Kindergarten Everyday Mathematics
emphasizes the following content strands, skills,
 and concepts:

Number and Numeration 
Counting, estimating, representing and comparing numbers,
and reading and writing numbers.

Operations and Computation
 Exploring the meaning of addition and subtraction,
 and developing and using concrete strategies to solve
addition and subtraction problems.

Data and Chance
Collecting and organizing data, creating and analyzing tally
charts, tables, and bar graphs, and exploring
basic probability concepts.

Measurement and Reference Frames
 Using nonstandard tools to estimate and compare weight
 and length, identifying pennies, nickels, dimes, quarters, and
dollar bills, exploring temperature and thermometers, using
calendars and other tools to track or measure time.  Patterns,
 Functions, and Algebra – Exploring visual, rhythmic, and movement patterns, using rules to sort by attributes, make patterns, and play
 games, and learning about the +, -, and = symbols.