How long is your hand span? Young mathematicians measure their hand span from pinky tip to thumb tip using a centimeter ruler. After rounding to the nearest whole centimeter, learners plot their data on a line plot.

Mathematicians go on a virtual shopping trip in an interactive designed to boost the concept of estimation. Scholars read and answer five questions—multiple-choice, true or false, and a discussion—with help from a drag-and-drop shopping...

In this proportion word problem learning exercise, students read real-life problems and solve proportions. This four-page learning exercise contains 18 problems. Answers are provided on the last page.

Explore all things decimal in this thorough series of introduction activities. Including scripting for the teacher and detailed descriptions and examples, the plan begins by reviewing the basics of place value and writing fractions as...

Investigating the large numbers of science is the task in a simple but deep activity. Given a one-sentence problem set-up and some basic assumptions, the class sets off on an open-ended investigation that really gives some...

Deal me in! Elementary and middle school classes will love this selection of math games, all involving a deck of cards. From fractions to exponents to rounding up and down, the games cover such a variety of skills that your classroom...

State the population of the state. Pupils research census data on the total population, the number of children their age, and the number of children of the same age and gender in their states. They write these numbers in standard,...

Young mathematicians dive into the number line to discover decimals and how the numbers infinitely get smaller in between. They click the zoom button a few times and learn that the number line doesn't just stop at integers. Includes...

In this estimating practice worksheet, students sharpen their math skills as they learn how to make likely estimates and try the 2 extra practice activities.

In this estimating worksheet, students estimate the whole numbers that arrows on a number line are pointing to, 0-10. A website reference for additional activities is given.

In this estimating quotients worksheet, students solve 20 different problems that include estimating a variety of quotients in each. They divide each whole number and then estimate the answer in each problem to the nearest whole number.

Second graders explore estimation and rounding concepts using goldfish crackers and a song! They solve problems by estimating and rounding numbers and pick numbers within reason to represent certain objects.

In this rounding worksheet, students examine 9 different numbers, write the 2 numbers each number falls between and then round each number to the nearest thousand. Next, students solve 15 fill in the blank problems where they round...

In this rounding worksheet, students round a set of 40 numbers to the nearest 100. An answer key is included. A website reference is given for additional resources. 

Determine the right mix of cans of cat food. The resource consists of an assessment task to determine the cost to feed two cats for a specific number of days and requires scholars to interpret remainders within a context....

Looking for an estimation activity a bit more involved than the typical "guess the number of jellybeans in the jar" game? Here, learners use a picture to estimate the number of people at a large event, look for potential problems with...

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.

Use the power of mathematics to find the number of red chips in a bag — it's a little like magic! The activity asks learners to collect data to determine the percentage of red chips in a bag. They calculate the margin of error and...

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. 

Take a spin to determine experimental probability. Small groups spin a spinner and keep track of the sums of the spins and calculate the resulting probabilities. Pupils use simulated frequencies to practice finding other probabilities to...

For advanced chemists, this worksheet examines heat change during chemcial reactions. Alkanes are examined first. Learners calculate the energy released or needed during a reaction.

Just when a young mathematician starts to feel comfortable turning word problems into linear equations, shake things up and throw inequalities in the mix. This excellent, instructive presentation takes the steps for solving an...

Second graders solve a math word problem involving the addition of two digit numbers. They discuss the problem as a class, independently explore the problem, and discuss as a class the solution and how they organized their reversed...

For this rounding instructional activity, learners practice rounding numbers to the nearest ten. There are 8 numbers that students round. The answers are included at the bottom half of the page.