Mathematics Kindergarten

Strand: OPERATIONS AND ALGEBRAIC THINKING (K.OA)

Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from (Standards K.OA.1–5).
• Bobbie Bear's Buttons
The purpose of this task is for students to find different pairs of numbers that sum to 4.
• Christina's Candies
This task is meant to be presented as a sequence of questions posed by the teacher to the students. Once a student finds one answer, the teacher then asks him/her to find another. The student is asked to use objects, pictures, or equations to demonstrate his/her thinking.
This task supports students in correctly writing numbers. Because students have to trace the number instead of coloring in a bubble with the number in it or circling the correct number, they gain handwriting practice as well as counting and addition practice.
This task asks students to write equations, not just record sums, when using dice to generate sums.
• IXL Game: Addition with Pictures - Sums up to 10
This game helps the kindergartener understand addition using objects. This is just one of many online games that supports the Utah Math core. Note: The IXL site requires subscription for unlimited use.
• IXL Game: Subtraction with Pictures - Numbers up to 10
This IXL game helps the kindergartener understand subtraction. This is just one of many online games that supports the Utah Math core. Note: The IXL site requires subscription for unlimited use.
• Kindergarten Mathematics Module 4: Number Pairs, Addition and Subtraction to 10
Module 4 marks the next exciting step in math for kindergartners, addition and subtraction! They begin to harness their practiced counting abilities, knowledge of the value of numbers, and work with embedded numbers to reason about and solve addition and subtraction expressions and equations. In Topics A and B, decomposition and composition are taught simultaneously using the number bond model so that students begin to understand the relationship between parts and wholes before moving into formal work with addition and subtraction in the rest of the module.
• Make 9
In this task students are asked to make 9 in as many ways as they can by adding two numbers between 0 and 9.
• Many Ways to Do Addition 1
This lesson should be taught after students have had many experiences solving addition equations. The purpose of this task is not to teach or model the addition strategies. Rather the purpose of this task is make explicit different ways students can solve problems so that they will be able to find the most efficient strategy in any given situation and increase their addition fluency.
• My Book of Five
The purpose of this task is to help students develop fluency with addition facts to 5.
• Pick Two
This task could be used by teachers as an opportunity to gauge their students' ability to write equations and whether they may be ready to begin a discussion about what the equal sign means.
• Quick Images: Visualizing Number Combinations
The educator in this Teaching Channel video uses quick images to identify combinations of 8 - best done in the latter part of Kindergarten. (6 minutes)
• Shake and Spill
The purpose of this task is for students to decompose a number as a sum of two other numbers in more than one way.
• Ten Flashing Fireflies
The purpose of this task is to help students develop fluency with addition facts to 10.
The purpose of this task is for students to practice adding numbers within ten and become familiar with the ten-frame.
• USBE Core Guide for Domain: Operations and Algebraic Thinking (KOA1)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Operations and Algebraic Thinking domain.
• USBE Core Guide for Domain: Operations and Algebraic Thinking (KOA3)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Operations and Algebraic Thinking domain.
• USBE Core Guide for Domain: Operations and Algebraic Thinking (KOA5)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Operations and Algebraic Thinking domain.
• USBE Core Guide for Domain:Operations and Algebraic Thinking (KOA4)
This math guide provides academic vocabulary, instructional strategies, teacher resources, and assessment tasks for the Operations and Algebraic Thinking domain.
• What's Missing?
For this task the teacher shows the student 6 counters (small, flat objects). The student is then asked to close his/her eyes. while some of the counters are hidden under a sheet of heavy paper. When the student opens his/her eyes, s/he determines how many were hidden based on the number of counters still showing.

http://www.uen.org - in partnership with Utah State Board of Education (USBE) and Utah System of Higher Education (USHE).  Send questions or comments to USBE Specialist - Shannon Ference and see the Mathematics - Elementary website. For general questions about Utah's Core Standards contact the Director - DIANA SUDDRETH .
Email:  diana.suddreth@schools.utah.gov

These materials have been produced by and for the teachers of the State of Utah. Copies of these materials may be freely reproduced for teacher and classroom use. When distributing these materials, credit should be given to Utah State Board of Education. These materials may not be published, in whole or part, or in any other format, without the written permission of the Utah State Board of Education, 250 East 500 South, PO Box 144200, Salt Lake City, Utah 84114-4200.