G3+Math+Unit+8

** Investigations Math ** ** Grade 3 ** ** Unit 8: How Many Hundreds? How Many Miles? **  1. Make sense of math problems and persevere in solving them. 2: Reason abstractly and answer quantitatively. 3. Construct viable arguments and critique the reasoning of others. 4: Model with mathematics. 5. Use appropriate tools strategically. 6. Attend to precision. 8: Look for and express regularity in repeated reasoning. 3.OA.3 – Represent and solve problems involving multiplication and division. 3.OA.7 – Multiply and divide within 100. 3.0A.8, 9 – Solve problems involving the four operations, and identify and explain patterns in arithmetic. 3.NBT.2 – Use place value understanding and properties of operations to perform multi-digit arithmetic. EfS: A - Cultural Preservation and Transformation, B – Responsible Local and Global Citizenship, C – The Dynamics of Systems and Change, D – Sustainable Economics, F – Natural Laws and Ecological Principles || Students add multiples of 10 and 100 to and subtract them from 3-digit numbers. They use multiples of 100 as a landmark as they solve addition and subtraction problems. || ** Investigation 2: Addition Strategies ** Students solve addition problems with 3-digit numbers. They share, discuss, and compare their different strategies. || ** Investigation 3: Subtraction ** Students continue to develop fluency with subtraction. They solve subtraction problems in a variety of contexts and describe and compare their strategies. They are assessed on their fluency with subtraction facts related to the addition combinations to 10+10. || positive negative hundreds || 2.1 – 2.5 equation expression equivalent estimate addend || 3.1 – 3.9 sum difference landmark || 1.5 – Assessment Problems About //Capture from 300 to 600// || 2.3 - p. 28 Differentiated Portfolio Task 2.5 - Assessment Addition Strategies || 3.3 - Subtraction Strategies, Problem 2 3.4 & 3. 5 – Subtraction Facts 3.6 – p. 56 3.7-3.8 – Two-Step $ Problems p. 63-64 3.9 - End of Unit Assessment ||
 * Alain L. Locke Magnet School for Environmental Stewardship **
 * CCLS Math Practice: **
 * Standards: **
 * ** Enduring Understanding ** |||||| We encounter addition and subtraction problems in the natural world and use different strategies for solving them.
 * ** Essential Question ** |||||| What are useful strategies for solving addition and subtraction problems in the natural world? ||
 * ** Learning Outcomes ** || ** Investigation 1: Numbers in the Hundreds **
 * ** Pre-Assessment ** || Place value, strategies for adding, key words for adding and subtracting, discussion skills || Place value, strategies for adding, key words for adding and subtracting, discussion skills || Place value, strategies for adding, key words for adding and subtracting, discussion skills, addition combinations ||
 * ** Suggested Time Frame **
 * April 3 - May 10, 2013 ** || 5 days || 5 days || 9 days ||
 * ** Activities & Vocabulary ** || 1.1 – 1.5
 * ** Assessments ** || 1.4 – Multiplication Combinations Check p. 16