This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you clearly understand solution concentration concepts in chemistry.

The author is a John Simon Guggenheim Memorial Fellow. This research was supported earlier by the Institute for Advanced Study, National Science Foundation contract G-1974, and the U. S. Educational ...

Fractions are often needed when preparing assignments, reports, or mathematical documents. Microsoft Word provides different ways to write fractions clearly and neatly. Knowing how to use the built-in ...

Word problems try and tell students a story about the math problem in front of them. They are a useful way to connect abstract numbers to concrete situations, so students can learn early on to apply ...

Working memory is like a mental chalkboard we use to store temporary information while executing other tasks. Scientists worked with more than 200 elementary students to test their working memory, ...

We've shown you the entire overscanned frame so you can see the sprockets and the optical soundtrack The film explains how to divide fractions using a systematic approach. It demonstrates the process ...

Microsoft Word provides several ways to create fractions, whether you need them for mathematical documents, academic work, or professional reports. You can type fractions manually, use the built-in ...

1 Department of Education, Faculty of Mathematics and Computer Science, Friedrich Schiller University Jena, Jena, Germany 2 Department of Subject-Specific Education Research, Faculty of Humanities, ...

Emily Sharp and Kunal Nabar collaborate on a puzzle that’s greater than the sum of its parts. By Caitlin Lovinger Jump to: Tricky Clues | Today’s Theme SUNDAY PUZZLE — Will Shortz, in his print ...

Abstract: Word problem solving is one of the most challenging tasks in mathematics for most students. It requires the solver to translate the problem into the language of mathematics. From a study ...