| What will be covered in Unit 1? Understanding the content and organization of the Math Journal and Student Reference Book. A review of rectangular arrays, and using multiplication number models to represent such arrays. A review of the meanings of factor and product; finding all factor pairs for a number; and assessing and developing instant recall of the multiplication facts. Relating factors and divisibility. Testing for divisibility by using a calculator; and the introduction of divisibility tests for division by 2, 3, 5, 6, 9, and 10. The classification of whole numbers as prime or composite numbers. Representing square numbers as square arrays and as numbers written with exponents; and introducing the exponent key on a calculator. Finding the square root of a square number; and using the square root key on a calculator to find the square root of any positive number. Reviewing name-collection boxes; and representing numbers as products of factors (factor strings) and as products of prime factors (prime factorization). |