Pros:

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• Free (or pay-by-donation)

• Multiple languages available

• Corresponding video lessons

• Allows for community discussion

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Cons:

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• Lessons do not directly correspond to Alberta Program of Studies

• Missing multiple topics from Physics 30

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Pros:

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• Many community members (over 106, 000)

• Many experts part of community

• Solely designed for Q & A

• Free

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Cons:

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• Many topics too advanced for high school students

• No equation builder built into text so difficult to comprehend algebraic help

 

Pros:

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• Verified and vetted subject matter experts available

• Mobile app

• Vast majority of Alberta Program of Studies covered

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Cons:

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• Only provides 1-on-1 communication

• Costs money

• Certain topics available not included in Alberta Program of Studies