Parent Notes Standard Standard What does this What can I do Resources Code standard at home? mean? Operations Use addition and Students are able to Ask your child to take and Algebraic subtraction within solve word problems apart and put together ! Thinking 20 to word using numbers and items to show adding Grade 1 problems involving symbols to model the and subtracting. For Standard 1 situations of adding problem. example, if you have 20 (1.OA.1) to, taking from, blocks and you take putting together away 6, the equation is 20-6=14. Operations word problems Students can take three Ask your child to use and Algebraic that call for addition different numbers and blocks or coins to show Thinking of three whole add them together (as how they can add three Grade 1 numbers whose opposed to only two numbers together, and Standard 2 sum is less than 20, numbers added what the equation (1.OA.2) e.g. by using objects, together) would look like. For drawings, and example, 5+3+2=10 equations with a symbol for the unknown number to represent the problem. Operations Apply properties of For example, if 8+3=11 Ask your child to and Algebraic operations as is the 3+8=11 is switch the order of Thinking strategies to add also known. This is the numbers around in an Grade 1 and subtract. commutative property addition problem and Standard 3 of addition find the same answer. (1.OA.3) Also, show them that finding numbers that For example, if you add up to 10 makes want to add addition easier. 2+6+4=2+10=12, this is the associative property of addition. Operations Understand For example, subtract Ask your to show and Algebraic subtraction as an 10-8 by finding the you that to answer the number that 10 problem 10-8, they
Parent Notes Standard Code Standard What does this standard mean? What can I do at home? Resources Operations and Algebraic Thinking Grade 1 Standard 1 (1.OA.1) Use addition and subtraction within 20 to word problems involving situations of adding to, taking from, putting together Students are able to solve word problems using numbers and symbols to model the problem. Ask your child to take apart and put together items to show adding and subtracting. For example, if you have 20 blocks and you take away 6, the equation is 20-6=14. ! Operations and Algebraic Thinking Grade 1 Standard 2 (1.OA.2) word problems that call for addition of three whole numbers whose sum is less than 20, e.g. by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. Students can take three different numbers and add them together (as opposed to only two numbers added together) Ask your child to use blocks or coins to show how they can add three numbers together, and what the equation would look like. For example, 5+3+2=10 Operations and Algebraic Thinking Grade 1 Standard 3 (1.OA.3) Apply properties of operations as strategies to add and subtract. For example, if 8+3=11 is the 3+8=11 is also known. This is the commutative property of addition For example, if you want to add 2+6+4=2+10=12, this is the associative property of addition. Ask your child to switch the order of numbers around in an addition problem and find the same answer. Also, show them that finding numbers that add up to 10 makes addition easier. Operations and Algebraic Understand subtraction as an For example, subtract 10-8 by finding the number that 10 Ask your to show you that to answer the problem 10-8, they
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