Cooperative groups compare pairs of photos of Alaskan glaciers. They match a historical photo to the recent photo of the same glacier. The class discusses what conditions are necessary for glaciers to retreat. This abbreviated activity...

Your class is asked to use inverse operations to solve eleven equations for unknown variables or to rearrange formulas to highlight a quantity of interest. By using the same reasoning as solving one- and two-step equations, algebra...

There are three money word problems in this activity, each one is set in the same context. The first asks what was the total amount grandma spent, the second how many grandchildren grandma has, and the third asks how much grandma spent...

Teaching a child with low or no vision how to read is the same as teaching a sighted child how to read — it all starts with letter recognition. This is a simple way to provide your learners with an opportunity to practice reading and...

What is the difference between saber and conocer? Language learners sometimes have difficulty with these words because of their similar meaning. Clear up confusion with the information and presentation included here. The website and...

Practice with unit rates, proportions, and ratios when Carlos purchases an amount of bananas. Learners must interpret a graph to decide whether points on the same line represent similar proportional relationships. Use with lesson plans...

Help your class understand the difference between fact and opinion by exploring the New York Times homepage and articles. In pairs or small groups, pupils complete a scavenger hunt, answering the provided questions. Next, discuss the...

Take a walk through time, 1852 to 2005, following the mathematical history, development, and solution of the Four-Color Theorem. Learners take on the role of cartographers to study a United States map that is to be...

Whether or not Galileo actually dropped balls from the Leaning Tower of Pisa, this demonstration will solidly demonstrate that objects are accelerated at the same rate, regardless of mass. You will, however, need a vacuum pump and a few...

Your algebra learners analyze the value of an algebraic expression to decide if it will increase, decrease, or stay the same when one variable is changed as the others stay constant. Their collaborative efforts culminate with a written...

Your algebra learners will manipulate an expression's form in order to make obvious the value of it increasing, decreasing, or staying the same, when one variable is changed as the others stay constant. Your future physicists'...

Pupils put together their own stroboscopes so that they can observe how cyclically moving images appear to merge into a singular object. This, and several other activities published by the same source, illuminate the way the brain...

Your archaeologists begin this task with a table of values to estimate the time passed based on the half-life of Carbon 14 remaining in a plant. They then move on to find when a specific amount of Carbon 14 is present in the same plant,...

Zap! Ouch! That hurts! But why? And how come people don't experience or respond to pain in the same way? Take a journey on the sensing pathway, from your nociceptors, along your nerves, up your spinal cord, to neurons and glial, through...

Your learners get solid practice calculating the surface area and volume of rectangular prisms with this worksheet. There are ten versions of the activity for their enjoyment, and yours.

Adding details and figurative language makes any story more fun to read! After reading two versions of the same story, one devoid of figurative language and one embellished, young writers are asked to add alliteration, hyperbole,...

Gain greater insight into poems using a poetry analysis worksheet. Here, scholars follow steps and answer questions to dissect any poem. Topics include the poem's meaning, theme, technique, and structure, as well as personal...

Whether or not your class has heard of homonyms, they'll herd together to complete a language instructional activity! With examples of both homophones and homonyms, the instructional activity prompts learners to come up with additional...

Why do some items feel colder when they are the same temperature? How should you keep your soda cold? What makes the wind blow? These are just some of the things middle schoolers discover when completing a lesson on...

Color the town red. Demonstrate the concept of graph theory with a task that involves determining the least number of colors needed to color a map so that neighboring countries are not represented by the same color. Pupils...

After determining the volume of various drinking glasses , class members evaluate sample responses to the same task to identify errors in reasoning.

Do these items have the same ratio? Through a learning contract, pupils master proportions by practicing proportions via word problems, graphs, and with manipulatives. An exit ticket checks for understanding at the end of the...

Candy is a big business! Calculate the amount of money consumers spent on major holidays—Easter, Halloween, Christmas, Hanukkah, and Valentine's Day—based on the total amount of candy sales from 2011 and the percentage of each holiday's...

What does stretching a balloon have to do with equilibrium? Groups explore preconditioning by stretching a balloon to a point of equilibrium. They then measure the amount of force required to stretch the balloon to the same point several...