•   
     
     
     
    equation meme  
     
     
     
     
     
     Math 

    Narrative

    The big ideas in grade 2 include: extending the understanding of the base-ten number system, building fluency with addition and subtraction, using standard units of measure, and describing and analyzing shapes.

    The mathematical work for grade 2 is partitioned into 9 units:

    1. Adding, Subtracting, and Working with Data
    2. Adding and Subtracting within 100
    3. Measuring Length
    4. Addition and Subtraction on the Number Line
    5. Numbers to 1,000
    6. Geometry, Time, and Money
    7. Adding and Subtracting within 1,000
    8. Equal Groups
    9. Putting it All Together

    In these materials, particularly in units that focus on addition and subtraction, teachers will find terms that refer to problem types, such as Add To, Take From, Put Together or Take Apart, Compare, Result Unknown, and so on. These problem types are based on common addition and subtraction situations, as outlined in Table 1 of the Mathematics Glossary section of the Common Core State Standards.

     

    Unit 1

     

    In this unit, students build on what they learned about addition and subtraction in grade 1 to develop fluency with addition and subtraction facts within 20. They learn how to represent and interpret data on picture graphs and bar graphs, and they use these graphs to solve story problems involving addition and subtraction within 100. Students also learn a new representation, tape diagrams, to apply their understanding of the relationship between addition and subtraction and to solve problems.

    Section A: Add and Subtract Within 20

    In this section, students use what they know about the relationship between addition and subtraction to find the missing values in equations. They use strategies learned in grade 1 such as making a ten, counting on, and counting back to add within 50 and subtract within 20. For example, when adding , students break apart the 7 into , and make a ten by adding  and then add 5, so . Students later use these strategies to add and subtract within 100.

    Section B: Ways to Represent Data

    In this section, students are asked to make sense of two new data representations: a picture graph and a bar graph. Students learn to represent and interpret data on these graphs, and they ask and answer questions based on the data.

     

     

     

     

     
     
     
     
     

  • There are no upcoming events to display.

View Calendar