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Lesson Planet

#### Mean, Median, Mode, and Range

What a find! Here is a lesson plan, designed to meet sixth grade math Common Core standards, that focuses on the calculation of different measures of center for the scores from a penalty shoot-out competition. An independent...

Lesson Planet

#### Diapers

Most of your students probably think a car or college is the first big expense their parents could help them with, but as it turns out these kids have been costing their parents for their whole lives. Have they ever considered how much...

Lesson Planet

#### Paperclip Statistics

Begin with an attention-grabbing activity: have individuals link as many paper clips together as they can in a two-minute time span. Collect the results into a data table, which they will then display in a graph or plot. They calculate...

Lesson Planet

#### Linear and Exponential Functions

This comprehensive unit on linear and exponential functions provides numerous clearly-written worksheets. Topics include graphing linear equations, solving systems of equations algebraically and by graphing, identifying the domain and...

Lesson Planet

#### How on Earth?

The equator and longitudinal lines make interesting circles to study in terms of arc length. Using Google Earth or a globe, pupils research specific questions about size and distance. This a great activity to bring some real-world...

Lesson Planet

#### Mt. Whitney to Death Valley

This is an intriguing problem that brings together real-world data, technology, and mathematical problem solving. If visibility wasn't an issue, could you see from the highest point in the lower 48 states, Mt. Whitney, to the lowest...

Lesson Planet

#### Strict Parents

Are your parents or guardians strict? That's an interesting question many of your pupils are probably interested in discussing. How do you design a study directed at your high schooler to gain insight into that question? How do you...

Lesson Planet

#### Analyzing Congruence Proofs

Looking at numerous examples of triangles, each with different properties, geometers develop their understanding of congruency. They use the notation of a counter-example to disprove certain conjectures and prove geometric theorems and...

Lesson Planet

#### Interpreting Algebraic Expressions

Interpreting algebraic expressions is a fundamental skill in beginning algebra. This lesson approaches the task in numerous ways. First, learners assess their understanding with a short worksheet on converting between words and...

Lesson Planet

#### Discovering the Formula for the Area of a Triangle

Most high schoolers are very familiar with the area of the triangle being equal to 1/2 base times the height. Here, they will develop and test their formula for the area of a triangle when given two adjacent sides and the included angle....

Lesson Planet

#### Verifying Triangles are Congruent

Here the focus is on triangle congruence. Through an activity that requires investigation, questioning, and working together, geometers learn to identify corresponding parts of triangles to determine if the triangles are congruent....

Lesson Planet

#### Applying Laws of Sines and Cosines

How does the Law of Sines differ from the Law of Cosines? Learners, working cooperatively in small groups, try to gain insight into this question. The activities center around using both laws in different scenarios including real-world...

Lesson Planet

#### Two-Variable Relationships in Real-World Problems

When tending to CCSS.Math.Content.6.EE.9, this complete resource fits the bill. Learners work in groups or pairs to assign two variables to several real-world problems. They write equations, complete tables of solutions, and then...

Lesson Planet

#### Defining Transformations that Create Congruent Figures

Rotations, reflections, and translations are explored as geometers rotate through three different stations and develop their own definitions for these terms. Afterward, they work in small groups to classify different figures based on...

Lesson Planet

#### Verifying Dilation

Working in pairs, geometry students will construct a dilation and consider the properties associated with the similar figures that are created to verify the properties of dilation. This activity can be done using dot or graph paper and...

Lesson Planet

#### Congruent Figures

Here is a activity that starts out with learners creating congruent figures by drawing the exact same polygon as their partner. From here, they have a discussion about why what they drew is an exact copy, followed by other activities...