Content Area: Math

 

Index: 4.1A Grade 2 CPI 1

 

Standard: 4.1 - Number and Numerical Operations

 

Strand: A - Number Sense

 

Cumulative Progress Indicator: 1 - The student will use real-life experiences, physical materials, and technology to construct meanings for numbers (unless otherwise noted, all indicators for grade 2 pertain to these sets of numbers as well).

·        Whole numbers through hundreds

·        Ordinals

·        Proper fractions (denominators of 2, 3, 4, 8, 10)

 

Grade: 2

 

Sample Activities:

 

·        Young students make and use a variety of models for "number" ranging from poker chips to dot patterns on a paper plate, to Cuisenaire Rods, to tally marks, to domino and dice combinations. A large component of their early work with number focuses on the various parts into which any given number can be broken.

 

·        Students play the Broken Key game on their calculators. Kindergartners try to get the calculator display to show 7 while pretending that the 7 key is broken and cannot be pressed. Second graders might try to get the display to show 45 without pressing the 4 or the 5 key.

 

·        Students use 5-frames and 10-frames to help develop initial ideas of small numbers. By filling up a 5-cell grid with counters first and then putting out 2 more while trying to show "7 in all," the child not only learns about "7" but also about its relationship to "5."

 

·        Students use numbers throughout the school day as they discuss the date, attendance, time, snacks, money, etc.

 

·        Students investigate fractions by listening to the story Gator Pie by Louise Mathews and by discussing how Alvin and Alice can share their pie with more and more alligators.

 

·        Second-graders record prices as decimals ($0.39) and use this notation to find totals over $1 on a calculator.

 

·        Students find half of a sheet of paper by folding horizontally, by folding vertically, and by folding diagonally. They compare the results and discuss how they are alike and how they are different.

 

·        Students use Balancing Bear software to find combinations of numbered weights that will balance a seesaw or that will be greater or less than a given weight.

 

Kidspiration Activities:

 

·        Making Sets