A series of study sheets or study guides for various major tests.
Alcumus by the Art of Problem Solving, AKA AoPS
(a great mix of interesting/challenging math problems by subject and topic… NOT rudimentary practice, but for students who want an extra challenge)
Desmos
(online function graphing resource)
Engage NY
(detailed curriculum and worksheets for grades K-12 math and ELA and a collection of past NY State Tests in ELA and Math)
Euclidea
(puzzle game for learning Euclidean Geometry constructions… also available as a smartphone app)
JMAP
(a website organizing every math Regents problem ever given, specifically on this page)
Khan Academy
(videos and automated practice problems)
Ken Ken
(puzzle game that combines logic and arithmetic… also available as a smartphone app)
Math Contests
(an extensive collection of problems from past competitive math exams, curated by AoPS Online)
Photomath
(smartphone app that can simplify expressions and solve equations)
Regents Exams
(a collection of all past NY State Regents Exams in all subjects)
Sumplete
(another math puzzle game)
Why Do Americans Stink at Math?
(July, 2014: A New York Times article looking at the failings and successes of Math Education around the world)
(2002: Paul Lockhart, a Math teacher at Brooklyn’s Saint Ann’s School, argues that Math is an art-form and should be taught as such)
(MIT’s visual programming environment for kids)
(guided tutorials in HTML/CSS, Javascript, jQuery, Python, Ruby, PHP, and APIs)
(links to many different educational programming sites available online)
(great free and ad-free online resource for touch-typing)
(animated educational videos on a wide range of topics)
(series of math texts for advanced students in need of a challenge… also a great resource for preparing for math contests) Recommended for middle school and up
(a guided tour of creative mathematical thinking as it relates to various topics in geometry and algebra… a wonderful introduction to the notions of mathematical rigor in proof and problem solving) Recommended for motivated high school students looking for a challenge or new perspective on mathematics