OA-Represent+&+Solve+Problems+-+Addition+&+Subtraction

2.OA.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.* __Mathematical Practices__ MP1. Make sense of problems and persevere in solving them. MP2. Reason abstractly and quantitatively. MP3. Construct viable arguments and critique the reasoning of others. MP4. Model with mathematics. MP5. Use appropriate tools strategically. MP8. Look for and express regularity in repeated reasoning. || 2.IN.1.2 Summarize appropriate reading strategies when reading for information. 2.TT.1.2 Use a variety of technology tools to organize data and information (e.g., word processor, graphic organizer, audio and visual recording, online collaboration tools, etc.). 2.TT.1.3 Use technology tools to present data and information (multimedia, audio and visual recording, online collaboration tools, etc.). 2.SE.1.1 Use technology hardware and software responsibly. || ===‍‍‍**Revised Bloom's Level of thinking**=== Level 1 - Remembering Exhibit memory of previously learned material by recalling facts, terms, basic concepts, and answers. Level 2 - Understanding Demonstrate understanding of facts and ideas by organizing, comparing, translating, interpreting, giving descriptions, and stating main ideas. Level 3 - Applying Solve problems to new situations by applying acquired knowledge, facts, techniques and rules in a different way. Level 4 – Analyzed Examine and break information into parts by identifying motives or causes. Make inferences and find evidence to support generalizations. Level 5 – Evaluating Present and defend opinions by making judgments about information, validity of ideas, or quality of work based on a set of criteria. Level 6 - Creating Compile information together in a different way by combining elements in a new pattern or proposing alternative solutions. ||
 * ===**Common Core Standard**===
 * See Glossary, Table 1. || ===‍‍‍**Anchor Standard/Mathematical Practice(s)**===
 * ===‍‍‍**Information Technology Standard**===

‍‍‍**I can...**

 * **I can use addition to join two amounts.**
 * **I can solve addition problems when there is an unknown change.**
 * **I can solve addition problems when there is an unknown amount at the beginning.**
 * **I can use subtraction to find how many are left.**
 * **I can use subtraction to find the difference between between two amounts.**
 * **I can use subtraction to find a missing amount.**
 * **I can solve two-step problems with addition and subtraction.**

‍‍‍**Essential Vocabulary**
symbol, plus/minus, explain, mental strategy, solve, difference, addends

‍‍‍**Sample Assessment**

 * mClass Math**
 * Formative Assessments**
 * 2.OA.1 Task **
 * 2.OA.1 Start Unknown Practice**

Compare Word Problems- 2.OA.1(L) Start Unknown Practice

‍‍‍**Intervention:**
[|Magic Triangles]

[|Magic Square (3x3)]

[|(k-5mathteachingresource)]

Classroom Strategies:
 * 1.04 a, b - S, T, U **

Word Problems: mathoceans.com

‍‍‍**Enrichment:**
Word Problems: mathoceans.com

‍‍‍**Instructional Resources**

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 * http://daretodifferentiate.wikispaces.com/Choice+Boards **


 * [] **
 * earlymath/grades_games_ **
 * pbs.html **

[|www.naeyc.org] (book titles)

[|www.k-5mathteachingresource.com] memorizing math facts: [|www.mathfactspro.com] [|www.ixl.com] [|www.mathsisfun.com] [|www.youtube.com] [|www.coolmath-games.com] [|www.morethanmaths.com]

Math Start Books By: Stuart J. Murphey