This resource is from Tools4NCTeachers. This file contains a set of 4 tasks (including scoring rubric, recording sheet, and printable materials).  The tasks may be used for instruction or assessment. The focus of these tasks is on using addition and subtraction to solve word problems involving coins.Remix this resource to include addtional tasks. Sharing is caring!

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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 will sort items into groups. They will use
counting to analyze the organized items and answer the question "How many?"

This resource is from Tools4NCTeachers.Students will identify and record mystery numbers with partners.  They will organize quantities of objects into ten ones and some extra ones, developing an understanding of how ten ones and some extra ones can be combined to make a total.  Further, students will tell how two quantities are the same and different (example: One group of seventeen ones verses a group of ten ones in a ten frame and seven ones on the outside of the frame.) 

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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.

This super-helpful chart outlines the mental math strategies students should be exposed to through Number Talks in grades K-5.  Each strategy is linked to a video of a teacher introducing/explaining how to use that stratgy.  This chart is the perfect companion for teachers implementing Number Talks in their classrooms!

This resource is from Tools4NCTeachers.  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.

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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.

This lesson is from Tools4NCTeachers.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.  Printable activity sheets are provided.

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This lesson should occur after students have experiences with perceptual subitizing*.
In this lesson, students use conceptual subitizing** as a flexible and efficient method for finding "how many".

*Perceptual subitizing: instantly recognizing "how many" in a set
**Conceptual subitizing: efficiently finding "how many" by recognizing and combining subgroups within a set.

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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.

This lesson is from Tools4NCTeachers.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. Remix this lesson to include extension ideas or samples of student work.

This resource is part of Tools4NCTeachers.

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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A Number Talk is a brief routine (about 10 minutes) focused around developing flexibility and fluency with numbers. Through regular opportunities to work with dot images and expressions, students develop an understanding of number relationships and structure. This supports the development of early fluency skills.

This PowerPoint contains presentation slides for daily Number Talks, as well as directions and videos for implementation. Teachers may facilitate the Number Talks on these slides, or use them to inspire their own Number Talks based on student need.

This resource is part of Tools4NCTeachers.

A Number Talk is a brief routine (about 10 minutes) focused around developing flexibility and fluency with numbers. Through regular opportunities to work with dot images and expressions, students develop an understanding of number relationships and structure. This supports the development of early fluency skills.

This PowerPoint contains presentation slides for daily Number Talks, as well as directions and videos for implementation. Teachers may facilitate the Number Talks on these slides, or use them to inspire their own Number Talks based on student need.

In this lesson, students use square tiles to create rectangles using the vocabulary rows and columns. They write an equation to represent the total.

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In this lesson, students will identify the number of objects in a group as greater than, less than, or equal to the number of objects in another group, for numbers 1-5. Students will understand the relationship between number labels (such as "4" naming a collection of four) and quantities. They will understand that counting by ones increases the quantity by one more.

This resource is from Tools4NCTeachers.In this lesson, students explore making and breaking cube trains.  Based on the part of the cube train that is shown, the group races to guess the hidden part to develop the concepts of adding and subtracting within 20. 

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In this lesson students use place value strategies to solve story problems related to addition, subtraction, and place value.

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In this lesson students use the open number line and various strategies to solve story problems.