Maria Falidas
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Demonstrations, Applets, Activities from Wolfram

Wolfram Alpha Demonstrations Project: Spiral Formations from Iterated Exponentiation

BBC Bitesize Series   Algebra and Geometry for grades 7-9   Revisions, Online Quizzes, Test Prep

GCSE Bitesize Revision - Science Comprehensive coverage of GCSE science topics which have been arranged by exam board specifications. Interactive quizzes to test your knowledge, but don't wait for revision time before you try it out.

KhanAcademy - Videos and Lessons for every Math Level

KHAN ACADEMY: A free world-class education for anyone anywhere. Khan Academy is an organisation on a mission. We're a not-for-profit with the goal of changing education for the better by providing a free world-class education for anyone anywhere.

practice online per skill

IXL Math Practice is a free iPad app from the popular online math practice service, IXL. IXL Math Practice offers hundreds of math practice problems for students in Kindergarten through sixth grade…

Students can create and account and login to submit solutions to open problems. Some activities are interactive. Students can select the level they want to work on.

"The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim,.