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Math Adventures: Discovering ‘One Less’ – Greet our young mathematicians – Today’s journey: ‘One Less’ – Understand ‘One Less’ up to 10 – If we have 5 apples and take 1 away, we have 4 apples left. – Fun with subtraction! – Practice by taking 1 block away from a stack. | Welcome the students warmly to the class and introduce them to the concept of ‘One Less’. Explain that ‘One Less’ means taking away one from any number to find the number before it. Use tangible examples like apples or blocks to illustrate the concept, as this helps young learners grasp the idea of subtraction in a concrete way. Engage the students with hands-on activities where they can physically remove an item to see the result. This will help them understand that ‘One Less’ is an easy way to subtract one and find the previous number in a sequence up to 10.

Understanding ‘One Less’ – ‘One less’ with ducks – Imagine 5 ducks, 1 waddles away, now there are 4! – Taking one away – Counting down from 10 – Let’s say 10, 9, 8, … down to 1 together. – Practice ‘one less’ – We’ll use toys to practice taking 1 away. | This slide introduces the concept of ‘one less’ to Kindergarten students in a fun and relatable way. Use the example of ducks to visualize the concept; if there are 5 ducks and one leaves, there are now 4. This tangible example helps children understand subtraction in real-world terms. Encourage the students to count backwards from 10 with you, reinforcing the idea of ‘one less’ with each count. For the activity, provide toys or objects that the students can physically remove one from to see the result. This hands-on approach will help solidify the concept. Be prepared with different sets of objects to ensure each child has a chance to participate actively.

Counting Down: One Less Than – Start at number 10 – What’s before 10? – The number before 10 is 9 – Count down using fingers – Use your hands to help count – One less, one finger down – Each time, fold one finger to count one less | This slide is aimed at helping Kindergarten students understand the concept of ‘one less’ by using a visual and physical method of counting down from 10 using their fingers. Start by asking the class to hold up 10 fingers. Then, as you count down from 10, have them fold down one finger for each number to visually represent ‘one less.’ Reinforce the concept by repeating the activity and asking students what number comes before the current one. This tactile approach helps solidify the concept of subtraction as ‘taking one away.’ Encourage students to say the numbers out loud as they count down. This activity can be done as a group or individually, and it’s a great way to make learning interactive and fun.

One Less Than 10: Counting Toy Cars – Start with 10 toy cars – Take one car away – Count the cars left – How many are left now? – Understand 10-1=9 – Now there are 9 cars! We subtracted one. | This slide is designed to teach Kindergarten students the concept of ‘one less’ using a tangible example of toy cars. Begin by visually presenting 10 toy cars to the class. Then, physically remove one car in front of them and ask the students to count how many cars are left. This interactive approach helps them understand subtraction in a concrete way. Reinforce the concept by writing the equation ’10-1=9′ on the board and explaining that taking one away from ten leaves us with nine. Encourage the students to think of other examples where they have ‘one less’ of something to solidify their understanding.

Understanding ‘One Less’: Apples Example – Start with 5 yummy apples – Imagine eating one apple – How many apples left? – Think, if we take 1 away from 5, what’s left? – Yes, 4 apples! 5-1=4 – It’s like taking away 1 block from a stack of 5 blocks | This slide is designed to teach Kindergarten students the concept of ‘one less’ using a relatable and visual example of apples. Start by showing them a picture or a real example of 5 apples, then ask them to visualize eating one of the apples. Prompt them to count how many apples are left to reinforce the concept that when we take one away, we have one less. The equation 5-1=4 can be illustrated by physically removing an apple from a group or by drawing a picture. Encourage the students to use their fingers to count and to understand that subtraction means taking away. This simple activity helps build the foundation for understanding subtraction and the concept of ‘one less’.

Practice Time: The ‘One Less’ Game – Practice ‘one less’ with numbers up to 10 – I’ll show a number, you say ‘one less’ – Understand ‘one less’ means the number before – If I show ‘5’, what’s ‘one less’? It’s ‘4’! – Get ready to play and have fun! | This slide is designed to engage Kindergarten students in a fun and interactive game to help them understand the concept of ‘one less’. Start by showing a number and asking the students to identify the number that is ‘one less’. Use visual aids like number lines or fingers to help them count backward. Encourage participation and praise correct answers to reinforce learning. Be prepared with a list of numbers up to 10 and ensure each student has a chance to respond. This activity will help solidify their understanding of basic subtraction and number order.

Class Activity: ‘One Less’ Hunt – Let’s go on a ‘One Less’ hunt – Find grouped objects in class – Tell me what is ‘one less’ – If you see 5 blocks, ‘one less’ is 4 blocks – Work as a team to find answers | This interactive activity is designed to help Kindergarten students understand the concept of ‘one less’ in a fun and engaging way. Set up the classroom with various objects grouped together. Encourage the students to explore the room and find different groups of items. When they find a group, they should determine what ‘one less’ of that group would be and share it with the class or a partner. For example, if they find a group of 6 crayons, they should figure out that ‘one less’ means there would be 5 crayons. Provide guidance and ensure that each student has a chance to participate. Consider having different stations with a set number of items for a more structured approach. This activity promotes teamwork, counting skills, and the practical application of subtracting one from a given number.

Conclusion and Goodbye! – Great job with ‘one less’ – ‘One less’ means one away – Like 5 – 1 is 4, that’s one less! – You’re all math stars! – See you in our next lesson! | This slide wraps up the lesson on finding ‘one less’ up to 10. Reinforce the concept by reminding students that ‘one less’ simply means taking one away from a number. Praise their efforts and progress in understanding this fundamental math concept. Encourage them by calling them ‘math stars’ to boost their confidence. Let them know you look forward to seeing them in the next class, fostering a sense of anticipation for continued learning. Prepare to answer any last-minute questions they might have about the day’s lesson.