The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Content crawled via the Wayback Machine Live Proxy mostly by the Save Page Now feature on web.archive.org.
Liveweb proxy is a component of Internet Archive?s wayback machine project. The liveweb proxy captures the content of a web page in real time, archives it into a ARC or WARC file and returns the ARC/WARC record back to the wayback machine to process. The recorded ARC/WARC file becomes part of the wayback machine in due course of time.
Elementary Flash Cards helps students practice their math skills in addition, subtraction, multiplication and division, and mixed math problems. Problems are intentionally kept simple.
For even easier problems, tell Alexa "easy" when choosing the operation. This will limit those problems to a maximum factor of 10. For example, "Easy addition." Mixed problems will always be "normal" difficulty.
During the question phase, you can ask Alexa to "Say that again," or "Repeat the question." To answer a math problem, either say the answer, say "skip", or say "I don't know." You can also ask Alexa for help.
Let's you choose how many problems (up to 20) and lets you choose the operation. Even has an easy mode that makes the problems simpler. Alexa even tries to be funny when you get them right. My 2nd grader loves it!