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A maths tutor on TikTok has gone viral after he revealed a hack for quickly and easily multiplying by nine. Brady Kelly (@bradyyourtutor) from Orlando, Florida, opens the video boldly saying: ...

The objective of this study is to examine how student teachers use proportional number line in teaching multiplication and division of fractions in context of lesson study and open approach. Teaching ...

They found that students assigned to teachers who used more mathematical vocabulary in their lessons made greater progress ...