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Common Core: Standard
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Common Core: Math
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 Topic B focuses on spatial relationships and structuring as students organize equal groups (from Topic A) into rectangular arrays. They build small arrays (up to 5 by 5) and use repeated addition of...

 Students measure a notebook with centimeters and inches, then discuss the unit difference.

 This Mathematics Common Core video features 2nd grade students from Dr. Louis A. Cerulli School 34 in Rochester, NY. In this lesson students work with standard 2.NBT.5: Fluently add and subtract...

 Objective: Measure an item twice using different length units and compare; relate measurement to unit size.

 Objective: Measure to compare the differences in length using inches, feet, and yards.

 Objective: Develop estimation strategies by applying prior knowledge of length and using mental benchmarks.

 Objective: Identify unknown numbers on a number line diagram by using the distance between numbers and reference points.

 Objective: Represent twodigit sums and differences involving length by using the ruler as a number line.

 This Mathematics Common Core video features second grade students from Milton Terrace North Elementary School located in Ballston Spa, NY. This lesson demonstrates Focus Standard 2.MD.10: Solve...

 Objective: Apply concepts to create inch rulers; measure lengths using inch rulers.

 Objective: Draw a line plot to represent a given data set; answer questions and draw conclusions based on measurement data.

 Objective: Subtract from multiples of 100 and from numbers with zero in the tens place.

 Objective: Use grid paper to create designs to develop spatial structuring.

 Objective: Use scissors to partition a rectangle into samesize squares, and compose arrays with the squares.

 Objective: Draw a line plot to represent the measurement data; relate the measurement scale to the number line.

 Objective: Subtract from multiples of 100 and from numbers with zero in the tens place.

 Objective: Describe a whole by the number of equal parts including 2 halves, 3 thirds, and 4 fourths.

 Objective: Recognize that equal parts of an identical rectangle can have different shapes.

 Objective: Use math drawings to partition a rectangle with square tiles, and relate to repeated addition.

 Objective: Use math drawings to represent additions with up to two compositions and relate drawings to the addition algorithm.

 Objective: Use math drawings to represent subtraction with up to two decompositions, relate drawings to the algorithm, and use addition to explain why the subtraction method works.

 Objective: Pair objects and skipcount to relate to even numbers.

 Objective: Investigate the pattern of even numbers: 0, 2, 4, 6, and 8 in the ones place, and relate to odd numbers.

 Objective: Choose and explain solution strategies and record with a written addition method.