OA-Add+&+Subtract+Within+20

2.OA.2. Fluently add and subtract within 20 using mental strategies.* By end of Grade 2, know from memory all sums of two one-digit numbers. __Mathematical Practices__ MP2. Reason abstractly and quantitatively. MP7. Look for and make use of structure. 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. ||
 * ===**Common Core Standard**===
 * See standard 1.OA.6 for a list of mental strategies. || ===‍‍‍**Anchor Standard/Mathematical Practice(s)**===
 * ===‍‍‍**Information Technology Standard**===

‍‍‍**I can...**

 * ===I can start at any single digit and count on to find a sum.===
 * I can find a sum by making a ten and breaking apart numbers.
 * I can understand the relationship between addition and subtraction.
 * I can use mental strategies to add and subtract.

‍‍‍**Essential Vocabulary**

 * addends**
 * difference**
 * plus/minus**
 * mental strategy**

‍‍‍**Sample Assessments**

 * 2.OA.2 Tasks**



Ticket Out the Door

Formative Assessments

Antecdotal Notes

Teacher Observations

Math 3d

‍‍‍**Intervention:**

 * Possible Activities: **

[|Nine Plus]

[|Fact Family House]

[|Double Plus One]

[|Double Minus One]

[|Eleven More]

[|Four in a Row with Near Doubles]

[|Near Doubles Cards]

[|Number Relationships] [|Number Relationship Mat] (k-5mathteachingresource) Use Cards to Play: Addition War & Subtraction War Numberville - Wk 11 Going Fishing - Wk 3 Easy As Pie – Wk 5 Picking Grapes – Wk 13 Scoop-De-Doo – Wk 8
 * Week By Week Essentials: Games **

‍‍‍**Enrichment:**
Wk By Wk Games: Week 9 Double Six Domino Addition Foxy Boxes *Who Wants to Be a Mathionaire?

‍‍‍**Instructional Resources**

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


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

[|www.k-5mathteachingresource.com] [|www.softschools.com]

memorizing math facts: [|www.mathfactspro.com]

[|www.mathsisfun.com] [|www.youtube.com] [|www.coolmath-games.com] [|www.morethanmaths.com] Teaching Student-Centered MATHEMATICS Grades K-3 By: John A. Van de Walle