Priority standards that we will focus on this year in math include:
Numbers & Operations in Base Ten
* Read and write numbers to 1000 using base-ten numerals, number names, and expanded form.
* Compare two three-digit numbers based on meanings of the hundreds, tens, and ones digits, using >, =, and < symbols to record the results of the comparisons.
* Fluently add and subtract within 100 using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.
* Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three-digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
* Explain why addition and subtraction strategies work, using place value and the properties of operations.
Operations & Algebraic Thinking
* Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.
* Fluently add and subtract within 20 using mental strategies. By the end of Grade 2, know from memory all sums of two one-digit numbers.
Measurement & Data
* Measure the length of an object twice, using different units for the two measurements; describe how the two measurements relate to the size of the unit chosen.
* Estimate lengths using units of inches, feet, centimeters, and meters.
* Use addition and subtraction within 100 to solve word problems involving lengths that are given in the same units. For example, by using drawings (such as drawings of rulers) and equations with a symbol for the unknown number to represent the problem.
* Tell and write time from analog and digital clocks to the nearest five minutes, using a.m. and p.m.
* Solve word problems involving dollar bills, quarters, dimes, nickels, and pennies, using $ and ¢ symbols appropriately.
* Draw a picture graph and a bar graph (with single-unit scale) to represent a data set with up to four categories. Solve simple put-together, take-apart, and compare problems using information represented in a bar graph.
* Recognize and draw shapes having specified attributes, such as a given number of angles or a given number of equal faces. Identify triangles, quadrilaterals, pentagons, hexagons, and cubes.
* Partition circles and rectangles into two, three, or four equal shares, describe the shares using the words halves, thirds, half of, a third of, etc. and describe the whole as two halves, three thirds, four fourths. Recognize that equal shares of identical wholes need not have the same shape.