In this activity, Franklin goes to the store to purchase supplies to complete a painting job. He works with Laverne to estimate the cost of materials using rounding and uses that estimate to calculate his rate of pay based on how long the job takes him.

Students partner up and take turns guessing each others decimals. Students must read the decimals correctly and match them up with the correct decimal in standard form.

The area model can be used when multiplying any two numbers, including decimals. This video demonstrates how to multiply using the area model when a decimal is involved.

Students will observe the base ten representation and choose the correct numeric representation in this interactive.

This short video and interactive assessment activity is designed to teach second graders about representing numbers in expanded form i.

Students will determine the value of the base ten blocks and pop the correct bubble in this interactive. Get the answer right and a dolphin will jump over your boat, get the answer wrong and a shark takes a bite out of your boat.

This resource is from Tools4NCTeachers. This file contains a set of 4 tasks (including scoring rubric and student recording sheet).  The tasks may be used for instruction or assessment.Remix this resource to include student work samples or addtional tasks.

This resource is from Tools4NCTeachers. In this lesson, students develop strategies for adding 3-digit numbers, with a focus on adding in chunks.  Students build this strategy of adding in chunks by mentally adding 10 and 100 to numbers, and adding on the number line. Remix this lesson to include extension activities such as math stations.

The Family Letters are intended to be sent home at the beginning and middle of the cluster. They explain big ideas of the cluster using family-friendly language. Families can also find tips for working with their children at home, digital games, videos, and books. This file contains both English and Spanish versions of the Family Letters.

This resource is part of Tools4NCTeachers.

In this task, students are faced with a real world comparison situation involving coins. A scoring rubric is included. The task may be used for instructional or assessment purposes.

This resource is part of Tools4NCTeachers.

In this lesson, students explore strategies for counting handfuls of cubes to develop the concept of place value.

This resource is from Tools4NCTeachers.  this lesson, students will count items in order to determine how many groups of tens are needed to make 100, 200, 300...  The students will determine the pattern of how many tens make a hundred and use that pattern to determine how many tens are needed to make 400, 500, 600, 700, 800, and 900.  Lesson comes with printable materials.  Remix this lesson to provide extension ideas or samples of student work. 

This resource is part of Tools4NCTeachers.

In this task, students are faced with a real world comparison situation. A scoring rubric is included. The task may be used for instructional or assessment purposes.

This resource is from Tools4NCTeachers.Students will play a game to practice reading and writing numbers within 1000 in different forms. They will use standard form, base-ten numerals (blocks), word form, and expanded form. A printable gameboard and game cards are provided.

This resource is part of Tools4NCTeachers.

In this lesson, students strategically create and order two-digit numbers on their game boards to develop the concept of place value.

This resource is part of Tools4NCTeachers.

This task assesses student's understanding of place value with teen numbers. Task may be used for instructional or assessment purposes.

This resource if from Tools4NCTeachers.In this lesson, students use number cards to build numbers and write them in both standard and expanded form.  Printable materials, suggestes for differentiation, and assessment probes are provided.  Remix to share ideas for turning this lesson into a math station or game. 

This resource is from Tools4NCTeachers. In this lesson, small groups of students play a game where they spin 3-digit numbers, build them using arrow cards, and compare the numbers.  Several extension activities and math centers are shared in this lesson. 

This resource is from Tools4NCTeachers.In this lesson, students explore 700-799 by drawing cards and placing them correctly on a hundreds “sheet” labeled with only the numbers 700 and 799. 

This resource is from Tools4NCTeachers.In second grade, students learn to add and subtraction using strategies based on place value and number relationships.  They use a variety of representations such as base ten drawings and number lines.  Second graders do not learn the standard algorithm.  This resource outlines second grade addition and subtraction strategies