## Common Core State Standards for Mathematics

Grade(s) K resources related to the following standard:
Counting and Cardinality
Count to tell the number of objects.
4. Understand the relationship between numbers and quantities; connect counting to cardinality.
b. Understand that the last number name said tells the number of objects counted. The number of objects is the same regardless of their arrangement or the order in which they were counted.

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This interactive Flash applet is a number matching activity for up to ten objects. Students develop mouse skills as they click on a given number of moving fish, which land in their fish bowl. When children decide they have caught the right number, they can check their accuracy. Users may also listen to a counting song.
Activity, Interactive Media
Students can use this interactive Flash applet to practice subitizing and counting groups of objects, to understand the importance of 5 in our base-10 number system, and to learn basic addition facts. In the four included games students construct groups of 5 objects, add groups of objects within 10, and identify and record numbers within 10. Auditory prompts support students with limited reading ability.
Activity, Interactive Media
Grade Level: K, 1
This interactive Flash applet provides a classroom display for demonstrating additions using the fingers on a pair of hands. It is useful for those just learning the sums from 5 and up.
Demonstration, Interactive Media
Grade Level: Pre-K, K
This intereactive Flash applet helps children learn grouping, tally marks, place value, addition, and subtraction. Students help the alien spaceship move cows into corrals by counting by 5s and 10s. They also can apply those grouping skills to practice adding and subtracting two-digit numbers with regrouping. Audio cues and prompts reinforce the user's actions and facilitate counting and the development of math language.
Activity, Interactive Media
Grade Level: K, 1, 2
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
This interactive Flash applet helps students develop number sense and fluency with addition and subtraction facts within 10. Okta hides some bubbles under a shell, and then either adds more bubbles or takes some away. Students determine how many bubbles are left under the shell. Users can choose a specific one-digit starting number or let the applet choose randomly. Users can select addition, subtraction or both.
Activity, Interactive Media
Grade Level: K, 1
In this Peg+Cat interactive game players navigate a treasure map by following directions and counting. Players are given a grid and directions on where to move Peg next on the treasure map, each direction includes a direction and a number of spaces.
Game
Grade Level: Pre-K, K