Is the amount of information getting overwhelming for your geometry classes? Use this strategy as a way to organize information. The resource provides a handout of information studied in relation to triangle congruence. It includes a...

Can you prove it? Making assumptions in geometry is commonplace. This resource requires mathematicians to prove the parallel line postulate through constructions. Learners construct parallel lines with a 180-degree rotation and then...

Does it matter how many points to dilate? The resource presents problems of dilating curved figures. Class members find out that not only do they need to dilate several points but the points need to be distributed about the entire curve...

What does it mean to solve an equation? The resource revisits the concept of making a linear equation true. Classmates use algebraic methods to transform sides of equations to expressions with fewer terms. They use substitution to...

Two-variable equations can express a constant rate situation. The lesson presents several constant rate problems. Pupils use the stated constant rate to create a linear equation, find values in a table, and graph the points. The resource...

Find the faster rate. The resource tasks the class to compare proportional relationships represented in different ways. Pupils find the slope of the proportional relationships to determine the constant rates. They then analyze the...

Pupils build confidence working with percents as they work several types of percent problems to increase their fluency. The resource contains two sets of problems specifically designed to build efficiency in finding solutions of basic...

Don't part with a resource on partitive division. Continuing along the lines of the previous lesson, pupils create stories for division problems, this time for partitive division problems. Trying out different situations and units allows...

Order up a resource on absolute value and order. The 12th installment of a 21-part module investigates the relationship between absolute value and the order of numbers on a number line. Scholars determine how the actual values and the...

Factor in an informative resource when teaching about factoring. The 11th lesson in a 36-part module shows pupils how to factor algebraic expressions by applying the distributive property. Some of the problems involve expressions with...

Substitute this resource for what you used to use. Learners identify patterns in data tables and write addition and subtraction expressions to represent relationships. Substitution allows them to solve problems in context in the 20th...

Powered up! Here's a great resource on exponents. Scholars build on their previous understanding of exponents to include all positive real number bases. Distinguishing between an and a^n is a major goal in the fifth lesson of a 36-part...

Pencil in the resource on writing verbal phrases into your lesson plans. The 15th installment of a 36-part module has scholars write verbal phases for algebraic expressions. They complete a set of problems to solidify this skill.

Don't table the resource on writing expressions for relationships in tables. Scholars investigate relationships between variables and write algebraic expressions involving multiplication and division. These expressions help solve...

Before presenting the material to your classes, review different constructions of the conditional tense. This teacher's guide provides several examples and role-play opportunities with your class. Dialogue to build familiarity with the...

There's an app for that! Pupils learn to build an app that will store data on an Android. The instructional activity introduces class members to the tiny database, TinyDB, for Android devices. A video tutorial provides an...

Some fish contain proteins that act like antifreeze in order for them to live in the frigid waters of Antarctica! High schoolers determine how much antifreeze a fish needs to lower its body temp to -2.5 degrees. Teachers act as a...

Need a lesson to fuel young minds? A variety of hands-on activities is sure to get your class fired up! Beginning with an introductory slideshow and culminating with group presentations, the week-long unit has something for everyone....

While the European Union has been a part of economic landscape for decades, it grew out of a period of economic integration after World War II. Using a round table method, class members analyze and discuss the events leading up to the...

Believe it or not, everyone plays a role in Internet advertising. Scholars explore the topic with a podcast about Internet advertising and personal identity. Next, partners plan and produce their own public service announcements to...

How reliable is a painting of the first Thanksgiving if it was created 300 years after the fact? Learners assess the validity of a primary source image to determine what it can actually reveal about this event. 

Young scientists get the chance to dissect pellets "owl" by themselves to determine the owls environment and nourishment. This is the third part of a three-part series. 

If you're teaching point of view, this is the lesson for you! First, decipher the writer's point of view from a primary resource, then compare and contrast the primary source with a secondary source to explore the Paul Revere's...

Introduce gas laws using the popular topic of SCUBA diving. This activity makes a connection between the gas laws and the effect of pressure and temperature changes during diving. Young engineers complete introductory experiments to...