Grade 2 Curriculum


Learn more (pdf) about the units, the math, the components, and some of the games, activities, and contexts at second grade.

Math Content

Unit Summaries contains a brief summary of the mathematical content of each of the units in the Grade 2 sequence.

Math Content describes the mathematical work of Grade 2 in each of the following content areas: Counting and the Number System and Addition and Subtraction (both listed under Number and Operations-Whole Numbers), Data Analysis, Fractions, Measurement, Patterns, Functions, and Change, and Geometry. The mathematical emphases and benchmarks for each content area are also included.

Scope and Sequence contains the mathematical emphases, math focus points, and assessed benchmarks for each of the units in the Grade 2 sequence.

Sample Sessions

Explore a Session from the sixth Grade 2 unit, How Many Tens? How Many Ones?: Addition, Subtraction, and the Number System 3. All of the materials referenced in the Session—Resource Masters, Student Activity Book pages, Student Math Handbook pages, Teacher Notes and Dialogue Boxes—are also included.

Close to 20 Game

Play Close to 20, a grade 2 game that asks players to use 3 of 5 cards to make a sum as close as possible to 20. A player’s score is the distance the sum is from the target number.

Grade 2 Components

Learn about the various components that make up the Core Curriculum Package in Grade 2, including: materials available in Spanish; materials included in the Manipulatives Kit, the Completer Kit, and the Cards Package at Grade 2; and additional, optional resources.

Classroom Cases

Teacher-written Classroom Cases about supporting the range of learners in 2nd grade are available for download here and here. The latter deals specifically with problems about 10s and 1s.


This document lists the Grade 2 units, the number of sessions in each one, and the total number of sessions in the Grade 2 curriculum. It also contains information about the expectations for the number of minutes spent per day on mathematics.

Investigations and the CCSS

Learn more about Investigations and the Common Core State Standards at second grade. The sample Session, How Many Hundreds?, is one of several Sessions that focus on the place value of three-digit numbers and on adding or subtracting 10 or 100 to/from a given number. It is designed to be incorporated at the end of the sixth Grade 2 unit, How Many Tens? How Many Ones?: Addition, Subtraction, and the Number System 3. The instructional plans layout Session-by-Session changes to each Investigation in that unit.

Classroom Video

What does an Investigations classroom look and sound like? The videos below provide images of teachers and students at work in a range of second grade classrooms.

The class collects data about the number of pockets each student is wearing. Then they figure out how many pockets the class is wearing altogether.

A student describes her strategy for solving 22 + 10. The teacher talks with her about what she recorded.

One student uses a number line to show how he solved 39 + 22, using the strategy of keeping one number whole and adding the other number on in parts.

One student shares his strategy for solving 69 + 87.