Students work with the array model for multiplication and investigate factors of numbers. They begin by exploring the dimensions of rectangular arrays. That leads to an investigation of factors, multiples, primes, and squares. Students then are challenged to find the prime factors of a number using factor trees and exponents.
| EXPECTATIONS | |
|---|---|
| Use this list of Expectations to assess students on the key concepts and skills in this unit. | |
| E1* | Represent and solve multiplication and division problems using rectangular arrays. |
| E2* | Determine whether one number is a multiple of another number. |
| E3 | Find the factors of a number. |
| E4* | Identify prime numbers. |
| E5 | Identify square numbers. |
| E6 | Find the prime factorization of a number. |
| E7 | Solve multiplication problems using 0 and 1 as factors (applying the multiplication properties of 0 and 1). |
| E8 | Use turn-around facts to solve multiplication problems (applying the commutative property of multiplication). |
| E9* | Break products into the sum of simpler products to solve multiplication problems (applying the distributive property of multiplication over addition). |
| E10* | Demonstrate fluency with the multiplication facts for the 5s, 10s, and square numbers. |
| E11* | Determine the unknown number in a multiplication or division sentence relating three whole numbers for the 5s, 10s, and square numbers facts. |
| * Denotes Benchmark Expectation | |