Estimating is an essential skill used in everyday life. This presentation explains how to apply prior knowledge about rounding numbers to estimating sums and differences. Example problems and assessment include large numbers, making this...

Mathematicians prove their proficiency for rounding to the nearest 100 with forty-four flash cards and a activity, each offering an assortment of whole numbers.

We know that sample data varies — it's time to quantify that variability! After calculating a sample mean, pupils calculate the margin of error. They repeat the process with a greater number of sample means and compare the results.

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...

How do you balance a set of data? Using a ruler and some coins, learners determine whether the balance point is always in the middle. Through class and small group discussions, they find that the mean is the the best estimate of the...

Break out those math manipulatives, it's time to teach about area! Capturing the engagement of young mathematicians, this three-lesson series supports children with learning how to measure the area of squares, rectangles, and other...

Estimating the value of numbers is much harder than it sounds! Scholars compare and order the value of numbers presented in different forms including fractions, decimals, roots, integers, and pi. This builds on the previous lessons in...

In this simple rounding worksheet, students solve 12 different problems that include rounding to the nearest ten in each. First, they write the ten nearest to the number on a number line. Then, students identify the number in each box...

In this rounding off worksheet, 6th graders practice rounding off 30 specific numbers to the nearest 1,000, 10,000 and/or 100,000.

A good estimator usually has a good number sense. Make good estimators out of your class with this fun estimation activity. They review words that express estimation, estimate the number of three different sets, and then estimate the...

Always be prepared for a substitute teacher with a daily plan equipped with an assortment of activities that cover third grade math, reading, word work, and writing. 

Reinforce estimation and the four operations—addition, subtraction, multiplication, and division—with eight page, 15 problem independent practice exercise.

Common denominators, factors, and rounding are a few of the terms in a set of flash cards designed to reinforce math vocabulary. Forty-two cards offer a bold-faced vocabulary word or a corresponding definition alongside an...

Teach your class a thing or two about making educated mathematical guesses. Learners read a passage that explains estimation and approximate and exact answers. They then respond to five questions about and related to the text.

Assess scholars' knowledge with a 22-page assessment that covers place value, patterns, probability, estimation, measurement, geometric figures; and their ability to add, subtract, multiply and divide proficiently. 

A one-sided limit need not be half as interesting as a two-sided limit. Pupils learn the notation for one-sided limits and how to determine the value of a one-sided limit from graphs by watching a short video. They then see how to create...

In this rounding whole numbers and estimating sums and differences worksheet, students problem solve and calculate the answers to forty two mathematical equations.

In this numbers worksheet, 3rd graders practice rounding off 100 numbers between 0 and 500 to the nearest tens place. Students write their answers on the lines next to each number.

Fourth graders explore rounding a price given in dollar and cents to the nearest dollar. In this math lesson, 4th graders discover how to round to the nearest dollar. Additionally, students practice rounding money for objects that they...

Third graders use a hundreds chart and number line to round to the nearest ten.  In this rounding numbers to ten lesson plan, 3rd graders navigate an online activity to round numbers.  Students complete a worksheet and share...

In this rounding numbers worksheet, students round numbers between 100 and 1,000. There are 100 problems on this one-page worksheet. An answer sheet is provided.

In this rounding off worksheet, students calculate the approximate answers for 10 addition, division or subtraction math problems, questions and/or statements.

In this rounding worksheet, students complete the thought process sentences and round numbers to the nearest ten. Students round twenty-four problems.

Students explore the concept of rounding. In this rounding instructional activity, students round fractions and mixed numbers. Students estimate the sums, differences, products, and quotients of rounded fractions and mixed numbers.