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Lesson Plan
Curated OER

Object Graphs

For Teachers K
Students identify geometric shapes, demonstrate construction of an object graph, compare sets of objects, estimate which student has the most geometric shapes in his or her bag, and play computer game Jump Start Kindergarten.
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Lesson Plan
Curated OER

Pumpkin Carving for K-2 Students

For Teachers K - 2nd
Students carve pumpkins, draw pictures and label layers of a seed, and write steps needed to carve pumpkin.
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Lesson Plan
Curated OER

Counting Blood Cells

For Teachers 3rd - 5th
Students observe number sense by participating in an estimation activity. For this blood cells lesson, students identify the importance of blood cells in the human body and discuss how tiny they are. Students utilize paper dots as a...
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Worksheet
Curated OER

Estimating

For Students 2nd - 4th
In this addition worksheet, students estimate the value of the addition problems to the nearest 10. Students complete 8 estimation problems.
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Worksheet
Curated OER

Estimating

For Students 2nd - 4th
In this estimation worksheet, students estimate the three digit numbers to the nearest hundreds. Students complete 10 problems total.
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Worksheet
Curated OER

Estimating

For Students 2nd - 3rd
In this estimating learning exercise, students estimate the four digit numbers given to them to the nearest thousand. Students complete 10 problems total.
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Lesson Plan
Curated OER

How Much Do We Save?

For Teachers K - 5th
Students use coupons to save. In this saving lesson students practice their addition, multiplication and estimating skills with dollars and cents. They investigate grocery coupons and look for ways to save money.
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Worksheet
Curated OER

Rounding and Estimating before calculating with a Calculator

For Students 7th - 9th
For this rounding worksheet, students solve six problem sets concerned with rounding and estimating.  Students first estimate what the answer should be and then carry out the calculations using a calculator.  Solutions are provided.
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Worksheet
Curated OER

Guessing Jar

For Students 1st
In this guessing jar worksheet, 1st graders write down their guess for how many marbles are in the jar, then count and record the answer, and complete 3 sentences about the numbers.
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Worksheet
Curated OER

Estimating Butterflies

For Students 1st - 3rd
In this estimation worksheet, students estimate how many butterflies are in the picture and have 25 or 55 to choose from. Students estimate and eventually count 25 butterflies.
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Worksheet
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Estimating and Rounding Numbers

For Students 3rd
In this estimating and rounding numbers worksheet, 3rd graders solve 6 math problems using estimating and rounding skills.
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Worksheet
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Rounding and Estimating

For Students 6th - 8th
In this rounding and estimating worksheet, students solve 18 rounding and estimating problems. Students solve problems without a calculator.
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Interactive
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Estimating: Pretest

For Students 5th
In this estimation worksheet, 5th graders read word problems and estimate their outcomes. Students complete 8 multiple choice questions.
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Lesson Plan
Curated OER

Math Review for Grade 4 (4.1)

For Teachers 4th
In this math review for grade 4 (4.1) worksheet, 4th graders answer 25 multiple choice problems in standardized test format about all areas of 4th grade math.
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Lesson Plan
Curated OER

Initial Fraction Ideas Lesson 19: Overview

For Teachers 4th - 5th
Young scholars read different scenarios and discuss how to add fractions. in this addition of fractions lesson plan, students learn how to add unlike fractions and practice 4 problems.
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Worksheet
Curated OER

Quick Quiz: Estimating and Rounding

For Students 5th
For this rounding and estimating worksheet, 5th graders solve 8 addition, subtraction, and rounding problems. Problems ask students to solve, round, estimate, or write the words in number form after reading the word form. 
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Worksheet
Curated OER

Estimating Decimals

For Students 6th - 7th
In this estimation worksheet, students learn to estimate with decimal numbers by using rounding or compatible numbers. There are 10 problems.
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Worksheet
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Estimating Products: Which is Closer?

For Students 4th
In this estimating products worksheet, 4th graders are given a target number in ten problems, they first estimate which of two equations will yield a product closer to but less than the other, then they multiply both equations.
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Organizer
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Estimating Products with Decimal Movement

For Students 5th
In this estimating products with decimal movement activity, 5th graders multiply to complete the table, then answer three questions about the patterns in the movement of the decimal point.
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Lesson Plan
Curated OER

Sizing Up Spout

For Teachers 3rd - 5th
Students estimate heights and lengths of objects. In this measurement lesson, students estimate the length and height of various objects using non-traditional tools of measurement. This lesson also includes a video clip on measurement.
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Lesson Plan
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Adjusting the Quotient

For Teachers 5th - 6th
Students solve division problems. For this division lesson, students review estimating and how to figure out if their estimate is too large or too small. Students solve division problems and use their estimating skills to adjust the...
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Worksheet
Curated OER

What Can You Do In One Minute?

For Students 1st - 2nd
In this timing worksheet, students discover what tasks can be done in one minute. Students solve 5 problems in which they time themselves for one minute doing different tasks such as: building a cube tower, keeping a ball up in the air,...
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Lesson Plan
Curated OER

Estimating and Counting Money

For Teachers 2nd - 4th
Students explore the concepts of estimating and rounding. In this estimating and rounding activity, students play a game of tic-tac-toe. Students pick items and must estimate their cost by rounding. Students estimate the costs of pretend...
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Lesson Plan
Curated OER

Junk Food Math

For Teachers 3rd - 4th
Students use Skittles candies as they explore estimation and percentages. In this math lesson plan, students sort, count, and chart Skittles candies to learn about estimation and study percentages.