masters and PhDs) which caters largely to learners from the Primary Level all the way to the Pre-University Level; content is both largely interactive and modularized for easier sampling and internalization. The Maths and Science sub-sections will be particularly relevant to Singaporean students.  |
| Note: This has been featured under the Creative Commons Attribution Non Commercial 3.0 Unported (CC BY-NC 3.0 ) License. |
