Multiplication is essentially repeated addition, or growing numbers by doubling, tripling, quadrupling, and so on. This unit presents mental models and strategies that help students learn and review the concept of multiplication. Students explore multiplication using arrays, partial products, doubling methods and the standard algorithm to solve numerical and word problems. Students will multiply whole numbers and simple decimals by base ten exponents (i.e. .3 x 103).

In this unit, students are encouraged to write letters to family and friends about a book they are reading. In the letters the will apply the skills learned in this unit, including how to structure a letter, punctuating titles of books and short stories, using possessives (in reference to the characters or ideas in the book), contractions and addressing an envelope. Don’t forget to request a response - getting a personal letter in the mail in this electronic age can be a thrill!