Adding and subtracting significant figures | Science Toolkit | Khan Academy
typical in the analyzed sample
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Is this video typical of the channel?
This video looked representative of the rest of the sample — nothing set it apart from its neighbours.
Findings that cite this video
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Commercial pressure
None foundSelling, undisclosed promotion, gambling mechanics, and scams.
The channel is a non-profit and explicitly states its courses are 100% free; it asks for donations but does not pressure viewers to buy products.
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External contact
LowPushes viewers to chat, message, or meet somewhere off-platform.
Links are provided to the official Khan Academy website for further practice and donations.
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Educational value
HighWhether the channel teaches something. Descriptive, not a risk — a high level here is positive.
The channel provides high-quality, structured educational content on math and physics.
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Consistency
HighHow alike the sampled videos are. Descriptive, not a risk — high means the sample predicts the rest of the channel well.
Consistent branding, instructional style, and non-profit messaging across all sampled videos.
Screening note
Educational science toolkit content from a reputable source.
About this evidence
- Screening
- Complete
Title, thumbnail, and publication date come from YouTube. The findings are our conclusions. How we do this.