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 aspects of the task and its potential use.

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 aspects of the task and its potential use.

This parent guide supports parents in helping their child at home with the 2nd Grade Math content. Within the folder you will access Parent Guide PDFs in FIVE Languages: Arabic, English, Hindi, Spanish, and Vietnamese to help on-going communication with caregivers. 

This resource accompanies our Rethink 2nd Grade Math Operations and Algebraic Thinking 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 video resource will reinforce students' understanding of rows and columns in arrays. Towards the end of the video, factors of 24 are discussed. You may opt not to show this portion of the video as it is not a part of the second grade standard.

Find real life examples of rectangular arrays and express the total as a sum of equal addends.  May go beyond 5 x 5. Create a museum for all second grade classes to view.  This lesson was developed by NCDPI as part of the Academically and/or Intellectually Gifted Instructional Resources Project. This lesson plan has been vetted at the state level for standards alignment, AIG focus, and content accuracy.

Students who work on this task will benefit in seeing that given a quantity, there is often more than one way to represent it, which is a precursor to understanding the concept of equivalent expressions.

Students choose three rectangles and cover them with color tiles. Students record their work explaining how many color tiles they used to partition each rectangle into rows and columns. Lastly, students write an equation to represent the number of color tiles in each row and the total number of squares used to cover each rectangle.

A learning road map is a great way for students and teachers to keep track of standards they have mastered.  This road map is for grade 2 math cluster 3.  It can be printed and placed in a data notebook.  Students would then color in the circle to indicate their level of proficiency.  It could also be used digitally where students would fill in the circle with color.  Road Maps help students take ownership of their learning and help guide instruction for teachers.  This resource was developed as part of a professional learning opportunity funded by the NCDPI Digital Learning Initiative Planning Grant.

In this lesson, students use math drawings to represent equal groups, and relate to repeated addition.

In this lesson, students use math drawings to represent equal groups, and relate to repeated addition.

In this lesson, students compose arrays from rows and columns, and count to find the total using objects.

In this lesson, students decompose arrays into rows and columns, and relate to repeated addition.

In this lesson, students represent arrays and distinguish rows and columns using math drawings.

In this lesson, students solve word problems involving addition of equal groups in rows and columns.

In this lesson, students use square tiles to compose a rectangle, and relate to the array model.

This short video and interactive assessment activity is designed to teach second graders about understanding grouping with illustrations.

Sample Learning Goals
Improve understanding of place value by using different sizes of papers for ones, tens, and hundreds.
Develop mental math strategies when taking apart and putting together numbers.
Use the “make a ten” strategy when counting and doing addition.
Develop a mental model of the basic properties of numbers including commutativity, associativity, and closure.