Edison School District

Developing a desire for lifelong learning

By the end of second grade, students  understand place value and number      relationships as they add and subtract and use simple concepts of                multiplication.  They measure quantities with appropriate units.  They classify and see relationships among shapes by paying attention to the elements that compose them.  They collect & analyze data and verify answers.

Number Sense

Þ   Students understand the              relationship among numbers, quantities and place value in whole numbers up to 1000

Þ   Count, read, write, order and       compare whole numbers to 1,000 and identify the place value for each digit

Þ   Use words, models and expanded form to represent numbers to 1,000    

Þ   Estimate and solve problems         involving addition and subtraction of two and three digit numbers

Þ   Understand and use the inverse     relationship between addition and       subtraction (example: an opposite    number sentence for 8 + 6 = 14 - 6 = 8) to solve problems and check solutions

Þ   Estimate and find the sum or         difference of two digit whole numbers with regrouping and three digit whole numbers without regrouping

Þ   Use mental arithmetic to find the sum or difference of two 2-digit      numbers

Þ   Know addition and subtraction facts to 18

Þ   Students model and solve simple  problems involving multiplication and   division

Þ   Solve simple division problems with remainders

 

Þ Understand basic concept of             multiplication and begin learning 2s, 5s and 10s

Þ Understand that fractions and      decimals can refer to parts of a set and parts of a whole

Þ  Model and solve problems by adding and subtracting amounts of money

Þ   Solve problems using combinations of coins and bills

Þ  Know and use decimals and dollar and cents symbols for money to the         thousands place

Þ   Use estimation strategies when     problem solving involving money

Þ   Estimate reasonably when measuring

Algebra & Functions

Þ   Students model, represent and     interpret number relationships to     create and solve problems using          addition and subtraction

Þ   Solve number sentences involving   addition and subtraction

Þ   Solve addition and subtraction    problems using simple charts, picture graphs and number sentences

Þ   Solve addition and subtraction    problems involving an unknown quantity

Statistics, Data Analysis

& Probability

Þ   Students collect, record, organize, display and interpret data graphs

Þ   Collect and record data in systematic ways, keeping track of what/who has been counted

Þ   Represent the same data set in more than one way (example: charts with    tallies and bar graphs)

Þ   Identify features of data sets (which feature shows up more often, least often)

Þ   Ask and answer simple questions    related to data

Þ   Begin working with concepts in    probability, determining the likelihood of an event occurring

Measurement & Geometry

Þ   Students measure the length of   objects by choosing and repeating a unit

 

 

 

Þ   Use different units to measure the same object and predict whether the measure will be greater or smaller when a different unit is used 

Þ Measure the length of an object to the nearest inch and/or centimeter

Þ Determine the duration of time     intervals in hours (example: 11:00 a.m. to 4:00 p.m. is 5 hours)

Þ   Describe and classify plane and solid geometric shapes (example:     circle, triangle, square, rectangle, sphere, pyramid, etc…) according to the number and shape of faces, edges and corners

Þ   Put shapes together and take them apart to form other shapes (example: two congruent right triangles can form a rectangle)

Þ   Demonstrate an understanding of patterns and how they grow and shrink

Þ   Solve problems involving simple number patterns

Mathematical Reasoning

Þ   Students make decisions about how to set up and solve a problem

Þ Decide about the approach and/or strategies, and materials to use to solve a problem

Þ Solve problems and justify answers

Þ Check the validity of results (does the answer make sense?)