2 Digit Addition Strategies Resource Book for Addition Within 100

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Life Between Summers

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Grade Levels

2nd

Subjects

Math, Basic Operations, Word Problems

Resource Type

Activities, Assessment

Standards

CCSS2.NBT.B.5

CCSS2.NBT.B.9

CCSS2.OA.A.1

CCSSMP1

CCSSMP3

Formats Included

Pages

46 pages

$6.00

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$6.00

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Math Tools and 2 Digit Addition & Subtraction Strategies Resource Books Bundle
This bundle includes all 3 versions of Math Resource Books for addition and subtraction strategies:Math ToolsAddition Within 100 (2 Digit Addition)Subtraction Within 100 (2 Digit Subtraction)The Math Tools Resource Book helps students learn how to effectively use tools and addition and subtraction s
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Description

Standards

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Reviews

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Description

This math resource helps students practice 2 digit addition strategies (including break apart, open number line, hundred chart, and compensation) as well as make sense of word problems. It also focuses on student writing in math, specifically with how they explain their thinking in written sentences when they solve a problem.

Students do exploratory and collaborative activities using an Addition Strategies Resource Book. After using it to practice their strategies, students can keep this book as a reference to go back to whenever they need help with problem solving.

The download includes the following:

Detailed Teacher Guidelines
Addition Strategies Within 100 Resource Book for students
Pre-Assessments
Post Assessments
Grading Rubrics for Pre and Post Assessments

Title & Headings for Chart

The Resource Book provides practice with the following strategies, and includes a blank template if you would like to use it to teach additional strategies:

Open Number Line

Hundreds Chart

Break Apart

Compensation

In addition, it provides practice with 2 digit addition word problems using the Find, Know, Show, Solve strategy. It also has these visual references to help students with writing explanations about how they solved:
Mathematical Explanation checklist
Written Example
Sentence starter frames
Transition words
Academic Vocabulary (one visual with provided words, and also a blank template for the class to brainstorm their own)

Additional Simple Sentence Frames (for students who need extra support)

Please see the preview for pictures of all that’s included.

You may also be interested in these similar resources, which are also available in a discounted bundle:

Math Tools Resource Book for Addition and Subtraction Strategies

2 Digit Subtraction Strategies Resource Book for Addition Within 100

Math Tools and Addition & Subtraction Strategies Resource Books Growing Bundle

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Total Pages

46 pages

Answer Key

N/A

Teaching Duration

N/A

Last updated Nov 13th, 2019

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Standards

to see state-specific standards (only available in the US).

CCSS2.NBT.B.5

Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

CCSS2.NBT.B.9

Explain why addition and subtraction strategies work, using place value and the properties of operations.

CCSS2.OA.A.1

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

CCSSMP1

Make sense of problems and persevere in solving them. Mathematically proficient students start by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals. They make conjectures about the form and meaning of the solution and plan a solution pathway rather than simply jumping into a solution attempt. They consider analogous problems, and try special cases and simpler forms of the original problem in order to gain insight into its solution. They monitor and evaluate their progress and change course if necessary. Older students might, depending on the context of the problem, transform algebraic expressions or change the viewing window on their graphing calculator to get the information they need. Mathematically proficient students can explain correspondences between equations, verbal descriptions, tables, and graphs or draw diagrams of important features and relationships, graph data, and search for regularity or trends. Younger students might rely on using concrete objects or pictures to help conceptualize and solve a problem. Mathematically proficient students check their answers to problems using a different method, and they continually ask themselves, "Does this make sense?" They can understand the approaches of others to solving complex problems and identify correspondences between different approaches.

CCSSMP3

Construct viable arguments and critique the reasoning of others. Mathematically proficient students understand and use stated assumptions, definitions, and previously established results in constructing arguments. They make conjectures and build a logical progression of statements to explore the truth of their conjectures. They are able to analyze situations by breaking them into cases, and can recognize and use counterexamples. They justify their conclusions, communicate them to others, and respond to the arguments of others. They reason inductively about data, making plausible arguments that take into account the context from which the data arose. Mathematically proficient students are also able to compare the effectiveness of two plausible arguments, distinguish correct logic or reasoning from that which is flawed, and-if there is a flaw in an argument-explain what it is. Elementary students can construct arguments using concrete referents such as objects, drawings, diagrams, and actions. Such arguments can make sense and be correct, even though they are not generalized or made formal until later grades. Later, students learn to determine domains to which an argument applies. Students at all grades can listen or read the arguments of others, decide whether they make sense, and ask useful questions to clarify or improve the arguments.

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