conceptsstudentsmaywant#to#explore#about#even#and#odd#numbers.## Timeframe:# 1hour# CommonCoreStandard(s):# &2.OA.3Determine#whether#a#group#of#objects#(up#to#20)#has#an#odd#or#even#number#of#members,#e.g.,# by#pairing#objects#or#counting#them#by2s;#writean#equation#to#express#an#even#numberas#a#sum#oftwo# … Distribute one sheet of paper and 15 counters to each student or pair of students. NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to Have students use their green crayons to continue the pattern on the charts up to the number 50. 486 0 obj <>/Filter/FlateDecode/ID[<302F56F2B99E0D4BAD7F00EF14F58667>]/Index[428 90]/Info 427 0 R/Length 230/Prev 469288/Root 429 0 R/Size 518/Type/XRef/W[1 3 1]>>stream Model this process for students, and then have them use counters to find which numbers are odd or even. The rules for that are extremely simple: tr:nth-child(even) {background: #CCC} tr:nth-child(odd) {background: #FFF} Say: Show 3 groups of 5 counters. Multiplying.

Ask students to circle one even number and one odd number between 20 and 50 on thier charts. Students will explain why numbers ending in 1,3,5,7,9 are odd and numbers ending in 0,2,4,6,8 are even. Write several numbers between 50 and 100 on the chalkboard, and ask students to identify whether each is odd or even. Students will identify odd and even numbers and patterns in number sequences. If divided by the number two, always there is a fraction in the result. Feel free to use the counters I placed on your desk. Students will probably skip count by 5 to find the answer, 15. endstream endobj startxref Even and odd rules. Continue through until 9. With the help of certified and current classroom teachers, TeacherVision creates and vets classroom resources that are accurate, timely, and reflect what teachers need to best support their students. The concepts of odd and even numbers are somewhat bewildering to many young children, so having a method to model numbers that clearly shows the difference between odds and evens is crucial. A hundreds chart is used to show the alternating pattern of odd and even numbers, and students are asked to extend the pattern to identify additional odd and even numbers. Ask: What multiplication sentence describes the model? endstream endobj 429 0 obj <>/Metadata 24 0 R/Outlines 41 0 R/PageLayout/OneColumn/Pages 426 0 R/StructTreeRoot 78 0 R/Type/Catalog>> endobj 430 0 obj <>/ExtGState<>/Font<>/XObject<>>>/Rotate 0/StructParents 0/Tabs/S/Type/Page>> endobj 431 0 obj <>stream Encourage students to arrange the counters in groups of 10.

The making of two rows highlights the fact that even numbers are always divisible by two. Early Years Foundation Stage; US Kindergarten. 0 FEN Learning is part of Sandbox Networks, a digital learning company that operates education services and products for the 21st century. To support this aim, members of the Base-10 blocks can be used to model the variety of ways a number can be represented, and to model regrouping when adding, subtracting, multiplying, and dividing. 428 0 obj <> endobj and see if there is an odd man out. This choice board is a great way for your students to practice their weekly spelling words. Thus, we find that the factors of 12 are: 3, 4, 2, 6, 1 and 12. h��ϭkBa��}�z�_L-� ~$˂hZؒ�5��8LC�I���E?�k f��f�1���9������ϣ�ȣh�7Tf?4P��{ü������[:�!�y =5NN���V��6e��a?��#{�o>`� ���_�ȩ?�q�/�Ї�z���Wī0CM��.ta� One way to improve the readability of large tables is to color alternating rows. Further explain that if there is an unpaired counter, or a counter is left over, then the number is odd. The following array, consisting of four columns and three rows, could be used to represent the number sentence 3 x 4 = 12. Select from a monthly, annual, or 2-year membership plan starting at $2.49/month. Two of the popsicle sticks pair up but we have one stick that is left out (an odd man out).” So three is odd.” Put 3 in the odd column. All rights reserved. Resources •Counters / straws •Hundreds Board •Odd or even - investigation sheet •1-100 cards •Calculator •Individual whiteboards and washable pens •FISH Kit . Show students how to tell whether a number from 1 to 6 is even or odd using counters. An array is formed by arranging a set of objects into rows and columns. When we add (or subtract) odd or even numbers the results are always: Operation Result Example (red is odd, blue is even) Even + Even: Even: 2 + 4 = 6: Even + Odd: Odd: 6 + 3 = 9: Odd + Even: Odd: 5 + 12 = 17: Odd + Odd: Even: 3 + 5 = 8 (The same thing happens when we subtract instead of adding.) Ask: What is the total number of counters?

Show students how to tell whether a number from 1 to 6 is even or odd using counters. The concepts of odd and even numbers are somewhat bewildering to many young children, so having a method to model numbers that clearly shows the difference between odds and evens is crucial. “Now, working in even number groups I want you to figure out which column 15, 23, and 34 belong in. Grid paper can be useful for recording the findings of such investigations. Odd numbers are numbers that are not multiples of 2. Another approach to discovering factors of numbers is to begin with a particular whole number and make as many different rectangular arrays as possible - see the. Even numbers can be made into two-row arrays, but odd numbers cannot - there being always one item left over. Before drilling and memorising tables, children must understand how these facts are derived. The NRICH Project aims to enrich the mathematical experiences of all learners. Rev up remote learning with a virtual field trip. Is Zero an Even Number? For example, the table below has a light gray background for the even rows and white for the odd ones. children to draw upon as they begin to use and memorise the basic number facts. Place-value mats can be used to show each digit's place value when using base-10 blocks. For example, by progressively adding another column of three objects, children can build the three-times tables for themselves. Exploring factors in this way will lead to the discovery that some numbers can be made into more than one array (that is; composite numbers), and some numbers can only be represented by one-row arrays (that is; prime numbers). %%EOF 517 0 obj <>stream Odd numbers definition. Odd numbers are in between the even numbers. Use promo code TOGETHER at checkout to claim this limited-time offer. University of Cambridge. Copyright © 1997 - 2020. Each column must contain the same number of objects as the other columns, and each row must have the same number as the other rows. Problems such as those below can provide consolidation of the discoveries made by young children. Number Lines & Place-Value Charts Slideshow. TeacherVision is part of the FEN Learning family of educational and reference sites for parents, teachers and students. Students will recognise and describe numbers as odd and even by grouping collections in twos, or skip counting. In this lesson, the concept of odd and even numbers is explored using manipulatives. Another investigation of factors using arrays is the search for numbers that can form square arrays; namely, the square numbers . If you divide 0 by number 2, the result is always 0 and is corresponding to the definition of an even number, no remainder if divided by the number 2. A hundreds chart is used to show the alternating pattern of odd and even numbers, and students are asked to extend the pattern to identify additional odd and even numbers. Objective This lesson is for students in the primary grades who are familiar with place-value manipulatives, can identify the... ObjectivesStudents' will learn shapes and colors.MaterialsClear tupperware covers or clear drink lidsColorful tissue RibbonClear... Connect music and literature with these printable lyrics to "Ten Little Monkeys". Our best resources for teaching and learning. Two-sided counters can be used to model one-to-one correspondence, addition and subtraction, or skip-count.

Ask students to continue to use this method to find all the even numbers up to 20, recording them on the charts using a green crayon. Cancel anytime. [Ŕ5�j�����Sˌ��:���N���:`z�p΄T:� �#�H (rŤ �5��c����-SR"�1����g��:0����:�f%ǎdNYŜ�����;��c���,�J����GZ;��~Hz� �������ʓ�e1͋�����a�A����d�|�'�H�3.��5�����Y�-�՟y'�ɰ,6��CV䋒�d��R��w���a��b�,��+?̱~�3i�P�'Μ���U����d��_d�|ʴV `-��7䤜B'!�Z�'F-�I�8����p��l���]'7��!�'�g.
Elicit that the digit in the ones place in each even number is 0, 2, 4, 6, or 8. %PDF-1.5 %���� Discuss how the chart has alternating stripes, or columns, and ask students what is the same in each green-colored column (the digit in the ones place in each number) and what is different (the digit in the tens place). h��Zmo�8�+�thpH�wR��g��I���,����&�:�!�h��of(ʒ�ػ���1%5����#6�;ƙ�� MʄQL��IЩ`�[h%S professionally created teacher resources. Discuss their findings. This representation not only assists in understanding the process, but provides a visual image for embed rich mathematical tasks into everyday classroom practice.

Ask students to describe patterns they see on their charts, and elicit that every other number is green, or even. Arrays can be used for building multiplication facts in a meaningful way. Explain that if the number of counters can be arranged so each counter is paired with another, the number is even. Arrays are useful models for multiplication which can be used in a variety of ways, ranging from highly structured lessons to games and open investigations. Have students use the green crayon to color the squares with the numbers they identify as even on their hundreds charts. V��ܿ�i=����k�}��4}����w�k��D�����o�vֿ �+':

h�b``d``g`c`���A��X��,s��8��� fQ�й��� ����P�� �+g�[�-��,R���j�T�����h����"��))nк��!��;3�,8�|��Q�r��C����h�0������NJ�C���ƾAWR��Ky����-9������l���4#�g;s$����@���� ��b`W{Q�� � +1;$ Adding and Subtracting . Children are sure to enjoy learning this bed... Students learn how to solve music and math problems by finding patterns.ObjectivesStudents will identify patterns in notation and... Asian American and Pacific Islander Heritage Month. Then ask students to have their partner use counters to verify their choices. Even numbers can be made into two-row arrays, but odd numbers cannot - there being always one item left over. Explain that if the number of counters can be arranged so each counter is paired with another, the number is even. Further explain that if there is an unpaired counter, or a counter is left over, then the number is odd.

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