DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. Learning Objective Name________________________ Today, we will add numbers. CFU What are we going to do today? What are we going to add? Activate (or Provide) Prior Knowledge CFU Teacher solves #1; students solve #2. Students, you already know add facts. Today, we will use add facts to add larger numbers. Today, we are going to add numbers. We are going to add numbers

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. CFU Using your whiteboards, write the symbol that means add. Which problem is an add problem, A or B? Explain your answer. A.B. Concept Development Add (+) means to put together. The symbol 1 (  ), is called the plus sign. We use it when we have to add. After we add, the answer is called the sum. 1 letter, picture or sign that stands for something else Example: Write the sum of the two numbers. The sum of 42 and 53 is _____. In your own words, what does add mean? Add means ____________________. Noah won 42 tickets at the arcade. Yvonne won 53 tickets. How many tickets did they win altogether? Noah and Yvonne won 95 tickets. 9 5

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only CFU How did I add digits in the ones column? How did I add digits in the tens column? How did I add the digits in the hundreds column? How did you add digits in the ones column? How did you add the digits in the tens column? How did you add the digits in the hundreds column? Skill Development/Guided Practice Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add (  ) means to put together. After we add, the answer is called the sum. Add numbers

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Mr. Salazar’s class had a 15 minute recess. As a reward for good behavior, he gave them 10 more minutes of recess. How many minutes of recess did his class get? 10. In Mrs. Meza’s class there are 14 boys and 13 girls. How many students are there altogether? Skill Development/Guided Practice (continued) Add (  ) means to put together. After we add, the answer is called the sum. CFU How did I add digits in the ones column? How did I add digits in the tens column? How did I add the digits in the hundreds column? How did you add digits in the ones column? How did you add the digits in the tens column? How did you add the digits in the hundreds column? minutes students Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. Importance CFU Does anyone else have another reason why it is important to add numbers? (pair-share) Why is it important to add numbers? You may give me one of my reasons or one of your own. Which reason means the most to you? Why? Add (  ) means to put together. After we add, the answer is called the sum. 1. Adding numbers will help you add larger numbers. David wants a gaming console that costs $220 and a bike that costs $249. How much will these cost altogether? 3. Adding numbers will help you do well on tests There are no CST questions released for adding numbers without regrouping. 2 make decisions about something 2, ,214 8, Adding numbers will help you manage 2 money.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. Closure 1.In your own words, what does add mean? 2.Add the numbers below. 3.What did you learn today about adding numbers? Why is that important to you? (pair-share) Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum Jason bought a cookie for 50¢ and juice for 45¢. How much money did he spend? cents 786

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Independent Practice Name _____________________________ Add (  ) means to put together. After we add, the answer is called the sum. Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. Independent Practice (continued) Name _____________________________ Add (  ) means to put together. After we add, the answer is called the sum Gary’s grandpa gave him $40 for his birthday. His Aunt Sharon gave him $35. How much birthday money did Gary get? 10. Veronica spent 18 minutes on her math homework and 30 minutes on her language arts homework. How much time did she spend on homework? $ minutes Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only. Periodic Review 1 Name _____________________________ Add (  ) means to put together. After we add, the answer is called the sum Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Adam read 12 chapter books last summer. This summer, he read 16 chapter books. How many books did he read altogether? 10. Sarah bought a pair of shoes for $24 and a watch for $15. How much did she spend? Periodic Review 1 (continued) Add (  ) means to put together. After we add, the answer is called the sum. Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Periodic Review 2 Name _____________________________ Add (  ) means to put together. After we add, the answer is called the sum. Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Daniel spends 30 minutes reading on Sunday and 48 minutes reading on Tuesday. How many minutes did he read on both days? 10. Cindy practiced her math facts for 21 minutes on Monday and 34 minutes on Tuesday. How many minutes did she practice her math facts? minutes Periodic Review 2 (continued) Add (  ) means to put together. After we add, the answer is called the sum. Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Periodic Review 3 Name _____________________________ Add (  ) means to put together. After we add, the answer is called the sum. Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.

DataWORKS Educational Research (800) ©2011 All rights reserved. Comments? 2 nd Grade Math Number Sense 2.2 (4Q) Find the sum or difference of two whole numbers up to three digits long. Lesson to be used by EDI-trained teachers only Melinda washed dishes for 32 minutes. She vacuumed for 26 minutes. How much time did she spend washing dishes and vacuuming? 10. Daryl bought a baseball cap for $25. He also bought socks for $13. How much did he spend all together? minutes $ Periodic Review 3 (continued) Add (  ) means to put together. After we add, the answer is called the sum. Step #1: Add the digits in the ones column. Step #2: Add the digits in the tens column. Step #3: Add the digits in the hundreds column, if needed. Step #4: Read the problem and the sum. Add numbers.