In this lesson, the students are analyzing arrangements of shapes and identifying whether or not they are arranged in an array. This lesson needs to be after the students have already learned the vocabulary associated with arrays and have worked with arrays.

This lesson uses the book The Grouchy Ladybug as a context for telling time.

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Students are asked to solve a real world problem, show their work using pictures, numbers or words, and record a matching equation. A scoring rubric is included. The task may be used for instructional or assessment purposes.

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 part of Tools4NCTeachers.

Students are asked to solve a real world problem, show their work using pictures, numbers or words, and record a matching equation. A scoring rubric is included. The task may be used for instructional or assessment purposes.

This resource is part of Tools4NCTeachers.

Students are asked to solve a real world problem, show their work using pictures, numbers or words, and record a matching equation. 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 will identify whether a quantity of objects in one group is greater than, less than or equal to a quantity of objects in another group. Students will use one-to-one correspondence (or other counting strategies) to answer the question: How many are in one group?

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In this lesson, students compare sets and make equal sets. The lesson should be facilitated at the beginning of a unit on comparing sets once students have been exposed to comparison vocabulary (more, less, greater, fewer).

Lesson may be repeated with amounts closer in range, making it trickier to compare (i.e., 8 & 10).

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In this lesson, students explore place value concepts with two-digit numbers as they build and discuss numbers with more ones than tens and more tens than ones.

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

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This resource provides suggestions for integrating writing into the math block, while working with standard 1.NBT.2.

This file contains a set of word problems of varying problem types (each housed on its own recording sheet). Students discuss solutions orally with partners, then record and justify their solutions.

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In this task, students sort animals into categories of their choice, and solve problems related to the categories. The task may be used for instructional or assessment purposes.

In this lesson students explore arrays through the context of flats of flowers. Students determine the total number of flowers and write an equation using equal addends. Students calculate the total cost of flats of flowers within 99¢ and represent cost with variations of quarters, dimes, nickels, and pennies.

In this lesson students solve a problem where skip counting by 5s and 10s is required to solve a real world problem. Students have some previous practice with skip counting to numbers beyond 100.

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In this lesson, students build pattern block animals inspired by literature, describe and graph the shapes used, and interpret the data by asking and answering questions to develop the concepts of geometry and graphing.

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In this lesson, students will identify how many manipulatives are in a given arrangement without counting each individual object (focus on 1-5). Students will understand the relationship between numbers and quantities, and will explain this relationship as they determine "how many" are in a set.

Note: Perceptual subitizing means to instantly recognize "how many" in a set.

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In this lesson, students use ten frame cards to compose numbers within 100 and compare numbers.

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Arrow cards are a great tool for developing an understanding of place value! In this lesson, students explore making numbers with place value materials and arrow cards. The develop the concept that the digits of a number represent amounts of tens and ones.