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• NC.Math.1.OA.8 - Determine the unknown whole number in an addition or subtraction equat...
• NC.Math.1.OA.8 - Determine the unknown whole number in an addition or subtraction equat...
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This parent guide supports parents in helping their child at home with the 1st Grade Math content. Within the folder you will access Parent Guide PDFs in FIVE Languages: Arabic, English, Hindi, Spanish, and Vietnamese to help on-going communication with caregivers.

Subject:
Mathematics
Material Type:
Reference Material
Vocabulary
Author:
Kelly Rawlston
Date Added:
02/15/2023
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CC BY-NC-SA
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This resource accompanies our Rethink 1st Grade Math Operations and Algebraic Thinking unit. It includes ideas for use, ways to support exceptional children, ways to extend learning, digital resources and tools, tips for supporting English Language Learners and students with visual and hearing impairments. There are also ideas for offline learning.

Subject:
Mathematics
Material Type:
Curriculum
Lesson Plan
Teaching/Learning Strategy
Author:
Kelly Rawlston
Letoria Lewis
Date Added:
02/17/2023
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CC BY-NC-SA
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This unit was created by the Rethink Education Content Development Team. This course is aligned to the NC Standards for 1st Grade Math in Operations and Algebraic Thinking.

Subject:
Mathematics
Material Type:
Activity/Lab
Assessment
Formative Assessment
Homework/Assignment
Presentation
Unit of Study
Vocabulary
Author:
Kelly Rawlston
Letoria Lewis
Date Added:
02/17/2023
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CC BY-NC-SA
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This short video and interactive assessment activity is designed to teach second graders an overview of addition (sums to 10).

Subject:
Mathematics
Material Type:
Assessment
Interactive
Lecture
Provider:
CK-12 Foundation
Provider Set:
CK-12 Elementary Math
Date Added:
06/06/2019
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Students will determine the amount needed to add to the catapult to destroy the king's castle for him in this interactive activity.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
ICT Games
Author:
ICT Games
Date Added:
02/26/2019
Unrestricted Use
CC BY
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The Family Letters explain big ideas of the cluster using family-friendly language. Families can also find tips for working with their children at home, digital games, videos, and books. This file contains both English and Spanish versions of the Family Letters.

Subject:
Mathematics
Material Type:
Homework/Assignment
Reading
Reference Material
Author:
DAWNE COKER
Date Added:
12/26/2019
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Students complete the addition sentence by filling in the missing number with sums up to 20 in this interactive resource.

Subject:
Mathematics
Material Type:
Interactive
Provider:
Teach Me
Author:
Math Games
Date Added:
02/26/2019
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Educational Use
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In this Khan Academy interactive, students will determine the unknown whole number in an addition or subtraction equation involving three whole numbers.

Subject:
Mathematics
Material Type:
Interactive
Provider:
Khan Academy
Author:
Khan Academy
Date Added:
04/23/2019
Unrestricted Use
CC BY
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This task asks students to solve addition and subtraction equations with different structures so that they are able to see the connections between addition and subtraction more easily.

Subject:
Mathematics
Material Type:
Homework/Assignment
Provider:
Illustrative Mathematics
Provider Set:
Illustrative Mathematics
Author:
Illustrative Mathematics
Date Added:
05/01/2012
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For this assessment, students use number cards to determine the missing number for the equations.

Subject:
Mathematics
Material Type:
Assessment
Provider:
Hawaii State Department of Education
Author:
Hawaii State Department of Education
Date Added:
02/26/2019
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Students determine the unknown whole number in an addition or subtraction equation relating to three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8+ ? =11, 5 = ? ? 3, 6+6 = ? Game board templates are provided.

Subject:
Mathematics
Material Type:
Activity/Lab
Game
Provider:
K-5 Math Teaching Resources
Author:
K-5 Math Teaching Resources
Date Added:
02/26/2019
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CC BY-NC-SA
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In this lesson, students look for and make use of repeated reasoning and structure using the addition chart to solve subtraction problems.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
EngageNY
Author:
Engage NY
Date Added:
04/23/2019
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CC BY-NC-SA
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In this lesson, students analyze the addition chart to create sets of related addition and subtraction facts.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
EngageNY
Author:
Engage NY
Date Added:
04/23/2019
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Students solve addition and subtraction problems to 20 by counting all the objects in their head.

Subject:
Mathematics
Material Type:
Activity/Lab
Provider:
New Zealand Government
Author:
New Zealand Government
Date Added:
02/26/2019
Conditional Remix & Share Permitted
CC BY-NC-SA
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In this lesson, students represent teen number decompositions as 10 ones and some ones, and find a hidden part.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
EngageNY
Author:
Engage NY
Date Added:
04/23/2019
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For this assessment, students use manipulatives to assist them in deciding what number makes the equation true.

Subject:
Mathematics
Material Type:
Assessment
Provider:
Hawaii State Department of Education
Author:
Hawaii State Department of Education
Date Added:
02/26/2019
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This lesson uses shapes/symbols to represent a missing value in a mathematical equation.

Subject:
Mathematics
Material Type:
Lesson Plan
Provider:
Utah Education Network
Author:
Utah Education Network
Date Added:
02/26/2019