Addition Word Problems - Sums To 20
Subject: Math
Grade: Second grade
Topic: Addition: One Digit
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Welcome to Addition!
– Becoming addition experts today
– Addition’s role in daily life
– Counting apples, sharing cookies, etc.
– Solving word problems
– Stories with numbers to add
– Sums up to 20
– Adding numbers between 0 and 20
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This slide introduces the concept of addition and its practical applications in everyday life for second graders. Emphasize the importance of addition as a fundamental math skill that helps with simple daily tasks like counting and sharing. Explain that word problems are like little stories where we use addition to find answers. Encourage students to think of addition as a fun activity rather than a challenge. Provide examples of simple addition problems and guide students through the process of solving them, ensuring they understand that the sums will not exceed 20. This sets the stage for interactive activities where students will practice adding numbers within this range.
Understanding Addition: Sums to 20
– Addition combines numbers
– ‘Addends’ are numbers we add
– Addends are like ingredients in a recipe
– ‘Sum’ is the total of addends
– Sum is like the final dish made
– Example: 7 + 8 equals 15
– 7 and 8 are addends; 15 is the sum
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This slide introduces the basic concept of addition to second graders. Start by explaining that addition is like putting together pieces of a puzzle to see the whole picture. The pieces (addends) are combined to find the total (sum). Use simple, relatable examples like combining apples or stacking blocks to illustrate the concept. For instance, if you have 7 apples and get 8 more, you end up with 15 apples in total. Encourage students to think of addition as a way of bringing things together and emphasize that the sum is always the end result of this process. Practice with a few more examples to ensure understanding.
Reading Addition Word Problems
– Word problems are number stories
– Read carefully to know what to add
– Look for clues to add numbers
– Clues like ‘in total’, ‘altogether’, ‘combined’ mean we add
– Practice with an example problem
– E.g., ‘Tom has 5 apples, and Sue gives him 3 more. How many in total?’
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This slide introduces students to the concept of addition word problems, emphasizing the importance of reading the problem text carefully to identify the operation required in this case, addition. The slide points out key phrases that often indicate an addition problem. It’s crucial to guide students to recognize these clues and understand that they signal the need to combine numbers. Provide an example problem and solve it together as a class, demonstrating how to use the clues to determine that addition is necessary. Encourage students to visualize the problem and use objects or drawings to represent the numbers being combined. This will help them better grasp the concept of ‘sums to 20’ in a tangible way.
Adding Toys: Word Problem
– Counting balls and kites
– If we have 5 balls and 3 kites, how many are there?
– Adding numbers together
– We use addition: 5 balls + 3 kites equals?
– Finding the total amount
– Add the two amounts to find the sum: 5 + 3
– Understanding addition
– Addition helps us combine quantities to find a new total
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This slide introduces students to the concept of addition through a relatable word problem involving toys. Start by reading the problem aloud and asking the students to visualize the scenario. Guide them through the process of identifying the quantities to be added (5 balls and 3 kites). Encourage them to perform the addition themselves and come up with the total number of toys. Reinforce the idea that addition is a way of finding out how much we have altogether when we combine two or more groups. After explaining, give the students similar word problems to solve independently or in pairs to solidify their understanding.
Let’s Practice Together: Addition Word Problems
– Read the word problem aloud
– Identify the numbers and items
– Look for numbers and objects involved
– Understand what we’re adding
– Are we adding apples, minutes, or something else?
– Calculate the sum for the total
– Add the numbers to find how many items in total
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This slide is designed to engage students in a collaborative problem-solving activity. Start by reading a word problem to the class, then guide them to identify the key numbers and the context of what is being added. Discuss the importance of understanding the problem before solving it. Encourage students to think about the items being added as tangible objects to help them visualize the problem. After identifying the elements, work through the addition together, ensuring that students understand each step. Conclude by finding the sum and explaining how it represents the total number of items. Prepare a few examples with sums up to 20 to practice as a class.
Your Turn to Solve: Addition Word Problems
– Read the problem carefully
– Find the numbers to add
– Write the addition sentence
– Example: If Sam has 3 apples and gets 5 more, write 3 + 5 = ?
– Solve for the sum
– Add the numbers together to find the total amount
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This slide is an interactive activity for students to practice solving addition word problems with sums up to 20. Encourage students to read the problem multiple times to understand it fully. They should identify key numbers and words that indicate addition. Guide them to translate the word problem into an addition sentence, then solve for the sum. Provide several examples of word problems for them to solve, and be ready to assist if they encounter difficulties. For instance, ‘Lisa has 2 balloons, and her friend gives her 4 more. How many balloons does Lisa have now?’ The students should write down 2 + 4 = 6 and solve it. This exercise will help reinforce their understanding of addition within 20 and improve their problem-solving skills.
Class Activity: Addition Scavenger Hunt
– Let’s go on a scavenger hunt!
– Find items in pairs to add
– For example, 7 pencils + 8 pencils = ?
– Make sums up to 20
– Remember, the total must not exceed 20
– Work in teams for more fun
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This interactive activity is designed to help students practice addition in a fun and engaging way. Set up the classroom with various items that students can count and add together. Encourage them to find items in pairs and use their addition skills to make sums up to 20. They should work in teams to foster collaboration and to solve as many addition problems as they can within a set time limit. Provide guidance on how to approach the activity and ensure fair play. Possible variations of the activity could include: using different items for each team, timed rounds, or offering small rewards for the team with the most correct sums. This activity will help reinforce their understanding of addition within 20 and demonstrate practical application of math skills.
Becoming an Addition Star!
– Congratulations on learning addition!
– Practice is key to success
– The more you practice, the better you’ll get
– Keep practicing for mastery
– Try solving problems every day
– You’re on your way to being an addition star!
– Soon, you’ll solve addition problems easily!
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This slide is meant to celebrate the students’ achievements in learning how to solve addition word problems with sums up to 20. It’s important to encourage them to continue practicing their new skills. Regular practice will help them become more confident and proficient in addition. As a teacher, you can provide them with extra worksheets, suggest math games, or encourage them to create their own word problems to solve at home. Recognize their hard work and progress, and remind them that every math star started with learning the basics, just like they are doing now.