This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Plot the following numbers on the number line. 456 \ \ 983\ \ 938 \ \ 425 \ \ 220 \ \ 202\ \ 799 Choose eight pairs of numbers from those you plotted o...

Can you create a robot or device that can communicate an answer to your partner? Students code a robot to communicate the answer to comparing two three-digit or two two-digit numbers to their partner. Students will need to complete a key to determine how they’re representing greater than, less than, and equal to.

This parent guide supports parents in helping their child at home with the 2nd Grade Math content.

This resource accompanies our Rethink 2nd Grade Math Number & Operations in Base Ten unit. It includes ideas for use, ways to support exceptional children, ways to extend learning, digital resources and tools, tips for supporting English Language Learners and students with visual and hearing impairments. There are also ideas for offline learning. 

This unit was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 2nd Grade Math for Number & Operations in Base Ten.

The Common Core State Standards (CCSS) videos are designed to support states, schools, and teachers in the implementation of selected math standards. Each video is an audiovisual resource that focuses on one or more specific standards through examples and illustrations geared to enhancing understanding. The intent of each content-focused video is to clarify the meaning of the individual standard rather than to be a guide on how to teach each standard, although the examples can be adapted for instructional use.

In this lesson, students first listen to the story Bunny Money. They then work in pairs to add sets of three single-digit numbers to determine the value of their savings goals and total savings. They compare the values to determine whether they have saved enough to meet their savings goals. Finally, students calculate the difference between the value of their savings goals and total savings.

This short video and interactive assessment activity is designed to teach second graders about comparing values of multiple numbers within a set.

This short video and interactive assessment activity is designed to teach second graders about mixed operations: selecting the correct sentence.

This short video and interactive assessment activity is designed to teach third graders about word problems that compare values.

In this assessment task, students use the greater than, less than or equal to symbols to solve a problem and explain their thinking in words, pictures or numbers.

This short video and interactive assessment activity is designed to teach second graders about comparing and writing decimal inequalities in word problems.

In this assessment task, students show their understanding of place value and explain their thinking.

For this task, students compare numbers that are identified by word names and not just digits. Students must think carefully about the value of the numbers due to the different order numbers.

In this task students are required to compare numbers that are identified by word names and not just digits. The order of the numbers described in words are intentionally placed in a different order than their base-ten counterparts so that students need to think carefully about the value of the numbers.

In this task students are required to compare numbers that are identified by word names and not just digits. The order of the numbers described in words are intentionally placed in a different order than their base-ten counterparts so that students need to think carefully about the value of the numbers.

For this task, students use the digits 2, 5, and 7 to create 3-digit numbers to determine the greatest number they can make and the smallest number.

This task helps students understand the relationship between digit placement and the value of a number.

In this lesson, students compare two three-digit numbers using <, >, and =.

In this lesson, students compare two three-digit numbers using <, >, and = when there are more than 9 ones or 9 tens.