WELLINGTON, Colo. — Throughout 2025, the viral slang term and meme “6-7” became one of the most repeated phrases among young kids. People say they’ve heard it everywhere. Now, this simple social media ...

The Monthly publishes articles, as well as notes and other features, about mathematics and the profession. Its readers span a broad spectrum of mathematical interests, and include professional ...

Abstract: A high-isolation fully integrated 26.5-36.2-GHz frequency-division duplex (FDD) transmit-receive (T/R) duplexer (DUX) front-end module, containing DUX, power amplifier (PA), and low-noise ...

The 2023 European Society of Hypertension (ESH) and 2017 American College of Cardiology/American Heart Association (ACC/AHA) hypertension guidelines both emphasize proper blood pressure (BP) ...

Thinking about numbers using frames of 10 can be a helpful way to learn basic number facts. The four games that can be played with this applet help to develop counting and addition skills. (This ...

Explore Grade 4 math concepts with this free resource available for download and streaming on the Internet Archive.

Explore the revised 1918 edition of "Kindergarten Chats" and other writings by Louis H. Sullivan, available for free download and streaming.