Resources to mark the 100th day of school with math activities. Challenge students to generate 100 different ways to represent the number 100. Students will easily generate 99 + 1 and 50 + 50, but encourage them to think out of the box. Challenge them to include examples from all of the NCTM Standards strands: number sense, numerical operations, geometry, measurement, algebra, patterns, data analysis, probability, discrete math, Create a class list to record the best entries. Some teachers write 100 in big bubble numeral style and then record the entries inside the numerals.

Title:  10 for the Win!Grade: Kindergarten Overall Goal: To have students be able to count by multiples of 10 and comprehend the idea of a sequence of steps involved in a process.  StandardsLearning ObjectiveAssessment5d Students understand how automation works and use algorithmic thinking to develop a sequence of steps to create and test automated solutions. K.NS.1: Count to at least 100 by ones and tens and count on by one from any number.Students will be able to program the beebots to go the correct distance. Students will be able to count to 100 by tens.The students will have to use the beebots to move forward the correct amount of steps. The students will have the squares the beebot travels represent sets of 10.  Key Terms & Definitions: Sequence- certain order in which steps flowSkip counting- skipping numbers while counting, counting by multiples Number line- line which shows number in order, often marked at intervalsProgram- provide machine with coded instructions to perform task  Lesson Introduction (Hook, Grabber): 10 Students will paint hands and stamp them on paper! Each set of hands will represent a set of 10. We will do this all the way up to 100. This paper will be hung in the front of the classroom as a reminder of multiples of 10. Lesson Main:After hanging up our poster with the hands displaying multiples of 10, the teacher would count with the class by 10’s all the way up to 100, while referring to the poster so they can follow along.We will also pass out a number line to the students that highlights 10’s so they have a reference if they struggle.We will make a number line and write multiples of 10 along the side. We will measure out the space between numbers so that it is equal to the length the Beebot travels for each time the button is pushed. For example, if the student wanted to get to 30, they would have to know that you count up by saying “10, 20,30” and they would need to press the forward button on the Beebot 3 times. Each press of the button is a multiple of 10. For this activity, the teacher will break up the students into small groups and they will work together. They will draw a card which will have a multiple of 10 on it ranging from 10-100. The students will have to decide how many 10’s it takes to count up to that number, as well as how many times they will need to program the Beebot to reach the answer on the number line.   Lesson Ending:For the lesson ending, we will regroup as a class and talk about how we felt the Beebot activity went. Then we will count together by 10’s up to 100 again to reiterate what we have been learning. Lastly, we will pass out a worksheet to the students which we have included a link to under our resources, and have them complete it individually. This will give us an idea of the students understanding of this concept and can be used for our assessment.  Assessment Rubric: GreatAveragePoorIndicatorDescriptionDescriptionDescriptionHand Cut-outsStudent participated in the tracing and cutting out of hands.Student partially participated in the tracing and cutting out of hands.Student failed to participate in the tracing and cutting out of hands.Beebot activityStudent was able to successfully move the Beebot to correct answer.Student was able to move the Beebot, but not to the correct answer.Student was unable to move the Beebot and was unable to correctly answer.WorksheetStudent was able to correctly fill out the entire worksheet.Student was able to fill out 70% of the worksheet.Student was unable to fill out at least 70% of the worksheet.  Resources / Artifacts: Number line for students https://www.helpingwithmath.com/printables/others/lin0301number11.htmWebsite which has handprint idea on it https://www.theclassroomkey.com/2016/02/big-list-skip-counting-activities.htmlLesson assessment used in the lesson ending https://www.pinterest.com/pin/287597126178910688  Differentiation:       Differentiation for ability levelsIf a student really struggled with math skills, we could place them in a group with stronger math students. We could also offer an alternative activity for the Beebot timeline where we made the timeline go up by smaller multiples. For the worksheet, they could receive a longer amount of time to work on it and have directions read to them/receive help as needed.        Differentiation for access & resourcesIf the school had limited resources and did not have access to these robots, they could use other tools like toy cars or something they could use to roll to the spots on the timeline. The game could be altered to fit a large variety of resources. The worksheet we used was found online but a similar version could be created by the teacher. Anticipated Difficulties: Some students might struggle with the concept of skip counting. It may be hard at first for them to remember the multiples of 10. Hopefully by making a poster and providing them with their own number line for reference, this will eliminate some potential difficulties the students may have. 

This activity is designed to determine the appropriate instructional level for a student in a one-on-one interaction with the teacher.

In this assessment in a one-to-one setting, a student is shown the numbers from 1Đ10, one number at a time, in random order. The teacher asks, Ňwhat number is this?"

This assessment task can be used with a single student or a small group of students. Each student needs his or her own set of numeral cards.

This assessment may be used in a small group or whole group setting, give each student a piece of paper. Students who have trouble writing certain numbers can then get targeted practice.

This task suggests methods of introducing and continuing choral counting in the classroom.

The objective of this lesson is to gain automaticity counting to 100 and to establish the importance of multiples of ten. The final goal of this lesson is for students to be able to count by tens and articulate the term for this.

This task supports students in correctly writing numbers. Because students have to trace the number, instead of coloring in a bubble with the number in it or circling the correct number, they gain handwriting practice as well as counting and addition practice.

This game will reinforce number before and after as well as reading and sequencing numbers.

Up to this point in Grade K, students have worked intensively within 10 and have often counted to 30 using the Rekenrek during fluency practice. This work sets the stage for this module where students clarify the meaning of the 10 ones and some ones within a teen number and extend that understanding to count to 100.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

This counting activity is done in pairs and helps reinforce the concepts of greater than, less than, and equal to.

(Nota: Esta es una traducción de un recurso educativo abierto creado por el Departamento de Educación del Estado de Nueva York (NYSED) como parte del proyecto "EngageNY" en 2013. Aunque el recurso real fue traducido por personas, la siguiente descripción se tradujo del inglés original usando Google Translate para ayudar a los usuarios potenciales a decidir si se adapta a sus necesidades y puede contener errores gramaticales o lingüísticos. La descripción original en inglés también se proporciona a continuación.)

Hasta este punto en el Grado K, los estudiantes han trabajado intensamente dentro de 10 y a menudo han contado a 30 utilizando el Rekenrek durante la práctica de fluidez. Este trabajo prepara el escenario para este módulo donde los estudiantes aclaran el significado de los 10 y algunos dentro de un número adolescente y extienden esa comprensión para contar hasta 100.

Encuentre el resto de los recursos matemáticos de Engageny en https://archive.org/details/engageny-mathematics.

English Description:
Up to this point in Grade K, students have worked intensively within 10 and have often counted to 30 using the Rekenrek during fluency practice. This work sets the stage for this module where students clarify the meaning of the 10 ones and some ones within a teen number and extend that understanding to count to 100.

Find the rest of the EngageNY Mathematics resources at https://archive.org/details/engageny-mathematics.

This number line up activitiy gets students out of their seats and helps reinforce the counting sequence.

This activity is played in pairs and gives students practice reading numbers out loud and tracing them.

The intent of clarifying statements is to provide additional guidance for educators to communicate the intent of the standard to support the future development of curricular resources and assessments aligned to the 2021 math standards.  Clarifying statements can be in the form of succinct sentences or paragraphs that attend to one of four types of clarifications: (1) Student Experiences; (2) Examples; (3) Boundaries; and (4) Connection to Math Practices.

The Playful Learning Challenge's Pre-K and Kindergarten Math Activities Kit contains a series of 10 research-based early math activities centered around play, that can be used with simple materials in children's classrooms or homes.

This activity can be played by pairs of students to support writing numbers.