Build a connection between algebraic sequences and spreadsheets. Learners examine a specific folding pattern and convert the pattern into a spreadsheet. The goal of the spreadsheet is to produce a sequence of a specific pattern modeled...

We hear a lot about the importance of the rule of law, but most people do not really know what those words mean. The lesson is a webpage that defines the rule of law, explains why it is important in a democratic society and provides...

Young history sleuths examine an inventory of the belongings of a Virginia colonist and use deductive reasoning to determine what the document reveals about colonial life. They then use a Venn diagram to compare the inventory with a...

Malala Yousafzai has become the face of social activism. After watching He Named Me Malala and short student-made films about what young people can do to become instruments of change, class members reflect on what it means to be an...

Go study the universe. Pupils learn seven aspects about astronomy and astronomers. They begin to learn about constellations; distance and motion between objects; gravity; the electromagnetic spectrum; dark matter and energy; and teams of...

The universe is full of a mystic matter people cannot see. Pupils respond to 10 questions about the stuff in the universe. Most of the questions involve the big bang theory and dark matter. Learners find out how astronomers have found...

Scholars take a journey through space with 16 eye-catching images. Along the way, learners read captions starting with the moon, then move onto asteroids, Mars, and Jupiter.

The mini Reading Adventure Pack takes a close look at the Olympics. After reading a fiction and nonfiction story, scholars research facts about the host country or a country of their choice participating in the games. The research...

Simulate the Situation Room and analyze the US's relationship with North Korea. The plan starts off with a quick review and an examination of a online timeline that updates as the situation continues. Next, the class reads an article and...

You've investigated relationships between chords, radii, and diameters—now it's time for arcs. Learners investigate relationships between arcs and chords. Learners then prove that congruent chords have congruent arcs, congruent arcs have...

You know the Inscribed Angle Theorem and you know about tangent lines; now let's consider them together! Learners first explore angle measures when one of the rays of the angle is a tangent to a circle. They then apply their...

Young mathematicians identify different cases of intersecting secant lines. They then investigate the case where secant lines meet inside a circle.

Math class is full of drama—there are so many problems to work out! Pupils work out factoring problems. They use quadratic methods of factoring higher degree polynomials, in addition to factoring the sum and difference of two...

Challenge classes to think deeply and apply their understanding of polynomials. The assessment prompts learners to use polynomial functions to model different situations and use them to make predictions and conclusions.

Five out of four people have trouble with fractions! After comparing simplifying fractions to simplifying rational expressions, pupils use the same principles to multiply and divide rational expressions. 

It takes a lot of planning to achieve a random result! Learners compare results of random assignment, and conclude that random assignment allows results to be attributed to chance. They also realize the set of random means...

Help your classes find the significance in this lesson! Learners analyze the probability of Diff values. They then determine if the difference is significant based on their probability of occurrence. 

Pupils analyze group data to identify significant differences. They use simulation to create their own random assignment data for comparison. 

Translating complex numbers is as simple as adding 1, 2, 3. In the ninth lesson in a 32-part series, the class takes a deeper look at the geometric effect of adding and subtracting complex numbers. The resource leads pupils into what it...

How can you prove it? Guide classes through an exploration of two possible triangle congruence criteria: AAS and HL. Learners connect this criteria to those previous learned and also explore criteria that does not work. The instructional...

How do you know if a pair of triangles are congruent? Use the lesson to help class members become comfortable identifying the congruence criteria. They begin with an exploration of ASA and SSS criteria through transformations and...

Discover how mathematics can be useful in comparing strategies. Scholars develop probability distributions for situations and calculate expected value. They use their results to identify the best strategy for the situation.

Extend percent understandings to include percents less than one and greater than 100. A great lesson has pupils build upon their knowledge of percents from sixth grade. They convert between fractions, decimals, and percents that are less...

It's time to put pen to paper. Scholars complete the first part of the mid-unit 3 assessment, writing a short constructed response about international aid following a natural disaster. Next, pupils use informational texts and note...