Curated OER
Calculating Sales Tax
Observe and demonstrate how to calculate state sales taxes. Learners create a sales tax chart by calculating the sales tax amount and tax inclusive retail price for school store items, then calculate the subtotals, sales tax amounts, and...
Curated OER
Proof of the Pythagorean Theorem Using Transformations
Middle and high schoolers construct a triangle using Cabri Jr. They construct squares on each of the legs and hypotenuse of the triangle. Pupils show that the area of the squares on the leg equal the area of the square on the hypotenuse.
Federal Reserve Bank
So How Much Are You Really Paying for that Loan?
Loans are rarely provided without a cost. Pupils evaluate the high cost of using a payday loan or payday advance through discussion and worksheets, and finally work in groups to develop short public service announcements...
Curated OER
Intercepting Villans Using the Correct Rate
A Cyberchase video introduces the distance = rate x time equation. Participants then calculate answers to proposed problems and graph a series of results that is then incorporated into a game to help cement the concept. A thorough and...
Curated OER
Using Conversion
Instruct youngsters how to convert from one unit of measurement to another. This basic skill is useful in science courses as well as in math courses. Learning check slides are included to help viewers practice solving these types of...
Curated OER
Rounding and Estimating before calculating with a Calculator
In this rounding instructional 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. ...
Curated OER
Fun with Math using Magnetic Force
Sixth graders explore and discuss the effectiveness of magnets in different situations. In this math lesson, 6th graders discuss rate and graphs after exploring with magnets using different restrictions on the magnets. They analyze their...
Curated OER
Weaving a Story
It's time to investigate patterns! First and second graders construct a paper weaving using a hundreds chart, then use the Ti-10 calculator to make patterns such as adding 3 each time. Learners remove multiples of three from the hundreds...
Virginia Department of Education
Numbers in a Name
What's in a name? Pupils create a data set from the number of letters in the names of classmates. Each group then takes the data and creates a visual representation, such as a histogram, circle graph, stem-and-leaf plot, etc.
Curated OER
Math: Navigating the World Around Me
Young mathematicians research and discuss real world math word problems and ways in which they apply math concepts in their everyday lives. They create a storyboard of a math word problem from which they create a slide for a multi-media...
EngageNY
Chance Experiments with Outcomes That Are Not Equally Likely
The fifth portion of the 25-part series introduces probabilities calculated from outcomes that are not equally likely. Class members use tables to calculate probabilities of events, add outcome's probabilities, and find...
Yummy Math
Parametric Equations and a Heart
Trigonometry, art, and Valentine's Day come together in a creative activity about parametric equations. Learners calculate several equations before graphing them either by hand, on a graphic calculator, or Excel spreadsheet to curve...
Noyce Foundation
Sewing
Sew up your unit on operations with decimals using this assessment task. Young mathematicians use given rules to determine the amount of fabric they need to sew a pair of pants. They must also fill in a partially complete bill for...
EngageNY
An Area Formula for Triangles
Use a triangle area formula that works when the height is unknown. The eighth installment in a 16-part series on trigonometry revisits the trigonometric triangle area formula that previously was shown to work with the acute triangles....
Math Worksheets Land
Zombie's Mean, Median, Mode, and Range
Given four sets of data, zombie-loving mathematicians find the mode, range, mean, and median for each set. The sheet is more challenging if calculators are not used; but the data set with large numbers may require a calculator.
Curated OER
TI Calculator
In this algebra worksheet, 11th graders troubleshoot the TI-83/84 graphing calculator. They review the proper process to use when entering equations and fractions into the calculator. There are 4 example problems worked out.
Curated OER
Calculating Simple Interest
Interest can be both a best friend and an enemy...show your learners how it can manifest through this set of 10 word problems. For each, they calculate time, principle, interest, or rate and choose an answer from multiple choice...
EngageNY
Truncated Cones
Learners examine objects and find their volumes using geometric formulas in the 21st installment of this 25-part module. Objects take the shape of truncated cones and pyramids, and individuals apply concepts of similar triangles to find...
Beyond Benign
Can You Hear Me Now? Cell Phone Accounts
How sustainable are cell phones? Throughout the unit, learners explore the issues around cell phones concerning sustainability. Class members take a graphical look at the number of cell phones across the world using a box-and-whisker...
Curated OER
That's The Way the Cookie Crumbles
Third graders work with money values and making purchases. In this money lesson, 3rd graders listen to Donna Guthrie's book, Real World Math: Money and Other Numbers In Your Life. They make money cookies either with a recipe or with...
Illustrative Mathematics
Solar Eclipse
Learners take on the role of astronomers, calculating conditions necessary for a total solar eclipse. Concepts of similar triangles and properties of circles come together as pupils create ratios and use real measurements in determining...
Yummy Math
US Holiday Candy Sales
Candy is a big business! Calculate the amount of money consumers spent on major holidays—Easter, Halloween, Christmas, Hanukkah, and Valentine's Day—based on the total amount of candy sales from 2011 and the percentage of each holiday's...
Teach Engineering
Scale Model Project
Try your hand at scale models. Scholars create a scale model of an object using a scale factor of their choice. As part of the project, they give presentations on their processes and calculations. This is the last installment of the...
National Council of Teachers of Mathematics
Scale Factor
Does doubling mean everything doubles? Learners adjust the scale factor between two rectangles. Using the calculated measurements, pupils investigate the ratios between the lengths, perimeters, and areas of the rectangles.