Ms. Wright's Classroom


Eureka Math Modules
and Homework Helpers

Math is taught through hands-on experimenting in second grade. Students learn to figure out the answers to mathematical problems through problem solving. Students must be able to explain why or how they arrived at an answer; therefore, they use their findings as evidence to support their responses. It is critical that students (who have passed first grade) have their addition and subtraction facts to 10 fluently memorized as we will build on these skills this year.

Module 1

Sums and Differences to 100

Module 1 sets the foundation for students to master sums and differences to 20 .  Students apply these skills to fluently add one-digit to two-digit numbers at least through 100 using place value understanding, properties of operations, and the relationship between addition and subtraction.  
  • Add and subtract within 20.
  • Number & Operations in Base Ten
  • Operations & Algebraic Thinking
    2.OA.1 | 2.OA.2
  • Represent and solve problems involving addition and subtraction.
  • Use place value understanding and properties of operations to add and subtract.

Module 2

Addition and Subtraction of Length Units

In Module, students engage in activities designed to deepen their conceptual understanding of measurement and to relate addition and subtraction to length.   Their work in Module 2 is exclusively with metric units in order to support place value concepts.  Customary units are introduced in Module 7.

Module 3

Module 3:  Place Value, Counting, and Comparison of Numbers to 1000

In Module 3 students expand their skill with and understanding of units by bundling ones, tens, and hundreds up to a thousand with straws.  Unlike the length of 10 centimeters in Module 2, these bundles are discrete sets.  One unit can be grabbed and counted just like a banana―1 hundred, 2 hundred, 3 hundred, etc.  A number in Grade 1 generally consisted of two different units, tens and ones.  Now, in Grade 2, a number generally consists of three units:  hundreds, tens, and ones.  The bundled units are organized by separating them largest to smallest, ordered from left to right.  Over the course of the module, instruction moves from physical bundles that show the proportionality of the units to non-proportional place value disks and to numerals on the place value chart.


Module 4

Addition and Subtraction Within 200 with Word Problems to 100

Module 4 is devoted to three major areas of work.  The first two are building fluency in two-digit addition and subtraction within 100 and applying that fluency to one- and two-step word problems of varying types within 100.  Students’ increasing fluency with calculations within 100 allows for word problems to transition from being mere contexts for calculation into opportunities for students to see and analyze the relationships between quantities.  Daily Application Problems and specific lessons in Topics A, C, and F provide students with guided and independent practice as they solve a variety of problem types, including more complex comparison problems.  Note that most two-step problems involve single-digit addends and do not involve the most difficult comparison problem types.  The third major area of work is developing students’ conceptual understanding of addition and subtraction of multi-digit numbers within 200.

Module 5

Addition and Subtraction Within 1,000 with Word Problems to 100

In Module 4, students developed addition and subtraction fluency within 100 and began developing conceptual understanding of the standard algorithm by means of place value strategies.  In Module 5, students build upon their mastery of renaming place value units and extend their work with conceptual understanding of the addition and subtraction algorithms to numbers within 1,000, always with the option of modeling with materials or drawings.  Throughout the module, students continue to focus on strengthening and deepening conceptual understanding and fluency.


Module 6

Foundations of Multiplication and Division

Grade  22 Module  66 lays the conceptual foundation for multiplication and division in Grade 3 and for the idea that numbers other than 11 , 10 10 , and  100100 can serve as units.
  • Geometry
  • Operations & Algebraic Thinking
    2.OA.3 | 2.OA.4
  • Reason with shapes and their attributes.
  • Work with equal groups of objects to gain foundations for multiplication.
    2.OA.3 | 2.OA.4

Module 7

Problem Solving with Length, Money, and Data

Module 7 presents an opportunity for students to practice addition and subtraction strategies within 100 and problem-solving skills as they learn to work with various types of units within the contexts of length, money, and data.  Students represent categorical and measurement data using picture graphs, bar graphs, and line plots.  They revisit measuring and estimating length from Module 2 but now use both metric and customary units.

Module 8

Time, Shapes, and Fractions as Equal Parts of Shapes

In Module 8, the final module of the year, students extend their understanding of part–whole relationships through the lens of geometry.  As students compose and decompose shapes, they begin to develop an understanding of unit fractions as equal parts of a whole.

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