Unit 2: Exploring Multiplicative comparison, Factors & Multiples,  Area & perimeter

Content Standards

NC.4.OA.1 Interpret a multiplication equation as a comparison. Multiply or divide to solve word problems involving multiplicative comparisons using models and equations with a symbol for the unknown number. Distinguish multiplicative comparison from additive comparison.

NC.4.OA.4 - Find all factor pairs for whole numbers up to and including 50 to: 

• Recognize that a whole number is a multiple of each of its factors. 

• Determine whether a given whole number is a multiple of a given one-digit number. 

• Determine if the number is prime or composite.

NC.4.MD.3 - Solve problems with area and perimeter. 

• Find areas of rectilinear figures with known side lengths.  

• Solve problems involving a fixed area and varying perimeters, and with a fixed perimeter and varying areas.  

• Apply the area and perimeter formulas for rectangles in real world and mathematical problems.  

Skills/Strategies

Students will be able to:

• Find all factor pairs for whole numbers up to and including 50

• Determine whether a given whole number is a multiple of a one-digit number

• Determine if a number is prime or composite

• Multiply to solve word problems involving multiplicative comparisons

• Solve problems involving area and perimeter, including problems involving a fixed area and varying perimeters, and a fixed perimeter and varying areas

• Solve two-step word problems involving the four operations with whole numbers