Objectives & Outcomes
Integers are whole numbers but can be whole numbers both greater than or less than zero. Integers are easiest to understand with a number line. Whole numbers that are greater than zero are called natural, or positive numbers.
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- Find 10 more or 10 less.
They increase as they move to the right away from the zero. Negative numbers are below or to the right of the zero. Number names grow bigger with a minus for "negative" in front of them as they move away from the zero to the right.
Numbers growing larger, move to the left. Numbers growing smaller as in subtraction move to the right.
Less Than Zero Lesson | Education Resources | St. Louis Fed
Grade 6, the Numbers System NS6 Students will apply and extend previous understandings of numbers to the system of rational numbers. We emphasize the use of the number line rather than counters or fingers when students are learning operations so that practice with the number line will make understanding natural and negative numbers much easier.
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Counters and fingers are fine to establish one to one correspondence but will become crutches rather than supports for higher level math. The pdf number line is for positive and negative integers. The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones. The numbers 10, 20, 30, 40, 50, 60, 70, 80, 90 refer to one, two, three, four, five, six, seven, eight, or nine tens and 0 ones. Understand that in adding two-digit numbers, one adds tens and tens, ones and ones; and sometimes it is necessary to compose a ten.
Given a two-digit number, mentally find 10 more or 10 less than the number, without having to count; explain the reasoning used. Understand that the three digits of a three-digit number represent amounts of hundreds, tens, and ones; e.
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The numbers , , , , , , , , refer to one, two, three, four, five, six, seven, eight, or nine hundreds and 0 tens and 0 ones. Read and write numbers to using base-ten numerals, number names, and expanded form. Add up to four two-digit numbers using strategies based on place value and properties of operations. Understand that in adding or subtracting three- digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.
Mentally add 10 or to a given number —, and mentally subtract 10 or from a given number — Explain why addition and subtraction strategies work, using place value and the properties of operations. Use place value understanding to round whole numbers to the nearest 10 or Multiply one-digit whole numbers by multiples of 10 in the range 10—90 e. Explain patterns in the number of zeros of the product when multiplying a number by powers of 10, and explain patterns in the placement of the decimal point when a decimal is multiplied or divided by a power of Use whole-number exponents to denote powers of Read and write decimals to thousandths using base-ten numerals, number names, and expanded form, e.
Accept cookies. Lesson Plan. Have students share their ideas on how to determine and display the number that is one more, one less, ten more, and ten less.
Write various one- and two-digit numbers on the board. Have students write the number that is one more, one less, ten more, or ten less. If students need to, allow them to continue using manipulatives to do this. Odd and Even Numbers Lesson. Number Sense, Vol. Spend more time teaching and less time searching.
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Manual Seelenreise zu Ihrer Heilung (German Edition)
Cancel anytime. Learn more about Premium. Manage My Favorites. Objective This lesson is for students in the primary grades who are familiar with place-value manipulatives , can identify the number that is one more or one less than a given two-digit number, and can count by tens to Materials place-value manipulatives overhead projector, if desired Procedure Demonstration Display the place-value manipulative that students will be using on the overhead projector or in some area of the classroom that all students can see.
Guided Practice Have a variety of representations available for students to use such as place-value blocks, bean sticks, symbols, number lines, and hundreds charts. Sharing Ideas Write a two-digit number on the board. Independent Practice Write various one- and two-digit numbers on the board. Assessment Assess students by reviewing the work they do for independent practice.
Mathematics 4, Numbers and Number Sense