Parsing algebraic expressions is always a pain. If you need to compute, say, 2+4*2, the answer should be the same as (2 + (4 *2)), not ((2 + 4) * 2) — in other words, the right answer is 10, not 12.

Curriki, a global K-12 community for creating, sharing, and finding open learning resources, has launched a free Algebra 1 course aligned with the Common Core State Standards. Available online, this ...

In algebra, letters are used when numbers are not known. Algebraic terms, such as \(2s\) or \(8y\), leave the multiplication signs out. So rather than \(2 \times s\), write \(2s\), and rather than \(8 ...

Students of Grade 7 were given a test followed by individual interviews; at the end of Grade 8 the same students were subject to an analogous test and interviews. Each student had to simplify certain ...

https://doi.org/10.5951/mathteacher.112.6.0432 • https://www.jstor.org/stable/10.5951/mathteacher.112.6.0432 Copy URL ...