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金字塔二相邻平面的夹角（底面为长方形）
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微分的定义
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Methane CH4 Structure
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探索活动：正弦定律
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四面体两侧面的夹角
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金字塔两侧面 (讲义第六题)
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金字塔两侧面 (讲义第五题)
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THE DEFINITE INTEGRAL
GeoGebra Institute of WuXi
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数列的极限
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定积分与黎曼和
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26.2 函数的增减性
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习题3c第七题（奇怪的水坝）
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Exterior Angles of Polygons
Anthony OR 柯志明
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Sunflowers are Irrationally Pretty
Ben Sparks
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Planar Graphs
Franz Rittenschober
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Classifying Quadrilaterals
Anthony OR 柯志明
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Exploring Rocket Motion
Peter Weisswange
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Calculate Mean Absolute Deviation (M.…
Mathguru
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Inverse functions
Malin Christersson
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Expanding and Reducing Fractions
Anthony OR 柯志明
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Adding Fractions with Unlike Denomina…
eas121
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Adding numbers to 20
Damir Belavić
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Base Ten Blocks - Counting from 0 to 99
weinbergmath
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Telling time from clocks
Anthony OR 柯志明
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Protractor Quiz
Anthony OR 柯志明
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Geometry - Points of Concurrency
canhalt_1
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Dot Plot Tool
cmodom
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1.2.2 Rotations as Art - Class Quilt
Jennifer Silverman
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Upper and lower Riemann Sums
Dr Adrian Jannetta
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Slope field plotter
Dr Adrian Jannetta
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Mathematical optimization: Building a…
Juan Carlos Ponce Campuzano
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Unit Circle and the Trigonometric Fun…
ayoob
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Reflections of Functions
David Smith
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Chinese Match Puzzles 2 (7 puzzles)
Anthony OR 柯志明
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Quadratic Quiz
Sparky
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Viviani's Theorem
Alex CHIK
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Section d'un pavé droit
Nicolas ERDRICH
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Binomial Distribution with Normal and…
Micky Bullock
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Test yourself: Reflection
Michael Borcherds
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Lights Out Game - with target patterns
Jon Ingram
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Prostopadłościan
Jerzy Mil
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Area of Circles
Anthony OR 柯志明
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