January - February

Number words: number, digit, place value, place (where a digit is in a number. For example, hundreds, tens, ones) vs. value 345 (the value of the 3 in this number is 300. The value of the 4 is 40 and the value of the 5 is 5 ones)

Addition: add, addition, all together, plus, join, both, combine, increase, total, sum, equals, how many in all?

Subtraction: subtract, subtraction, take away, minus, decrease, less than, fewer, difference, equals, how many more?, how many left?

November - December

Units of standard measurement: centimeter,ƒ height, length, unit of measure, meter, inches, feet,

Measuring tools: tape measure, meter stick,ƒ number line,ƒ ruler

Explaining your thinking: combine,ƒ compare, difference, benchmark, ƒendpoint, estimate, ƒ subtraction, addition

October - November

Ways we manipulate numbers: addition and subtraction

Addition: add, addition, all together, plus, join, both, combine, increase, total, sum, equals, how many in all?

Subtraction: subtract, subtraction, take away, minus, decrease, less than, fewer, difference, equals, how many more?, how many left?

Explaining your thinking: strategies, group, doubles, together, borrow, regroup, replace, remaining

August - September

Number words: number, digit, place value, place (where a digit is in a number. For example, hundreds, tens, ones) vs. value 345 (the value of the 3 in this number is 300. The value of the 4 is 40 and the value of the 5 is 5 ones)

Ways we manipulate numbers: add/plus/addition, subtract/subtraction, equals, sum, difference

Comparing numbers: greater/greatest, bigger/biggest, smaller/smallest, less/least, more than/less than, higher/lower

Explaining your thinking: strategy, base ten, expanded notation/expanded form, standard form