If happiness is partly determined by genetics , health and other factors relatively independent of us, we can still improve it in some ways , through our own motivation, playing and practicing what will improve our well being, both daily and over the long term. At the annual meeting of the American Association for the […]

# Productivity

## What third graders should know

Math Add and subtract two- and three-digit numbers with regrouping (i.e. making ones into tens, tens into hundreds) Find the answers to simple multiplication problems using repeated addition or counting by multiples Understand place value up to four digits Time and Measurement— Tell time accurately using an analog (non-digital) clock Estimate and measure objects using […]

## What second graders should know

Math Memorize basic addition and subtraction facts for numbers 1-10 Find the sum or difference of two whole numbers up to three digits long Use repeated addition to do multiplication Counting, Ordering, and Place Value— Count, read, and write numbers up to 1,000 Order and compare whole numbers up to 1,000 Understand place value concepts […]

## What first graders should know

Math Count by ones, twos, fives, and tens to 100 Write, order, and compare numbers to 99 (e.g. finishes sequence 23, __ , 25) Understand concepts of addition and subtraction Add and subtract using numbers 1 through 20 Choose correct operation (+ or -) in a problem-solving situation Understand place value, simple fractions, and measurement […]