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Radian and degree | Unit circle definition of trig functions | Trigonometry | Khan Academy
By Khan Academy
This video explains what a radian is and how we determine the radian measure of an angle. The key point here is that the radian measure of an angle is the length of the arc (in radius lengths) cut off by that angle (if the angle's vertex is on the center of the circle). You may ask: Won't the size of the circle affect the radian measure of an angle? A key feature of circles is that they are all similar (and thus, proportional). When we account for their larger size, we take into account the larger radius. As a result, the radian measure is the same for all circles (since the radian measure is how many radius lengths long the arc is).
Circles - Area, Circumference, Radius & Diameter Explained!
By The Organic Chemistry Tutor
This basic geometry video tutorial explains how to calculate the area and circumference of a circle given it's radius and diameter. This video contains a few examples with word problems. This video also explains how to calculate the circumference given the area, and how to calculate
07 - Equation of a Circle & Graphing Circles in Standard Form (Conic Sections)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
01 - Conic Sections: Ellipses - Graphing, Equation of an Ellipse, Focus - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Building Scaled Picture Graphs: 3.MD.3
By TenMarks Amazon
Students learn the parts of a picture graph to build scaled picture graphs based on given data.
06 - Equations & Definition of Conic Sections - Circle, Ellipse, Parabola & Hyperbola
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
05 - Intro to Conic Sections (Circles, Ellipses, Parabolas & Hyperbolas) - Graphing & More.
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
04 - What is the Unit Circle? Angle Measure in Degrees, Reference Angles & More.
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Circle Time Tips & Techniques for Homeschooling Preschool & Kindergarten the Montessori Way
By Learn And Play Montessori School
Circle Time is a wonderful way to start your child's day. Miss Emily shares her tips, techniques, and secrets as to how to use Circle Time for homeschooling preschool / kindergarten the Montessori way. For example, you should start with Circle Time each and every day. You can recap what you've
05 - Quadratic Systems of Equations (With Lines, Circles, Ellipses, Parabolas & Hyperbolas)
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
Geometry Introduction - Basic Overview - Review For SAT, ACT, EOC, Midterm Final Exam
By The Organic Chemistry Tutor
08 - Calculate Sin, Cos & Tan w/ Unit Circle in Radians - Part 1
By Math and Science
Quality Math And Science Videos that feature step-by-step example problems!
2nd Grade Math Compilation
By
2nd Grade math is fun with these learning videos! Each lesson can help students with word problems, math games or help prepare for a test! Great for a review of 2nd grade or for an introduction!