2nd grade
- Groups objects in ones, tens, and hundreds.
- Gives the place value and finds the value of a digit in three-digit numbers
- Visualizes and counts numbers by 10s, 50s, and 100s.
- Reads and writes numbers up to 1 000 in symbols and in words.
- Visualizes and writes threedigit numbers in expanded form.
- Visualizes and compares numbers up to 1 000 using relation symbols.
- Visualizes and orders numbers up to 1 000 in increasing or decreasing order.
- Illustrates the properties of addition (commutative, associative, identity) and applies each in appropriate and relevant situations.
- Visualizes, represents, and adds 2-digit by 3-digit numbers with sums up to 1000 without and with regrouping .
- Visualizes, represents, and adds 3-digit by 3-digit numbers with sums up to 1000 without and with regrouping.
- Adds mentally 1- to 2-digit numbers with sums up to 50 using appropriate strategies.
- Adds mentally 3-digit numbers and 1-digit numbers using appropriate strategies
- Adds mentally three -digit numbers and tens (multiples of 10 up to 90) using appropriate strategies.
- Adds mentally 3-digit numbers and hundreds (multiples of 100 up to 900) using appropriate strategies.
- Visualizes, represents, and subtracts 2- to 3-digit numbers with minuends up to 999 without and with regrouping.
- Subtracts mentally 1-digit numbers from 1- to 3-digit numbers without regrouping using appropriate strategies.
- Subtracts mentally 3-digit numbers by tens and by hundreds without regrouping using appropriate strategies.
- Solves routine and nonroutine problems involving subtraction of whole numbers including money with minuends up to 1000 using appropriate problem solving strategies and tools.
- Creates problems involving subtraction of whole numbers including money.
- Performs orders of operations involving addition and subtractions of small numbers.
- Illustrates multiplication as repeated addition using 32.1 groups of equal quantities 32.2 arrays 32.3 counting by multiples 32.4 equal jumps on the number line
- Writes a related equation for each type of multiplication: repeated addition, array, counting by multiples, and equal jumps on the number line.
- Illustrates the property of multiplication that any number multiplied by one (1) is the same number.
- Illustrates the property of multiplication that zero multiplied by any number is zero.
- Illustrates the commutative property of multiplication.
- Visualizes multiplication of numbers 1 to 10 by 2,3,4,5 and10.
- Multiplies mentally 2,3,4,5 and 10 using appropriate strategies.
- Solves routine and nonroutine problems involving multiplication of whole numbers including money using appropriate problem solving strategies and tools.
- Identifies shapes/figures that show symmetry in a line.
- Identifies and draws the line of symmetry in a given symmetrical figure.
- Creates figures that show symmetry in a line.
- Identifies straight lines and curves, flat and curved surfaces in a 3- dimensional object. This is not reflected in the performance standards.
- Explains the differences between straight lines and curved lines, flat surfaces and curved surfaces. This is not reflected in the performance standards.
- Visualizes and represents division as equal sharing, repeated subtraction, equal jumps on the number line and using formation of equal groups of objects
- Creates and writes a related equation for each type of situation: equal sharing, repeated subtraction, equal jumps on the number line, and formation of equal groups of objects.
- Visualizes division of numbers up to 100 by 2,3,4,5, and 10 (multiplication table of 2, 3, 4, 5 and 10).
- Divides mentally numbers by 2,3,4,5 and 10 using appropriate strategies (multiplication table of 2, 3, 4, 5 and 10).
- Illustrates that multiplication and division are inverse operations.
- Visualizes, represents and identifies unit fractions with denominators of 10 and below.
- Reads and writes unit fractions.
- Compares unit fractions using relation symbols.
- Identifies other fractions less than one with denominators 10 and below.
- Visualizes similar fractions (using group of objects and number line).
15
Area- Illustrates area as a measure of how much surface is covered or occupied by a plane figure.
- Finds the area of a given figure using square-tile units i.e. number of squaretiles needed.
- Estimates the area of a given figure using any shape.
- Solves routine and nonroutine problems involving any figure using square tiles.