OnMyOwn Posted November 17, 2015 Share Posted November 17, 2015 My son is using Lial's for algebra 2 and there is a section on solving systems of equations with the matrix method. He is already solid on using the substitution and elimination methods. Can we skip the section on the matrix method or is this something he really needs? Quote Link to comment Share on other sites More sharing options...
MarkT Posted November 17, 2015 Share Posted November 17, 2015 Matrices are important topic to learn - but you could wait until Precalculus to cover them but it may be worthwhile to cover some 2X2 systems now so he can have a another tool in is tool-bag 1 Quote Link to comment Share on other sites More sharing options...
Julie of KY Posted November 17, 2015 Share Posted November 17, 2015 As Mark T said, matrices are important. However many people never get to them before precalc. It is an often ignored topic in algebra 2 classes. I managed to be in engineering numerical methods when the professor started talking about matrices and I had to raise my hand to ask "What's a matrix?". 2 Quote Link to comment Share on other sites More sharing options...
OnMyOwn Posted November 17, 2015 Author Share Posted November 17, 2015 Thanks, Mark and Julie. I will have go ahead and have him do it now since it sounds like he's going to need it eventually anyway. Quote Link to comment Share on other sites More sharing options...
Arcadia Posted November 17, 2015 Share Posted November 17, 2015 Cramer's rule would come in useful later. Might as well have a first go round now in his algebra 2. 1 Quote Link to comment Share on other sites More sharing options...
OnMyOwn Posted November 17, 2015 Author Share Posted November 17, 2015 Cramer's rule would come in useful later. Might as well have a first go round now in his algebra 2. Thanks for the input. Quote Link to comment Share on other sites More sharing options...
RootAnn Posted November 17, 2015 Share Posted November 17, 2015 I wouldn't require it to be mastered, but it is great to have it introduced & practiced before seeing it again in pre-calc. 2 Quote Link to comment Share on other sites More sharing options...
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