Infertility affects 1 in 8 couples worldwide. But in the last 40 years, more than 5 million babies have been born using in vitro fertilization (IVF). How does it work? Nassim Assefi and Brian A. Levine detail the science behind making a baby in a lab.

Students will practice math skills while becoming familiar with the uses of Iowa corn.

This task can be used as a quick assessment to see if students can make sense of a graph in the context of a real world situation. Students also have to pay attention to the scale on the vertical axis to find the correct match.

This lesson looks at how to explain the concepts related to processing materials using machine tools and equipment.

These problems are meant to be a progression which require more sophisticated understandings of the meaning of fractions as students progress through them.

This task provides a context for performing division of a whole number by a unit fraction. This problem is a "How many groups?'' example of division.

Tourism has grown exponentially over the past few decades, but what effect is it having on some of the world's most beautiful cities? We break down four major ways cities are being impacted by mass tourism.

Today we're going to begin our three-part unit on p-values. In this episode we'll talk about Null Hypothesis Significance Testing (or NHST) which is a framework for comparing two sets of information. In NHST we assume that there is no difference between the two things we are observing and and use our p-value as a predetermined cutoff for if something seems sufficiently rare or not to allow us to reject that these two observations are the same. This p-value tells us if something is statistically significant, but as you'll see that doesn't necessarily mean the information is significant or meaningful to you.

Understanding Science is from Berkley University focuses on teaching all about science and how it works.

Understanding Science 101 is a course that will teach you all about science and how it works.

Select "For Educators" and use the next menu to find the resources you need. Lessons, teaching guides, etc.

Cognitive psychology and neuroscience have begun to dissect the neuronal mechanisms of literacy using brain-imaging techniques. During reading acquisition, our brain circuitry recycles several of its pre-existing visual and auditory areas in order to reorient them to the processing of letters and phonemes. The nature of this "neuronal recycling" process helps explain many of the children's difficulties in learning to read. Our growing understanding of the child's brain has important consequences for how education should be optimally organized.

Understanding how the brain learns to read can help us all be more effective in teaching students to read.

To understand congenital heart defects its helpful to know how the normal heart works. (National Heart, Lung, and Blood Institute)

A corn planter has to consistently put millions of seeds at the right depth and spacing. How does it do it? Joe Ligo looks inside a 4-row Kinze planter to find out.

This is a cheat sheet on how to access CLEVER for student support teachers.

Interviewing for an entry-level job without a lot of professional experience? That’s okay! You have more experience than you think.

Our host, Averie Bishop, is here to help you craft the perfect answers so you feel confident going into your entry level interview! Whether it’s the qualities and skills you’ve gained from your educational background or even your extracurriculars–they’re all fair game to talk about and can help show what qualities you have that make you a good fit for the job.

I love cuticle oil. Whether it's right after a manicure or in between manicures, it gives your fingers a really nice shine. It moisturizes your cuticles, and it refreshes your old manicure, if there's no chipping.

I always recommend using a dropper for... I always recommend requesting or looking for your salon to have one with a dropper to avoid it touching your skin and knowing that it hasn't touched anyone else's. For your own personal use, you can use one with a brush. I also recommend that you carry one in your bag because it refreshes your manicure, as I said before. It's easier for you to apply, and then moisturize and push it back in to your cuticles. Whether you're in a cab or on the train or on the bus.

A good quality cuticle oil will literally saturate your skin around your nail, saturate the cuticles, and start to moisturize them, and give it a nice shine. It makes it look like magic. You'll see the dry skin just disappear. It should last maybe about a good two to three hours. After a hand wash, washing your hands and going to the bathroom, it should still last after that.

I recommend that you take the fingers after a manicure, after you've soaked the nails, pushed back the cuticles, shaped it, right before you apply the polish. You take the cuticle remover, this is if you're at home, and you put it with a brush around the cuticle. Go to all ten fingers.

When you come back, you take it and moisturize, and literally give yourfinger a mini massage. Push your cuticles back so that your skin has an opportunity to absorb the cuticle oil. Especially the skin around your fingers because that's where it dries out the most, especially winter time. After you've done that, you take a cotton ball with alcohol or you take an alcohol swab. You just remove the excess oil on the nail bed. This way your nail polish will adhere to your nail. Try to avoid taking the polish remover or the alcohol and getting it close to the cuticle area. You don't want to remove the cuticle oil that you just put on.

Remember, if you're in a salon it should be a dropper. They should drop it on your finger. This way the dropper doesn't touch your nail or your skin. Then ask them to take a couple of seconds and massage it into your finger.

If you're on the bus, in a cab, or at home, and you notice that your cuticles are dry, especially if you're using a harsh hand soaps at you workplace, I always recommend keeping one in your bag. They actually come in rollers, too, to avoid spilling.

You can drop it on. Right around your nail polish. It will not harm your nail polish. It actually makes your old manicure look great. Then massage it straight into your skin. The same way you would if it was right after a manicure. You push it back, and it looks great.

1. Don’t divulge private information – there is no reason to ever give out your personal information in an online forum.

2. Read the Rules – Forums typically have rules of what is allowed and what is not. Make sure you read and understand the rules. Those who break the rules may be blocked.

3. Post in the Proper Forum – Make sure you are on topic when you post in a forum.

4. Avoid making too many new threads; use the search function before asking questions - Many people before you likely had the same question, and therefore there is likely a topic on it already.
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This article from Edutopia examines "What happens when students can opt to skip tests and instead give oral presentations or create art to show what they know?"

This is a good article to get teachers thinking about assessment in new ways.

This balloon LEGO car activity is easy and simple, and it’s a fun time for the entire family! Be sure to check out the LEGO zip line for the minifigures too!

If you like to play music on your cell phone you’ll find lots to love about this wooden phone amplifier. It provides an attractive platform to cradle your phone while playing music, and it boosts the sounds level by 8-10 dB (decibels) while also distributing the sound around the room using a megaphone style sound enhancement.

As an added bonus, the project includes clever cable routing so that the amplifier can also be used as a charging station.