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Fun with Addition: Doubles Plus One – Learn a fun way to add numbers – What are ‘Doubles Plus One’? – If you know 6+6, then 6+7 is just one more! – How ‘Doubles Plus One’ speeds up adding – This trick lets you add faster than counting each number – Practice with examples – Try 4+4. Now, what’s 4+5? | This slide introduces the concept of ‘Doubles Plus One’ as an addition strategy for first graders. Begin by engaging the students with the idea that adding can be fun and easy. Explain ‘Doubles Plus One’ by using familiar doubles they already know and then adding one more to it. For example, if they know that 2+2 equals 4, then 2+3 is just one more, which makes 5. Emphasize how this strategy can help them add numbers more quickly than counting one by one. Encourage them to practice this strategy with several examples and to share their answers with the class. Provide guidance and positive reinforcement as they work through the examples.

Learning to Add: Doubles Plus One – What are doubles in addition? – Two same numbers added together, like 2+2. – Examples of simple doubles – Like 1+1=2, 2+2=4, and 3+3=6. – Practice doubles with the class – We’ll add doubles as a group activity. – Understanding ‘Doubles Plus One’ – After learning doubles, we add one more to it. | This slide introduces the concept of doubles in addition, which is a foundational strategy for first graders learning to add numbers up to 20. Start by explaining that doubles are simply two of the same number added together. Provide clear examples using small numbers to ensure understanding. Engage the class with a practice activity where they can participate in finding doubles together. After they are comfortable with doubles, introduce the concept of ‘Doubles Plus One,’ which is adding one more to the sum of doubles. This will set the stage for further activities where they apply this strategy to solve addition problems.

Doubles Plus One Strategy – Understand almost doubles – Numbers like 2+3 are almost doubles – Use doubles to add – Example: Adding 2 + 3 – If 2+2 is 4, then 2+3 is one more: 5 – Practice with more sums – Try with different numbers to learn | This slide introduces the ‘Doubles Plus One’ strategy for addition, which helps students use their knowledge of doubles to solve nearly double sums. Start by explaining that some numbers are just one more than doubles, like 2+3. If students know that 2+2 equals 4, then they can easily find 2+3 by adding one more, resulting in 5. Encourage students to apply this strategy to other sums, such as 3+4, by first finding the double (3+3) and then adding one. Provide several examples and practice opportunities to reinforce the concept.

Let’s Practice Together: Doubles Plus One – Understand doubles addition – Solve examples as a class – Example: 4+4 equals 8 – Doubling 4 gives us 8 – Find 4+5 using doubles plus one – Since 4+5 is one more than 4+4, we add 1 to 8 to get 9 | This slide is designed to engage students in a group activity to understand the concept of ‘doubles plus one’ as an addition strategy. Start by explaining that ‘doubles’ are two of the same number added together, like 4+4. Then, show that ‘doubles plus one’ means adding one more to the double. Use the example provided to demonstrate the concept. Ask the students to solve 4+5 by first finding the double (4+4=8) and then adding one more to get the answer (8+1=9). Encourage the students to use their fingers or counters to visualize the concept. This interactive approach helps solidify their understanding of addition strategies up to 20.

Your Turn to Try: Doubles Plus One – Solve ‘Doubles Plus One’ problems – Use ‘Doubles Plus One’ strategy for addition – Partner up for the worksheet – Work together and discuss your answers – Ask for help when needed – Don’t be shy to raise your hand for assistance – Have fun with math! | This slide is designed to engage students in a hands-on activity to practice the ‘Doubles Plus One’ addition strategy. Pair up the students and distribute the worksheets. Encourage them to communicate and work collaboratively to solve the problems. Remind them that it’s okay to ask for help if they’re stuck. Monitor the class and provide assistance as needed. Possible activities: 1) Have students use physical objects to visualize the doubles. 2) Create a game where students race to find ‘Doubles Plus One’ pairs. 3) Allow students to act out scenarios that represent ‘Doubles Plus One’. 4) Use flashcards to reinforce the concept. 5) Have a group discussion after the activity to reflect on what they learned.

Class Activity: Doubles Plus One Bingo – Understand ‘Doubles Plus One’ – Solve and cover the correct answer – Use ‘Doubles Plus One’ to find answers – Aim for five in a row on Bingo card – Celebrate the winners! – Recognize and applaud peers’ success | This interactive Bingo game is designed to help first graders practice the ‘Doubles Plus One’ addition strategy. Provide each student with a Bingo card filled with answers to ‘Doubles Plus One’ problems. As you call out problems, students will solve them and cover the corresponding answer on their cards. The goal is to get five correct answers in a row. This activity not only reinforces their addition skills but also encourages attention and quick thinking. Possible variations include playing in small groups, using different patterns on the Bingo card, or having a ‘Bingo challenge’ where students create their own problems for peers to solve.

Conclusion: Mastering ‘Doubles Plus One’ – Celebrate learning ‘Doubles Plus One’ – Use doubles to add fast – If you know 6+6, then 6+7 is just one more! – Practice makes perfect – Keep practicing at home! – Try with different numbers and get quicker! | Well done to all the students for learning the ‘Doubles Plus One’ strategy! This slide is a wrap-up and encouragement for students to continue practicing this addition strategy. Remind them that knowing their doubles can help them add numbers more quickly, as ‘Doubles Plus One’ is simply adding one more to the double they already know. Encourage them to practice this method at home with different numbers to become more confident and faster in their addition skills. You can suggest parents to create simple flashcards or play addition games to reinforce this concept.