3.1 Multiplication and Division Problem Solving
Content to be learned• Solve word problems involving multiplication and division situations within 100.
• Use strategies to multiply and divide within 100.
• Know from memory products of two 1-digit numbers.
• Solve two-step word problems using the four operations.
• Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
• Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations.
• Represent problems using equations with a symbol/letter for the unknown.
• Use strategies to multiply and divide within 100.
• Know from memory products of two 1-digit numbers.
• Solve two-step word problems using the four operations.
• Assess the reasonableness of answers using mental computation and estimation strategies including rounding.
• Identify arithmetic patterns (including patterns in the addition table or multiplication table), and explain them using properties of operations.
• Represent problems using equations with a symbol/letter for the unknown.
3.2 Measurement—Plane Figures: Area and Attributes
Content to be learned
• Understand that a square with a side length of one unit is called “a unit square” and is said to have “one square unit” of area.
• Recognize area as an attribute of plane figures, consisting of square units.
• Understand that shapes in different categories may share attributes of subcategories.
• Understand that a square with a side length of one unit is called “a unit square” and is said to have “one square unit” of area.
• Recognize area as an attribute of plane figures, consisting of square units.
• Understand that shapes in different categories may share attributes of subcategories.
3.3 Measurement—Area, Including Problem Solving
Content to be learned
• Measure area by counting unit squares.
• Multiply side lengths to find areas of rectangles using real-world and mathematical problems.
• Solve problems in area using repeated addition.
• Find the area of a shape made up of two or more right-angle polygons (rectilinear polygon) by adding the individual areas of each polygon.
• Solve word problems using multiplication involving equal groups, arrays, and measurement quantities, including using a symbol for an unknown number.
• Measure area by counting unit squares.
• Multiply side lengths to find areas of rectangles using real-world and mathematical problems.
• Solve problems in area using repeated addition.
• Find the area of a shape made up of two or more right-angle polygons (rectilinear polygon) by adding the individual areas of each polygon.
• Solve word problems using multiplication involving equal groups, arrays, and measurement quantities, including using a symbol for an unknown number.