Resources and Tools for Elementary Math Specialists and Teachers

Common Core State Standards for Mathematics

Grade(s) K resources related to the following standard:
Counting and Cardinality
Compare numbers.
7. Compare two numbers between 1 and 10 presented as written numerals.

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In this 8-lesson unit students use buttons to explore logical and numerical relationships that form the conceptual basis for understanding addition and subtraction operations. Topics include counting, ordinal numbers (and relative position), classification (attributes), relationships between numbers, addition of sets, commutativity of addition, sums to 10, fact families (including subtraction), three models of subtraction ("take away", comparative, missing addend), and bar graphs. Includes student activity sheets and a link to an online graphing applet.
Activity, Instructor Guide/Manual, Lesson Plans, Unit of Instruction
Grade Level: K, 1, 2
5
(1 Comments)
This iOS app ($) is a collection of 18 activities providing practice with a wide range of early math skills involving number, shape, and measurement.
Activity, Interactive Media, Mobile App
Grade Level: Pre-K, K, 1, 2
0
(0 Comments)
This interactive Flash applet helps students learn to compare and order objects according to size and weight attributes. The text and voice prompts ask students to compare three objects to find the longest, tallest, shortest, and so on. It then asks them to place three objects in a specified order, such as narrowest to widest. Correct responses are rewarded with a cheer and a summary of the results. One concern for users might be the British accents of the readers.
Activity, Interactive Media
Grade Level: K, 1
4
(1 Comments)
In this 6-lesson unit, students explore 5 models of subtraction (counting, sets, number line, balanced equations, and inverse of addition) using connecting cubes. The lesson activities focus on the comparative mode of subtraction as children investigate the relationship between addition and subtraction, write story problems in which comparison is required, and practice the subtraction facts. The lessons include printable student activity sheets, a bibliography of children's counting books, questions for student discussion and teacher reflection, assessment options, extensions, and links to online applets (cataloged separately).
Activity, Lesson Plans, Unit of Instruction
Grade Level: K, 1, 2
5
(1 Comments)
In this 5-minute video Laura Domalik defines number sense and provides instructional strategies for counting and vocabulary, including counting on, counting back, one more than (+1), one less than (-1), basic fact concepts of +1 and -1, and missing addends. She demonstrates a game called Garbage, which can be played alone or with a partner.
Activity, Game, Instructional Strategy, Video
Grade Level: K, 1, 2
0
(0 Comments)
This narrative document describes the progression of Counting and Cardinality and Operations and Algebraic Thinking across the K-5 grade band. It is informed both by research on children's cognitive development and by the logical structure of mathematics. The document discusses the most important goals for elementary students that of understanding and using numbers. The focus is on the basic operations—the kinds of quantitative relationships they model and consequently the kinds of problems they can be used to solve as well as their mathematical properties and relationships.
Reference Materials, Article
Grade Level: K, 1, 2, 3, 4, 5
0
(0 Comments)
This interactive applet helps develop number sense. The user mentally estimates a number that is represented by an arrow on a number line and then checks the estimate by clicking to have the exact number revealed. Users can choose a number range for whole numbers (between 0 and 10, 100, 1000 or 10,000) or decimals (tenths or hundredths between 0 and 1). An optional scale of tick marks provides guidance. The activity does not provide a scoring component.
Interactive Media
Grade Level: K, 1, 2, 3, 4, 5
2
(1 Comments)
This website, devoted to early numeracy skills, includes links to Happy Numbers teacher accounts, student accounts, and blog. A free teacher account provides access to applets that develop conceptual understanding and procedural fluency. The applets are compatible with interactive whiteboards and tablets. With a subscription teachers can create student accounts and individualize assignments. The blog posts further explain how to utilize these applets in the classroom.
Activity, Interactive Media, Community
Grade Level: K, 1, 2
0
(0 Comments)
This interactive Flash applet helps students develop number skills by having them drag clusters of numbers to complete a rectangular grid. Levels vary in content and difficulty, and some feature missing numbers. Skills include counting from 1 to 20, counting from 1 to 100 in several different orientations, and multiplication facts 1-25 and 1-100. A Help screen offers instructions.
Activity, Interactive Media
Grade Level: K, 1, 2, 3, 4, 5
5
(1 Comments)
This 42-page pdf document demonstrates the connections between the CCSS content standards and the mathematical practice standards. It is a compilation of research, standards from several states, instructional strategies, common misconceptions, and examples for each standard at the Kindergarten level. It is intended to help teachers understand what each standard means in terms of what students must know and be able to do. Additional flip books are cataloged separately for grades 1-5.
Instructional Strategy, Reference Materials
Grade Level: K
5
(2 Comments)