# 2nd Grade Math Course of Study

The following list provides you with the basic concepts that should be attained by the end of the school year. Mastery of the concepts at the previous grade is assumed.

## Numbers

• Read print numbers to 20 and locate, compare, order, represent, estimate, identify numbers to 1000 and mentally add and subtract numbers to 20
• Understand place value to be able to trade 10 ones for a ten, etc.
• Count by 1's, 2's, 5's, 10's beyond 100.
• Locate numbers when requested to 1000
• Understand the reverse properties of whole numbers 5+7 is the same as 7+5
• Add and subtract two-digit numbers (no carrying/regrouping)
• Introduction to division using sharing as examples
• Count by skipping numbers when requested
• Add and subtract coins up to \$1.00
• Compute word problems with addition and subtraction, (We have 20 children in swimming class, 8 are boys, how many are girls?)

## Measurement

• Use and understand more than, less than, the same as, heavier than, lighter than, taller than etc.
• Measure with a variety of cups, rulers and measuring spoons
• Time - hours, minutes and seconds
• Use the terms inches, feet, yards, centimeters, meters etc.
• Know the months of the year and tell time to the quarter hour
• Use a thermometer and count money to a dollar including being able to create different sets that equal a dollar
• Compare a variety of measurement tools

## Geometry

• Describe, identify, create and sort and build with shapes (squares, triangles, circles, rectangles etc.)
• Identify a variety of geometric shapes in everyday structures
• Compare and sort 2- and 3-dimensional shapes (3-D terms include sphere, prism cones etc.)
• Extend and make patterns with shapes
• Determine lines of symmetry, flips, slides, turns, and transformations of shapes
• Describe locations on a grid - up four and over two etc.

## Algebra/Patterning

• Identify, describe, reorganize and extend patterns with more than one attribute
• Give specific rules about patterns for numbers, shapes, pictures, and objects
• Identify and describe patterns in the world around us (wallpaper, paint etc)

## Probability

• Use graphs to record number of pets, hair color temperature with 1 and 2 attributes
• Design or construct bar graphs and include pertinent information
• Interpret a variety of picture and bar graphs and give explanations
• Investigate what happens when coins are flipped and die are rolled