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Common Core: Math
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208 Results

 Place Value of MultiDigit Whole Numbers

 Lessons in Topic A move students toward understanding familiar repeated addition from Grade 2 in the form of array models, which become a cornerstone of the module. Students use the language of...

 In this first module of Grade 1, students make significant progress towards fluency with addition and subtraction of numbers to 10 (1.OA.6). They are presented with opportunities intended to advance...

 In this first module of Grade 2, students make significant progress towards fluency with sums and differences within 20 (2.OA.2). Fluency, coupled with a fundamental grasp of place value, rests on...

 Comparing MultiDigit Whole Numbers

 Study of factors links Topics A and B; Topic B extends the study to division. Students understand division as an unknown factor problem, and relate the meaning of unknown factors to either the...

 Multiplicative Comparison Word Problems

 Rounding MultiDigit Whole Numbers

 As students move into Topic B, they gain momentum with putting together, composing and decomposing, and counting on to determine the total. Students use both concrete and pictorial situations to...

 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...

 The first day of kindergarten is long anticipated by parents and young students. In Topic A, Lesson 1, students reason about matching pairs of objects. Some of the pairs are exactly the same and some...

 Now that students have practiced their kindergarten and Grade 1 skills, they are ready to become more ﬂuent with addition problems, such as 8 + 7 and 5 + 9, where they must cross the ten. In Lesson 3...

 Metric Unit Conversions

 In Topic C, students use the array model and familiar skipcounting strategies to solidify their understanding of multiplication and practice related facts of 2 and 3. They become fluent enough with...

 Decomposition and Fraction Equivalence

 Topic A begins with students exploring concepts about the ruler. In Lesson 1, they relate length to physical units, by measuring various objects with multiple centimeter cubes. Students create a...

 Topic A opens Module 5 with students actively partitioning different models of wholes into equal parts (e.g., concrete models, fraction strips, and drawn pictorial area models on paper). They...

 Division of Tens and Ones with Successive Remainders

 Topic A begins with students solving word problems with three addends (1.OA.2) as a way for them to begin to explore the make ten Level 3 strategy in a meaningful context. With problems that always...

 MultiDigit Whole Number Addition

 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...

 Multiplication by 10, 100, and 1,000

 Topic A begins by revisiting the commutative property. Students study familiar facts from Module 1 to identify known facts using units of 6, 7, 8, and 9 (3.OA.5, 3.OA.7). They realize that they...

 In Topic B, students compare unit fractions and learn to build nonunit fractions with unit fractions as basic building blocks (3.NF.3d). This parallels the understanding that the number 1 is the...