Students investigate geometric relationship using conjecture about linear pairs and vertical angles. In this geometry lesson, students apply their theorems and previous geometry knowledge to solve for and find angles of linear...

Second graders measure red worms. In this instructional activity, 2nd graders observe and collect data on red worms. Students measure the red worms and create a graph with the data they collect.

Can survival rates on the Titanic be explained by the "women and children first" policy or did rescue procedures favor the wealthy? Use actual historical data to explore conditional probability and independent events with your class....

Work with the class to investigate the concept of dividing decimals. They will use a variety of problem-solving skills in order to practice the operation of division. The teacher can use the dialogue to guide learners through the various...

First off, this worksheet is adorable! It has seven unit cube buildings drawn on it, complete with trees, paths, and fountains. Upper graders find the volume of each of seven buildings in cubic units. The drawings are attractive, and the...

Fourth and fifth graders make predictions using data. In this analyzing data lesson, pupils use experimental data, frequency tables, and line plots to look for patterns in the data in order to determine chance. You will need to make a...

Calculate the answers to problems that are multiples of ten to help your class discern patterns in the zeros and learn to sequence. Each person receives a 10,000 chart, but s/he must discover that on their own through estimation and...

Which number is missing? Beginning counters examine twenty-six number sequences, one for each letter of the alphabet. Each sequence has four numbers, ranging from one to 20. There is one number missing from the sequence, and learners...

Plants never grow at the same rate, and that is the antithesis for this word problem involving multiplication of fractions. On the worksheet, Raul notices that Pablo's seedlings are 1 1/2 times as tall, and Celina's seedlings are 3/4 as...

Working with kindergartners one-on-one, you will identify their ability to count by 1s and 10s and conclude what levels they have mastered, as well as where they need skills practice and instruction. The commentary provided will aid you...

Common Core is all about getting your learners to open their minds and think about the why and how. This problem has them thinking about unknown numbers and their relationship with one another when we round and...

Apply the power of mathematics to the power expressions. The lesson gives examples of expressions that utilize each of the exponent rules to simplify. Once seeing the exponent rules individually, scholars combine them to simplify an...

Teach solving for unknowns through a problem-solving approach. The grouping of five lessons progresses from finding an unknown through simple reasoning to solving simultaneous equations involving three and four variables. Each lesson...

Students determine the percentage increase in output of solid waste in the U.S. They determine the length of time it takes for throw away items to decompose.

Are you working on graphing ordered pairs in your class? In this activity, learners, after looking over and studying how to graph ordered pairs, plot points on a coordinate grid and connect the dots. Class members also identify what they...

Students use Cuisenaire rods to explore common denominators. In this fractions instructional activity, students build Cuisenaire representations of fractions, then find their equivalent counterparts to find the common denominator.

Explore fractions with upper graders. They will discover how to show fractions by shading the correct amount shown in a picture (giving them the idea behind part to whole). They also play multiple fraction games using dice, matching...

Get mathematicians engaged with number terminology using this puzzle activity! Learners determine the selected number from a hundred board by eliminating numbers using clues. As a group, each learner has a specific role, outlined in the...

Ready to study inequalities with your class? Use this learning exercise to solve multi-step inequalities and graph the solutions. The document would be great to use as a study guide as you present the material, or could easily be...

Introduce the concept of exponential functions with an activity that extends the definition of exponents to include rational values. Start with a doubling function at integer values of time, then expand table to include frational time...

Proofs are usually an intimidating assignment. An engaging lesson focused on geometric proofs may reduce the anxiety! Pupils choose between several triangle proofs to complete and work on completing them. The...

Examine the relationship between time and geometry. A series of five lessons provides a grade-appropriate problem from elementary through high school. Each problem asks learners to compare the movement of the hands on a clock to an angle...

Examine the consequences of varying speed.  An engaging set of five problem sets challenges young mathematicians by targeting a different grade level from K-12. In the initial lesson, scholars make conclusions about the time it...

Cut-and-paste a great activity into your lesson plans. Scholars analyze real-world problems involving proportions. To change things up a bit they cut-and-paste quantities to create a proportion on their way to solving the problems.