Lesson Plan
Illustrative Mathematics

How Many Leaves on a Tree?

For Teachers 9th - 12th Standards
This is great go-to activity for those spring or fall days when the weather beckons your geometry class outside. Learners start with a small tree, devising strategies to accurately estimate the leaf count. They must then tackle the...
Lesson Plan
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Delaware Math Cadre Elementary Committee

Operations and Algebraic Thinking

For Teachers 4th Standards
How to use the relationship between multiplication and division to solve math word problems is the focus of the lesson presented here. In it, fourth graders work in groups to solve problems posed by the teacher. Then, each group is given...
Lesson Plan
Curated OER

Estimating Solutions

For Teachers 5th
Finding approximate solutions to word problems allows users to assess the reasonableness of their answers. In a well-paced lesson, the class rounds numbers to estimate the solutions. They explain their thinking and determine if the...
Worksheet
Curated OER

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.
Lesson Plan
Curated OER

Estimating Solutions to Word Problems

For Teachers 4th
Learners use estimation to determine the answers to word problems by rounding whole numbers. In this estimation lesson plan, pupils compare and contrast solutions using the best answer.
Worksheet
Curated OER

Estimating Whole Numbers

For Students 4th - 6th
Learners solve problems by rounding two to five-digit numbers to the nearest greatest place number. They complete 12 problems.
Interactive
Curated OER

Estimating and Rounding

For Students 6th - 7th
In this estimation and rounding worksheet, learners solve ten multiplication problems by using estimation and rounding skills. This is an interactive worksheet.
Worksheet
Curated OER

Pence and Estimation

For Students 2nd - 4th
For this pence and estimation on line worksheet, students change the price of five toys to pence, estimate the price of four toys by rounding the prices to the nearest 10p and utilize estimation in eight number problems. Students check...
Worksheet
Curated OER

Rounding and Estimating before calculating with a Calculator

For Students 7th - 9th
In this rounding activity, 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.
Worksheet
Curated OER

Estimating and Subtraction

For Students 5th - 6th
In this estimating and subtraction worksheet, students answer 11 subtraction questions in which they round to estimate the answer and then solve. The last question is a subtraction question that does not involve rounding. They can click...
Worksheet
Curated OER

Estimating Products

For Students 4th - 5th Standards
Multiplication on the fly becomes easy with the magic of estimating! Scholars round numbers up to four digits to complete multiplication problems without a calculator. They write in the new factors and the approximate product for the...
Worksheet
Curated OER

Estimating Differences of Money

For Students 5th Standards
When it comes to money math, show scholars that estimation is their best friend. They round money values to the closest dollar, 10 dollar, and 100 dollar increments, solving 19 addition and subtraction problems with approximate answers....
Worksheet
Curated OER

Estimating Fractions and Sums

For Students 4th - 5th
What is a quick comparison, and how can it help you estimate sums and differences? For this estimation worksheet, learners estimate fractions in addition problems. They complete four problems where they estimate the sums after reviewing...
Lesson Plan
Curated OER

Estimating Measurement

For Teachers 1st
First graders estimate length and height of items. They read the story of Jack and the Beanstalk and discuss estimation of size. Students predict the length and height of figures. They use lines and numbers on the centimeter rod and tape...
Worksheet
Curated OER

Estimating Sums of Money

For Students 4th - 6th
By rounding, scholars find that adding money amounts becomes a breeze! They round two and three-digit numbers (with decimals) in these addition problems to get approximate sums. For each, mathematicians write the new addition equation...
Lesson Plan
Mathematics Assessment Project

Estimating Length Using Scientific Notation

For Teachers 8th Standards
Would you rather have a million dollars or 1 x 10^6 dollars? To find the answer to this question, class members first complete an assessment task converting numbers between decimal notation and scientific notation. They then take...
Worksheet
Curated OER

Estimating Quotients

For Students 4th Standards
Put down those calculators! Show scholars they can solve division problems mentally using rounding strategies. They divide four-digit dividends by one-digit divisors, competing 26 problems in all. The first eight have some scaffolding...
Lesson Plan
Curated OER

Measurement and Conversion of Units in a Recipe

For Teachers 4th - 5th
In a cross-curricular measurement and literacy lesson, your class will identify and compare cooking measurement instruments. They read a recipe and sequence a set of similar instructions in which the steps have been mixed up....
Lesson Plan
EngageNY

Interpreting Correlation

For Teachers 9th - 10th Standards
Is 0.56 stronger than -0.78? Interpret the correlation coefficient as the strength and direction of a linear relationship between two variables. An algebra lesson introduces the correlation coefficient by estimating and then...
Worksheet
Super Teacher Worksheets

Estimating Weight

For Students 2nd - 4th
How much does a seagull weigh? Kids estimate weight by choosing the closest option out of three, using ounces, pounds, and tons. 
Interactive
CK-12 Foundation

Fraction Rounding to the Nearest Half: Beaker Math

For Students 6th Standards
Rounding fractions is the focus of a six-question interactive designed to boost concept proficiency. A measured beaker's water level increases and decreases as mathematicians move the tool to represent specific fractions. Questions...
Assessment
Fluence Learning

Solve Problems Using Measurement Concepts

For Students 2nd Standards
Young mathematicians demonstrate what they know about measurement with a four-task assessment that focuses on estimation, length, and inches.
PPT
Curated OER

Measures Combined

For Teachers 4th - 5th
Use this resource to teach perimeter of regular plane shapes, measurement, rounding, and systematic problem solving skills. There are 78 complete slides and two game suggestions intended to facilitate content understanding.
Lesson Plan
Curated OER

Estimating School Store Purchases

For Teachers 3rd - 5th
Students examine uses for estimating, and round purchase prices to estimate total purchases in a simulated school store setting. They discuss what it means for an item to be on sale, and observe the teacher work through the process of...