Hank gets into the dirty details about vascular plant reproduction: they use the basic alternation of generations developed by nonvascular plants 470 million years ago, but they've tricked it out so that it works a whole lot differently compared to the way it did back in the Ordovician swamps where it got its start. Here's how the vascular plants (ferns, gymnosperms and angiosperms) do it.

The purpose of this task is to have students add mixed numbers with like denominators. This task illustrates the different kinds of solution approaches students might take to such a task.

After a brief history of plastics, students look more closely as some examples from the abundant types of plastics found in our day-to-day lives. They are introduced to the mechanical properties of plastics, including their stress-strain relationships, which determine their suitability for different industrial and product applications. These physical properties enable plastics to be fabricated into a wide range of products. Students learn about the different roles that plastics play in our lives, Young's modulus, and the effects that plastics have on our environment. Then students act as industrial engineers, conducting tests to compare different plastics and performing a cost-benefit analysis to determine which are the most cost-effective for a given application, based on their costs and measured physical properties.

Last week, we met the Presocratics: despite having by any reasonable standard invented science in Europe, these thinkers are lumped together today as simply “not Socrates.”
So who was this smarty pants? In this episode Hank talks to us about Socrates and his two important students, Plato and Aristotle.

Ayiti: The Cost of Life is a role-playing video game in which the player assumes the roles of family members living in rural Haiti. At the start of the game, the player chooses a primary goal for his/her family: achieve education, make money, stay healthy, or maintain happiness. During the course of the game, the player encounters unexpected events and must make decisions that contribute to or detract from achieving the chosen goal.

Cooperation and critical thinking are the name of the game as students use baseball facts they find online to create trivia questions for a class Jeopardy game.

What Is It?
This downloadable resource from Playworks includes 30+ games that young children can play at home to stay active and build valuable life skills. Each game comes with guidelines on recommended ages, number of people needed to play, equipment, setup/teaching time, game rules, challenge ideas, game variations, and safety considerations.

"The Play for All resource has been developed to provide educators with access to resources to enhance their capacity to implement inclusive, meaningful, safe, and fun intramural programming that meets the needs of every student in the school community.  "

*Heath & PE Resources*
*Select activities from the left panel to find games
*Select your grade from the lower left panel to find health lessons, wellness resources, videos and more!

In this twist on traditional bingo, the game boards feature students' names, and students answer questions designed to help them learn more about one another when their names are called.

We're going to finish up our discussion of p-values by taking a closer look at how they can get it wrong, and what we can do to minimize those errors. We'll discuss Type 1 (when we think we've detected an effect, but there actually isn't one) and Type 2 (when there was an effect we didn't see) errors and introduce statistical power - which tells us the chance of detecting an effect if there is one.

Students play with and explore prepositions during a whole group reading of Ruth HellerŐs Behind the Mask, and then by composing and publishing prepositional poems based on the bookŐs style.

It is important to keep track of the good things that happen in your life. Use this calendar/chart to do so. It includes:
- What was the experience?
- What moods, feelings, and thoughts accompanied this event?
- How did your body feel, in detail, during this experience? (example: light or relaxed
- Were you aware of your pleasant feelings while the event was happening
- What body sensations, emotions, or thoughts are you experiencing now as you write about the event?

The Plot Diagram is an organizational tool focusing on a pyramid or triangular shape, which is used to map the events in a story. This mapping of plot structure allows readers and writers to visualize the key features of stories.

Students learn that the plot structure described by Freytag's Pyramid is actually quite familiar as they diagram the plots of a familiar story, a television show, and a narrative poem.

In this unit, students learn the very basics of navigation, including the different kinds of navigation and their purposes. The concepts of relative and absolute location, latitude, longitude and cardinal directions are explored, as well as the use and principles of maps and a compass. Students discover the history of navigation and learn the importance of math and how it ties into navigational techniques. Understanding how trilateration can determine one's location leads to a lesson on the global positioning system and how to use a GPS receiver. The unit concludes with an overview of orbits and spacecraft trajectories from Earth to other planets.

Today we’re going to finish up our unit on data visualization by taking a closer look at how dot plots, box plots, and stem and leaf plots represent data. We’ll also talk about the rules we can use to identify outliers and apply our new data viz skills by taking a closer look at how Justin Timberlake’s song lyrics have changed since he went solo.

Students learn how farming has changed over time and how technology enhances the tools that farmers use enabling them to be even better stewards of the land.

Students really get into character in this lesson as they act out the parts of a script and analyze character motivations and dialogue.

This is an activity about the altitude and azimuth for the Moon. Learners will use the Sky Tonight online program to take data on the position of the Moon, plot it and see what kind of relationship the data has. This activity requires the use of a computer with Internet access, and is Sky Tonight Activity 5 in a larger resource, Space Update.