Today we’re on to another topic already! Unit 6 focuses on learning the standard algorithm (or shortcut) for multiplication and division. We then use those skills in real-world problems. Our lesson today recaps our objectives, how estimating helps in multiplication, and how the partial algorithm (“box method”) connects to the standard algorithm.
Tag Archives: arrays
Prime, composite, and arrays
Today we continued learning about prime and composite numbers and how they can be represented visually in arrays. We noticed the interesting phenomenon that prime numbers can be represented by two arrays (think a table with rows and columns) where each array has only one column or one row! Composite numbers have more array configurations.
Mr. J’s Math Class 