The example of two travelers meeting somewhere along the road has been a stereotypical joke about algebra as long as algebra has existed. Here in this detailed presentation, this old trope gets a careful and approachable treatment....

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...

The humble soda can gets the geometric treatment in an activity that links math and science calculations. After a few basic assumptions are made and discussed, surface area calculations combine with density information to develop an...

How do the area and perimeters of circles and squares compare? A clever video illustrates the change in the area of a circle and square while their total perimeter stays the same. The task is for learners to predict the point where the...

Acid-base indicators are an essential part of any chemistry classroom. Individuals explore the color-changing feature of the important indicators in a vibrant hands-on activity. Using serial dilution, learners create solutions ranging...

This is great go-to activity for those spring or fall days when the weather beckons your geometry class outside. Learners start with a small tree, devising strategies to accurately estimate the leaf count. They must then tackle the...

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...

How do you write a number in scientific notation? The handout and video provide an explanation on how to convert from standard form into scientific notation and vice versa. The resource also contains a short discussion about choosing...

Given populations of the five Northwestern states, learners create a circle graph. Using the data and the pie chart, they make comparisons between the populations of the states. Finally, the pupils determine how the chart will change...

It's all just a matter of time. The resource provides four Fermi questions in reference to time. The questions are open-ended and require classmates to make use of estimation and dimensional analysis.

Third graders cut open a pumpkin. In this math lesson plan, 3rd graders complete the worksheet "From Seed to Pumpkin" and then clean out their pumpkins to see how many seeds are in it.

Students estimate how far they can run, jump, or hop in five seconds, then check their prediction.  In this estimation lesson, student predict how far they can run, hop, or jump in five seconds and then try it.

Young scholars carve pumpkins, draw pictures and label layers of a seed, and write steps needed to carve pumpkin.

Learners investigate money. In this consumer math instructional activity, students use coins, identify their value, then group them in various ways to equal a dollar.

Students practice counting and comparing objects.  In this math lesson, students view a Count on It! episode. Students examine the value of what they are counting.  Students estimate number in groups of items.  Students...

Fourth graders investigate measurement of linear and curved surfaces. For this math lesson, 4th graders discuss how to measure curved surfaces and work with a partner to measure various curved surfaces.

Students describe the mark/recapture method used to estimate fish populations. They explain the importance of being able to predict population numbers.

Students explore the concept of counting, measuring, and estimating. In this counting, measuring, and estimating lesson, students use plastic links to count sets of links. Students measure their arms and legs using links.

Students estimate quantity, length, and area. Students practice making comparison estimations of different items and estimate whether or not the amount is greater or less than a certain amount. Students practice making estimations.

Fifth graders explore number sense by participating in role-playing activities. For this estimation lesson, 5th graders discuss reasons for estimating amounts in life and read the book Betcha. Students complete a real life estimation...

Students complete computer activities about estimating if items are more or less than a given amount. In this estimation lesson plan, students also estimate measurements around the classroom.

Students create plots of land in three different ecosystems and use AppleWorks to collect data for research. This lesson includes a downloadable worksheet and can be accomplished in four days.

Students connect different mathematical concepts. They create a circle graph. Students then create a question in which they collect data in order to convert fractions to decimals and decimals to percents.

In this force worksheet, students answer short answer questions about pushing and pulling different objects. Students complete 15 questions.