## 1.1**Number System—Addition and Subtraction, Place Value and Patterns in Addition**

**Content to be learned**

**Solve two-step word problems using addition and subtraction.**

• Represent problems using equations where a letter stands for an unknown quantity.

• Identify arithmetic patterns in addition and subtraction.

• Round whole numbers to 10s and 100s using place value.

-------Scholastic Study Jams:

• Represent problems using equations where a letter stands for an unknown quantity.

• Identify arithmetic patterns in addition and subtraction.

• Round whole numbers to 10s and 100s using place value.

-------Scholastic Study Jams:

__Place Value Video__-----Rounding

__Activities__

**rounding tricks and sayings**

1,2 round down 3,4 round down---1234 round down---

5,6 round up 7,8 round up 5678 round up and 9 also.

1 through 4 stay on the floor

5 through 9 climb the vine

• Add and subtract within 1,000 using strategies and algorithms based on place value and properties of operations.

• Use the relationship between addition and subtraction to solve problems.

• Check the reasonability of solutions using strategies such as mental computation, estimation, and rounding.

• Add and subtract within 1,000 using strategies and algorithms based on place value and properties of operations.

• Use the relationship between addition and subtraction to solve problems.

• Check the reasonability of solutions using strategies such as mental computation, estimation, and rounding.

## 1.2 **Introduction to Fractions and Partitioning Shapes into Parts with Equal Areas**

**Content to be learned**

• Understand a fraction as an equal part of a whole.

• Use fractions to decompose and compose a whole.Explore partitioning a shape into parts with equal area.

• Describe the area of each part as a unit fraction of the whole.

__Identifying fractions parts__

## 1.3**Fractions on a Number Line and a Line Plot**

**Content to be learned**

• Recognize that a whole partitioned in equal parts is composed of unit fractions of equal size.

• Represent fraction

*a/b*on a number line from 0 to 1 by partitioning unit fractions.

• Use a ruler to measure using whole numbers, 1/2 and 1/4 of an inch.

• Make a line plot with horizontal scale marked off as whole numbers, 1/2, and 1/4.

## 1.4**Introduction to Multiplication—Products of Whole Numbers and Area Related to Mulitpication and Addition**

**Content to be learned**

• Recognize the total as the number of objects in a number of groups.

• Solve multiplication word problems involving equal groups and arrays.

• Relate the area of a rectangle to multiplying the side lengths.

• Represent the Distributive Property of Multiplication using arrays.