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Common Core: Standard
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Common Core: Math
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 Objective: Represent equal groups with tape diagrams, and relate to repeated addition.

 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...

 Grade 2 Math Common Core Instruction: Use modeling and tools to solve three digit subtraction problems

 Students begin by learning to tell and write time to the nearest minute using analog and digital clocks in Topic A (3.MD.1). They understand time as a continuous measurement through exploration with...

 Kilograms and grams are introduced in Topic B, measured on digital and spring scales. Students use manipulatives to build a kilogram and then decompose it to explore the relationship between the...

 More experienced with measurement and estimation using different units and tools, students further develop their skills by learning to round in Topic C (3.NBT.1). They measure, and then use place...

 Students measure and round to solve problems in Topics D and E (3.NBT.1, 3.MD.1, 3.MD.2). In these topics they use estimations to test the reasonableness of sums and differences precisely calculated...

 Students measure and round to solve problems in Topics D and E (3.NBT.1, 3.MD.1, 3.MD.2). In these topics they use estimations to test the reasonableness of sums and differences precisely calculated...

 In Topic F, students multiply by multiples of 10 (3.NBT.3). To solve a fact like 2 × 30, they first model the basic fact 2 × 3 on the place value chart. Place value understanding helps them to...

 Objective: Use the area model and division to show the equivalence of two fractions.

 Objective: Explain fraction equivalence using a tape diagram and the number line, and relate that to the use of multiplication and division.

 Objective: Reason using benchmarks to compare two fractions on the number line.

 Objective: Reason using benchmarks to compare two fractions on the number line.

 Objective: Find common units or number of units to compare two fractions.

 Objective: Add and multiply unit fractions to build fractions greater than 1 using visual models.

 Objective: Decompose and compose fractions greater than 1 to express them in various forms.

 Objective: Represent the multiplication of n times a/b as (n × a)/b using the associative property and visual models.

 Objective: Find the product of a whole number and a mixed number using the distributive property.

 Objective: Find and use a pattern to calculate the sum of all fractional parts between 0 and 1. Share and critique peer strategies.

 Objective: Model decompositions of 7 using a story situation, sets, and number bonds.

 Objective: Count 10 objects within counts of 10 to 20 objects, and describe as 10 ones and __ ones.

 Objective: Count and circle 10 objects within images of 10 to 20 objects and describe as 10 ones and ___ ones.

 Objective: Count straws the Say Ten way to 19; make a pile for each ten.

 Objective: Count straws the Say Ten way to 20; make a pile for each ten.