2.1 Measurement—Time and Mass
Content to be learned
• Tell and write time to the nearest minute.
• Solve problems involving addition and subtraction of time intervals in minutes
• Solve one-step word problems using addition and subtraction by measuring and estimating mass and volume of objects using standard units.
• Tell and write time to the nearest minute.
• Solve problems involving addition and subtraction of time intervals in minutes
• Solve one-step word problems using addition and subtraction by measuring and estimating mass and volume of objects using standard units.
2.2 Equivalent Fractions
Content to be learned
• Recognize fractions as numbers. • Understand and determine if two fractions are
equivalent using visual models.
• Express whole numbers as fractions.
• Recognize fractions that are equal to whole numbers.
• Generate and recognize simple equivalent fractions.
• Compare two fractions with same numerator or denominator by reasoning about their size.
• Use symbols <, >, and = and visual models to represent comparisons of fractions.
• List equivalent fractions and explain, using visual models.
• Understand that when comparing fractions the whole must be the same.
• Recognize fractions as numbers. • Understand and determine if two fractions are
equivalent using visual models.
• Express whole numbers as fractions.
• Recognize fractions that are equal to whole numbers.
• Generate and recognize simple equivalent fractions.
• Compare two fractions with same numerator or denominator by reasoning about their size.
• Use symbols <, >, and = and visual models to represent comparisons of fractions.
• List equivalent fractions and explain, using visual models.
• Understand that when comparing fractions the whole must be the same.
2.3 Using Commutative and Distributive Properties
Content to be learned
•Apply properties of operations as strategies to multiply.
• Multiply within 100.
• Multiply one-digit whole numbers by multiples of 10 in the range 10–90, understanding that as the one-digit number increases, the total product increases by 10, relatively.
• Know from memory products of two 1-digit numbers.
• Fluently add and subtract within 1,000 using strategies and algorithms based on place value and properties of operations.
•Apply properties of operations as strategies to multiply.
• Multiply within 100.
• Multiply one-digit whole numbers by multiples of 10 in the range 10–90, understanding that as the one-digit number increases, the total product increases by 10, relatively.
• Know from memory products of two 1-digit numbers.
• Fluently add and subtract within 1,000 using strategies and algorithms based on place value and properties of operations.
2.4 Relationships Between Multiplication and Division
Content to be learned
• Solve division equations with whole numbers having no remainders.
• Solve multiplication and division equations with an unknown number (fact families).
• Understand division as an unknown-factor problem.
• Understand the associative property of multiplication.
• Solve division equations with whole numbers having no remainders.
• Solve multiplication and division equations with an unknown number (fact families).
• Understand division as an unknown-factor problem.
• Understand the associative property of multiplication.