**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.

**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.