Math Test Day 32 October 8, 2015
Standards: 2.OA.1, 2.OA.3, 2.NBT.9
Problem #1
Common Core Standard: 2.OA.1: 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.
Common Core Standard: 2.NBT.9: Explain why addition and subtraction strategies work, using place value and the properties of operations.
Level 4:
· Student fluently uses multiple strategies related to place value to perform and explain calculations.
Level 3:
· Student writes equation that will lead to a correct solution.
· Student correctly solves problem with correct label.
· Student work clearly shows thinking that leads to correct answer.
· Student has a clear explanation to show their thinking.
Level 2:
· Student writes equation that will lead to correct answer.
· Incorrect Answer with label.
· Student work shows evidence of understanding in strategy use, but inaccuracies in the execution of the strategy.
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Or
· Student has correct answer with label, but work is unclear or does not demonstrate understanding of strategies
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Level 1:
· Student writes equation that will not lead to correct answer.
· Student cannot choose an appropriate strategy to solve problem.
· Incorrect answer
Problem #2
Common Core Standard: 2.OA.1: 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.
Common Core Standard: 2.NBT.9: Explain why addition and subtraction strategies work, using place value and the properties of operations.
Level 4:
· Student fluently uses multiple strategies related to place value to perform and explain calculations.
Level 3:
· Student correctly evaluates Olivia’s work.
· Student correctly solves problem with correct label using a different strategy.
· Student work shows thinking that leads to correct answer.
Level 2:
· Student correctly evaluates Olivia’s work.
· Student attempts different strategy with evidence of understanding , but with errors in work
Or
· Student has correct answer with label, but work is unclear or does not demonstrate understanding of strategy
Level 1:
· Student does not correctly evaluate Olivia’s work.
· Student cannot choose an appropriate alternate strategy to solve problem.
Problem # 3
Common Core Standard: 2.OA.3: Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
Level 4:
· Students use prior knowledge of doubles and doubles + 1 in their explanation of why the number and quantity is odd or even.
Level 3:
· Student answers at least 2 out of 3 correctly.
· Student has a clear explanation to show their thinking.
Level 2:
· Student answers 2 out of 3 correctly.
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Or
· Student answers 1 out of 3 correctly.
· Student has a clear explanation to show their thinking.
Level 1:
· Student answers 0 or 1 out of 3 correctly.
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Problem # 4
Common Core Standard: 2.OA.3: Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
Level 4:
· Students use prior knowledge of doubles and doubles + 1 in their explanation of why the number and quantity is odd or even.
Level 3:
· Student answers 2 out of 2 correctly and
· Student has at least 2 out of 3 clear explanations to show their thinking.
Or
· Student answers 1 out of 2 correctly and
· Student has 3 out of 3 clear explanations to show their thinking.
Level 2:
· Student answers 1 out of 2 correctly and
· Student has 2 out of 3 clear explanations to show their thinking.
Or
· Student answers 2 out of 2 correctly and
· Student show their thinking, but has some inaccuracies in the execution of 2 or more explanations.
Level 1:
· Student answers 0 out of 2 correctly.
· Student has all explanations with inaccuracies in the execution of the explanation.
Standards: 2.OA.1, 2.OA.3, 2.NBT.9
Problem #1
Common Core Standard: 2.OA.1: 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.
Common Core Standard: 2.NBT.9: Explain why addition and subtraction strategies work, using place value and the properties of operations.
Level 4:
· Student fluently uses multiple strategies related to place value to perform and explain calculations.
Level 3:
· Student writes equation that will lead to a correct solution.
· Student correctly solves problem with correct label.
· Student work clearly shows thinking that leads to correct answer.
· Student has a clear explanation to show their thinking.
Level 2:
· Student writes equation that will lead to correct answer.
· Incorrect Answer with label.
· Student work shows evidence of understanding in strategy use, but inaccuracies in the execution of the strategy.
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Or
· Student has correct answer with label, but work is unclear or does not demonstrate understanding of strategies
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Level 1:
· Student writes equation that will not lead to correct answer.
· Student cannot choose an appropriate strategy to solve problem.
· Incorrect answer
Problem #2
Common Core Standard: 2.OA.1: 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.
Common Core Standard: 2.NBT.9: Explain why addition and subtraction strategies work, using place value and the properties of operations.
Level 4:
· Student fluently uses multiple strategies related to place value to perform and explain calculations.
Level 3:
· Student correctly evaluates Olivia’s work.
· Student correctly solves problem with correct label using a different strategy.
· Student work shows thinking that leads to correct answer.
Level 2:
· Student correctly evaluates Olivia’s work.
· Student attempts different strategy with evidence of understanding , but with errors in work
Or
· Student has correct answer with label, but work is unclear or does not demonstrate understanding of strategy
Level 1:
· Student does not correctly evaluate Olivia’s work.
· Student cannot choose an appropriate alternate strategy to solve problem.
Problem # 3
Common Core Standard: 2.OA.3: Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
Level 4:
· Students use prior knowledge of doubles and doubles + 1 in their explanation of why the number and quantity is odd or even.
Level 3:
· Student answers at least 2 out of 3 correctly.
· Student has a clear explanation to show their thinking.
Level 2:
· Student answers 2 out of 3 correctly.
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Or
· Student answers 1 out of 3 correctly.
· Student has a clear explanation to show their thinking.
Level 1:
· Student answers 0 or 1 out of 3 correctly.
· Student has an explanation to show their thinking, but has some inaccuracies in the execution of the explanation.
Problem # 4
Common Core Standard: 2.OA.3: Determine whether a group of objects (up to 20) has an odd or even number of members, e.g., by pairing objects or counting them by 2s; write an equation to express an even number as a sum of two equal addends.
Level 4:
· Students use prior knowledge of doubles and doubles + 1 in their explanation of why the number and quantity is odd or even.
Level 3:
· Student answers 2 out of 2 correctly and
· Student has at least 2 out of 3 clear explanations to show their thinking.
Or
· Student answers 1 out of 2 correctly and
· Student has 3 out of 3 clear explanations to show their thinking.
Level 2:
· Student answers 1 out of 2 correctly and
· Student has 2 out of 3 clear explanations to show their thinking.
Or
· Student answers 2 out of 2 correctly and
· Student show their thinking, but has some inaccuracies in the execution of 2 or more explanations.
Level 1:
· Student answers 0 out of 2 correctly.
· Student has all explanations with inaccuracies in the execution of the explanation.