Videos and lessons to help High School students learn how to
identify and describe relationships among inscribed angles, radii,
and chords.
Topics include the relationship between central, inscribed, and
circumscribed angles; inscribed angles on a diameter are right
angles; the radius of a circle is perpendicular to the tangent
where the radius intersects the circle.
Common Core: HSG-C.A.2
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
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