Student complete a number of activities using computer based resources and primary sources to research the fur trade. They answer questions using the computer research.

Students estimate the number of items in a group. In this estimation instructional activity, students are presented with random objects to clean up. Students estimate how many items are present and then compare the actual number of items...

Ninth graders select and build one of five different paper airplane designs and test them for distance and for time aloft. Part of this activity is designed to explore NASA developed software, FoilSim, with respect to the lift of an...

Students become familiar with map coordinates. They establish the frequency of earthquake occurrences and study the location and magnitude of earthquakes. To establish the location of plate boundaries.

Pupils study uncollectible accounts expense. They analyze an adjustment for uncollectible accounts expense, enter an adjustment for uncollectible accounts expense on a Work Sheet, and post the entry to write off an uncollectible A/R.

In this percent worksheet, students review and study what percent means, what percent strips are, making sense of percents and estimating percents. Students complete ten word problems.

Fifth graders determine that carbon dioxide is a gas given off during respiration and that oxygent is the gas that is absorbed during respiration. They determine the air capacity of the lungs.

In this decimal worksheet, students solve a total of 31 decimal problems including: writing decimals, determining the smaller of 3 decimals, determining place value, rounding, filling in missing numbers and word problems.

Students analyze the monetary cost associated with smoking. Students use statistics to determine life expectancy and cost associated with smoking.

Sixth graders set up an ecosystem, investigate conservation techniques, develop an action plan for conservation, and various other activities to explore the ecosystem.

Students brainstorm a list of unacceptable things to do in a formal American business meeting. Using a list given to them by their teacher, they determine if the behaviors would be considered rude. They use their various cultures to...

Students construct simple altitude tracking devices for determining the altitude a rocket reaches in its flight. They estimate the altitude a rocket achieves during flight.

Seventh graders calculate the out-of-pocket money needed to purchase a discounted item taxed at a certain percentage of sales tax.

For this whole numbers worksheet, students fill in different charts asking about the place value of various whole numbers. Students complete 8 problems.

Students analyze the monetary cost associated with smoking cigarettes. They calculate the life expectancy associated with how many cigarettes are smoked a day. They complete story problems as well.

As part of a larger site called "Getting started in Chemistry," this site examines significant figures and claims to teach the user "how to avoid telling lies with numbers."

This website explains and defines basic subtraction. There are practice problems at the very end of this lesson.

This task builds off of the skill of rounding to the nearest ten and hundred in third grade. Aligns with CCSS.Math.Content.3.NBT.A.1 Use place value understanding to round whole numbers to the nearest 10 or 100.

This site from the University of California provides a lengthy and intelligent discussion of sig figs, absolute and relative precision, accuracy, precision in calculations, rounding off, and the whole shooting match of how we report what...

If you are looking for a website that explains and defines the basics of mental multiplication with helpful hints then you have arrived at an excellent resource. There are even practice problems at the very end of the lesson.

[Free Registration/Login may be required to access all resource tools.] Estimate products and quotients of fractions and mixed numbers.

BBCi presents a test prep review ("revision") section on significant digits and on approximating an answer by rounding in order to work with an easy number. Click on "Test Bite," on the last page to get an interactive quiz.

You may print off addition, subtraction, multiplication, division, averages, fraction, and other miscellaneous worksheets that are related to mathematics. On the left hand side of this page you will also find links to other subjects,...