A brief explanation of the numbering system of the ancient Egyptians, with great drawings and sample problems. Use this resource to introduce yourself to the symbols ancient Egyptians used in mathematics. There are some activities to...

Lesson plan in which young scholars calculate area, build areas to a given amount, and calculate the perimeter with the use of Legos. Step by step instructions and videos are provided. CCSS.Math.Content.3.MD.C.7.c Use area models to...

This tutorial with video and slideshow components investigate the characteristics of polygons as well as how to calculate the interior and exterior angles of any polygon. It offers two PowerPoint presentations and two videos that feature...

Learn about the annual KoMal competition in mathematics, physics, and information technology, and challenge your ability to solve problems involving advanced algebra, logic, and other related topics through the tests provided at this site.

Would you like to see how your allowance can grow over time? Use this online calculator to figure it out.

This free online graphics calculator is an excellent resource to aid with studies in algebra, calculus, trigonometry, etc.

Understand how we can calculate the radius of a circle of confusion

Using mathematical operations to calculate and create expressions.

For this task, 8th graders investigate how numbers are rounded when using a calculator and what effects this can have. Aligns with 8.NS.A.

The purpose of this task is to provide practice calculating probabilities in the context of a chance experiment with equally likely outcomes and to allow students to develop the addition rule for calculating the probability of the union...

Information and examples of how the base 60 number system of the Babylonians worked in calculating problems similar to those we face today. Has a section comparing Pythagoras's theorem to Babylonian math.

This task could form part of a classroom activity where students are encouraged to find as many different ways as possible to make different fractions such as 1/12 and then share their methods. While measuring cups would be helpful to...

The purpose of this task is to present students with a situation in which they need to divide a whole number by a unit fraction in order to find a solution. Calculating the number of origami stars that Avery and Megan can make...

The purpose of this task is for students to calculate the percent increase and relative cost in a real-world context. This task is part of a set collaboratively developed with Money as You Learn, an initiative of the President's Advisory...

The purpose of this task is to use similar triangles and setting up a proportion in order to calculate a side length. Aligns with G-SRT.B.5.

In preparation for some medical tests, Jared must drink 3 liters of water today, but he has forgotten his water bottle at home and must use paper cone cups at work. Young scholars are asked to calculate how many of these he must drink if...

For this task, students are presented with a table and a graph and are asked to summarize the data and report the findings of a project by the Environmental Protection Agency to contain the effects of an invasive species on a fish...

For this task about banana bread, 6th graders must calculate the volume of a pan to see if it is large enough for the bread batter. Aligns with 6.G.A.2.

In this real-world context, 6th graders are given the ratio of Jim's money to Jesse's and the amounts they have spent so far on a road trip, and they must calculate what each person had at the start of the trip. Aligns with 6.RP.A.3.

Standard 5.OA.2 asks students to "Write simple expressions that record calculations with numbers, and interpret numerical expressions without evaluating them." This task asks students to exercise both of these complementary skills,...

At first glance, this might seem like an impossible problem because the number $7^{2011}$ is much too large to evaluate even with a calculator. It requires a starting point, and, to many, such a starting point might not be obvious....

In addition to providing a task that relates to other disciplines (history, civics, current events, etc.), this task is intended to demonstrate that a graph can summarize a distribution as well as provide useful information about...

The context of this task is that a quarter was put into a bank account in 1901 and students are asked to calculate its value in 2013 at two different interest rates. Those amounts are compared to the appreciation rate of a rare and...

In this task on exponential decay, learners calculate what the amount of Carbon 14 left in a preserved plant will be as time passes and when one microgram will be all that is left. Aligns with F-LE.A.1.c.