Curated OER
Show Me the Number
Second graders develop the ability to show two-digit numbers using place value attributes in the early additive stage five. They utilize the manipulative's of sticks, rubber bands, counters, small canisters and uni-link cubes to assist...
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100 More 100 Less
Third graders review the concept of place value and number sense. With a partner, they are given four cards with numbers on them. Using the cards, they practice making new numbers and completing addition and subtraction to find the...
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Calc-You-Late Magnitudes
First graders are introduced and practice using a calculator. Individually, they enter and complete simple addition and subtraction problems. After the answer is displayed, they identify the place value for ones, tens, and hundreds...
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Math Lesson: Just How Many is a "Million Dead"?
Students are able to convert large numbers into meaningful ratios. They are able to conceptualize 1 million. Students grapple with the concept of a million. They use this activity to convey the idea of millions by converting war death...
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How High?
Fourth graders play an estimation game to guess how sheets of paper are in a pile and then guess who high a stack of one million would be. They work in small groups to explore ideas for working out how high the stack would be.
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Hang a Million
Students hang 200 sheets of paper, each with 5000 X's, around the classroom. When completed, this gives them a concrete example of 1,000,000 which will be useful in getting a feel for the lengths of time involved in evolution.
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Estimating Large Numbers
Students experience large numbers by estimating the number of grass blades in a field. They work in small groups to determine numbers of blades of grass in a small area of a field and apply that to determining the total number of blades...
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Junk Yard Math
Third graders explore the process of place value and subtraction through regrouping and borrowing exercises. Several activities using manipulatives are utilized in the lesson.
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Just One!
Learners play a trading game using Base 10 blocks that incorporates decimal place value. Then they each receive a paper with a decimal number on it and must arrange themselves in a line from least to greatest.
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Tic-Tac-Place Value
First graders explore how to write, read, and identify three-digit numbers.
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Hula Hoop Hullabaloo
Second graders use hula hoops to represent the zero as they count objects into ones, tens, hundreds and thousands. They complete an activity to after they have practiced counting objects.
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Marking the Minutes
Students mark seconds, minutes, hours, days, etc. on class timetable report to keep track of time spent on Uninterrupted Silent Reading.
Curated OER
China: Dim Sum: K-1 Numeral Recognition Lesson
Students practice counting from one to twenty, identify numerals, write numerals one through twenty and match numerals to object.