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Use Model Drawing Procedure in Four-Step Process. Step 1: Main Idea. Step 2: Details. Main Idea of Question. Step 3. Step 4. Describe how the problem was solved. Work the computation (s). Four Step Process. Model Drawing. Main Idea Read the problem.
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Use Model Drawing Procedure in Four-Step Process Step 1: Main Idea Step 2: Details • Main Idea of Question Step 3 Step 4 • Describe how the problem was solved. • Work the computation (s).
Four Step Process Model Drawing • Main Idea • Read the problem. • Write the main idea in the question. • Details • Write who the problem is about (related to main idea.) • Write what the problem is about (related to main idea.) • Draw unit bars of equal length. • Re-read the problem one sentence at a time adjusting the unit bars to match the story and identify the question on the model. • Strategy • Work the computation (s). • How • Describe how the problem was solved.
Put Together Addition
Jeff has 3 toys. Austin has 9 toys. Austin has 9 toys. Jeff has 3 toys. How many toys do they have together? How many toys do they have together? Step 1 Step 2 9 ] Austin Jeff toys toys Toys together ? 3 |ξξ Step 3 Step 4 9 + 3 Add 9 and 3. 12 Second Grade
Jeff has 33 toys. Austin has 22 toys. Austin has 22 toys. Jeff has 33 toys. How many toys do they have? How many toys do they have? Step 1 Step 2 22 ] Austin Jeff toys toys Toys together ? 33 Step 4 Step 3 22 + 33 Add 22 and 33. 55
Take Away Subtraction
He gave 3 toys away. Jeff has 9 toys. Jeff has 9 toys. He gave 3 toys away. How many toys does he have now? How many toys does he have now? Step 1 Step 2 ] 9 __ X Jeff toys Toys now 3 ? Step 3 Step 4 9 - 3 Subtract 3 from 9. Found the difference between 9 and 3. 6 Second Grade
Compare Subtraction
Jeff has 6 toys. Mary has 4 toys. Jeff has 6 toys. Mary has 4 toys. How many more toys does Jeff have than Mary has? How many more toys does Jeff have than Mary has? Step 2 Step 1 6 Jeff Mary toys toys 4 more toys Jeff than Mary ] ? 4 |ξ - - - Step 3 Step 4 6 - 4 Subtract 4 from 6. 2 Second Grade
Jeff has 26 toys. Mary has 14 toys. Jeff has 26 toys. Mary has 14 toys. How many more toys does Jeff have than Mary has? How many more toys does Jeff have than Mary has? Step 2 Step 1 26 Jeff Mary toys toys 14 more toys Jeff than Mary ] ? - - - 14 |ξ Step 3 Step 4 26 - 14 Subtract 14 from 26. 12
Ben sold tickets to the game. 2 student tickets, He sold 8 adult tickets, . and 5 children tickets. How many Ben sold tickets to the game. He sold 8 adult tickets, 2 student tickets, and 5 children tickets. How many more adult than children tickets did he sell? more adult than children tickets did he sell? Step 1 Step 2 8 Ben Adult tickets Child tickets 5 More adult than children tickets - - - ] ? 5 |ξ Step 3 Step 4 8 - 5 Found the difference between 8 and 5. 3
Ben sold tickets to the game. 2 student tickets, He sold 8 adult tickets, . and 5 children tickets. How many Ben sold tickets to the game. He sold 8 adult tickets, 2 student tickets, and 5 children tickets. How many more adult than children tickets did he sell? more adult than children tickets did he sell? Step 2 Step 1 8 Adult tickets Student tickets Child tickets 5 - - - Ben More adult than children tickets ] ? 2 | ξ 5 |ξ Step 3 Step 4 8 - 5 Found the difference between 8 and 5. 3
Missing Part Subtraction
Jeff has 8 balls. Five balls are baseballs and the rest are soccer balls. How many are soccer Jeff has 8 balls. Five balls are baseballs and the rest are soccer balls. How many are soccer balls? balls? Step 2 Step 1 8 | Jeff balls S B soccer balls ] 5 ? Step 3 Step 4 8 - 5 Found the difference between 8 and 5. 3 Second Grade
Fifteen balls are baseballs Jeff has 24 balls. and the rest are soccer balls. How many are Jeff has 24 balls. Fifteen balls are baseballs and the rest are soccer balls. How many are soccer balls? soccer balls? Step 1 Step 2 24 | Jeff balls B S soccer balls ] 15 ? Step 3 Step 4 24 - 15 Found the difference between 24 and 15. 9
Multiple Step Operations Add and Subtract
He bought 7 new Max had 5 marbles. He gave his friend 3 marbles. Which number sentence shows how to find how many marbles at the store. Max had 5 marbles. He gave his friend 3 marbles. He bought 7 new marbles at the store. Which number sentence shows how to find how many marbles he has now? marbles he has now? Step 2 Step 1 5 7 X| Max marbles ] NS-Max marbles now 3 ? Step 3 Step 4 1) I subtracted 3 from 5. 5 - 3 2 + 7 2) I added 2 and 7. 9 2 Second Grade
He bought 7 new Max had 5 marbles. He gave his friend 3 marbles. Which number sentence shows how to find how marbles at the store. Max had 5 marbles. He gave his friend 3 marbles. He bought 7 new marbles at the store. Which number sentence shows how to find how many marbles he has now? many marbles he has now? Step 2 Step 1 5 | X Max marbles NS-Max marbles now 3 7 ] 2 ? Step 3 Step 4 1) I subtracted 3 from 5. 5 - 3 2 + 7 2) I added 2 and 7. 9 2 Second Grade
Sue gave Cathy 2 pencils Cathy has 9 pencils. She gave John 4 pencils. How could you find how many pencils Cathy has altogether? at lunch. Cathy has 9 pencils. She gave John 4 pencils. Sue gave Cathy 2 pencils at lunch. How could you find how many pencils Cathy has altogether? Step 2 2 Step 1 9 X | Cathy John Sue pencils pencils pencils ] 4 Find pencils Cathy ? 4 | X 2 Step 3 Step 4 9 - 4 5 + 2 Subtract 4 from 9. Then add 5 and 2. 7 5 Second Grade
Sue gave Cathy 2 pencils Cathy has 9 pencils. She gave John 4 pencils. at lunch. How could you find how many pencils Cathy has altogether? Cathy has 9 pencils. She gave John 4 pencils. Sue gave Cathy 2 pencils at lunch. How could you find how many pencils Cathy has altogether? Step 2 2 Step 1 9 X | Cathy pencils ] 4 Find pencils Cathy ? Step 3 Step 4 9 - 4 5 + 2 Subtract 4 from 9. Add 2 to the difference. 7 5 Second Grade
Tammy has a box of ten markers. She has red, yellow, and purple How could markers. Three of the markers are yellow, and four are purple. you find how many markers are red? Tammy has a box of ten markers. She has red, yellow, and purple markers. Three of the markers are yellow, and four are purple. How could you find how many markers are red? Step 2 Step 1 10 Tammy Y | P R box of markers 3 red markers 4 ] ? Step 3 Step 4 10 - 3 7 - 4 Subtract 3 from 10. Subtract 4 from the difference. 7 3 What's a another way? Second Grade
and Victoria’s parents spent $81 at the shoe store. Victoria’s shoes cost $24, The rest of the money was spent on her brother her sister’s shoes cost $29. Victoria’s parents spent $81 at the shoe store. Victoria’s shoes cost $24, and her sister’s shoes cost $29. The rest of the money was spent on her brother Carlos’ shoes. How much money was spent on Carlos’ shoes? Carlos’ shoes. How much money was spent on Carlos’ shoes? Step 1 Step 2 $81 V S C V. parents money ] $29 Money Carlos’ shoes $24 ? Step 3 Step 4 $57 -$29 Subtracted $24 from $81. Subtracted $29 from $57. $81 _ $24 81 – 24 - 29 $28 $57 Ecourage students to see multiple ways!
and Victoria’s parents spent $81 at the shoe store. Victoria’s shoes cost $24, The rest of the money was spent on her brother her sister’s shoes cost $29. Victoria’s parents spent $81 at the shoe store. Victoria’s shoes cost $24, and her sister’s shoes cost $29. The rest of the money was spent on her brother Carlos’ shoes. How much money was spent on Carlos’ shoes? Carlos’ shoes. How much money was spent on Carlos’ shoes? Step 2 Step 1 $24 ] Victoria Sister Carlos Shoes Shoes Shoes Money Carlos’ shoes $29 $81 ? Step 3 Step 4 $24 + $29 $81 - $53 Find the sum of $24 and $29. Subtracted the sum from $81. $28 $53