Find out how to create a toy that seems to defy gravity-- a cool balance trick and neat science experiment.
do you want to find informational websites to use with your class that have a bit more “child-friendly” vocabulary? use this neat trick to change the reading level of your google search results!
My oldest daughter is in 3rd grade and is working on mastering her times tables. She has a great understanding of the concept of multiplic...
Craving tacos but not feeling all the hassles of making homemade tortillas? Try this gluten-free and vegan taco pie made with a mashed potato crust.
Learning lowercase letters can be really confusing for many children, especially the letters b, d, p, and g . When you think about it, it...
The Kitchn’s Baking School Day 4: All about meringue. Join The Kitchn’s Baking School: Sign up and see all The Kitchn’s Baking School assignments In its most basic, stripped-down definition, meringue is egg whites whipped with sugar. Air is quickly whipped into the egg whites, which makes them billow up to as much as eight times in volume. Pretty neat trick, right? When sugar is added, it not only provides sweetness, but it also helps stabilize the egg whites.
A blonde driving a car became lost in a snowstorm. She didn’t panic, however, because she remembered what her dad had once told her: “If you ever get stuck in a snowstorm, just wait for a snow-plow to come by, and follow it.” Sure enough, pretty soon a snow-plow came by, and she started to...
Some everyday tricks are so useful and simple they can come in handy to more than one generation. Yet over time, they’re somehow forgotten, and they turn into what’s called “grandma’s tips.”
For those of you who couldn’t join us on Facebook this week (@spanglerscience), we’ve been working hard to provide fun and amazing at home experiences to those who have been impacted by the current events.
The lemon cuts the intense sweetness of the condensed milk perfectly and the crushed biscuits on top give a sort of upside-down-cheesecake effect.
Another math coach related to me today the story of how a student she taught had named fingers sections as something that comes in groups of threes. She took this concept and helped students use t…
Here's some mind-blowing negative image optical Illusions which tricks your eyes and your brain. In these images, look at the dot on the nose
We may earn money or products from the companies mentioned in this post. Please see policies for more information.Today’s toothpick activity is a fun little “magic” trick uses toothpicks and water. Start with 5 toothpicks, water, a straw for easy water dropping and a plate to catch the water. Carefully break the toothpicks in half (as
This is the perfect cool uncle trick for when you're out to eat with a niece or nephew. It's a pretty simple stunt to boot -- the only hard part is initially balancing the salt shaker in the salt
Portable Milk Splatter: Milk, or any liquid, is THE MOST DANGEROUS nemesis to all IT products ( laptop, phones, tv, etc) so why not give someone a heart attack with a fake milk splatter on their laptop? you'll need: - a piece of glass, or any smooth surface - white …
Står det gram istället för deciliter i receptet? Här hittar du en tabell som du kan använda för att omvandla till deciliter när du ska baka och laga utan köksvåg.
This post contains editorial samples and/or affiliate links to products I recommend. While this adds no additional cost to you, I will earn a small commission o…
Amaze your Valentine this year with a colorful DIY magic trick! They’ll be wowed as they watch the card go from black and white to color! You’ll get the free printable, plus all the ins…
I first learned his nifty little trick to help remember the unit circle last year when I was observing in a classroom at a local high school as part of my degree requirement. This wasn't something that the teacher taught, but actually something one of the students shared with her classmates (I am unsure where she learned it). I have also seen it floating around Pinterest, but I wanted to share my version because it can easily be adapted for both left-handed and right-handed people. Note: This trick was designed only to help remember the first quadrant of the unit circle but I will show you my own little trick to applying it to all of the unit circle. For this 'trick' to be most effective students should use their glove hand (you know, the hand your glove goes on in baseball/softball; the left for those who are right-handed, and the right for those who are left-handed). The below pictures shows how to hold your hands. Each one of your five fingers represents a special points on the Unit Circle: Thumb - 0° or 0π (2π) Index Finger - 30° or π/6 Middle Finger - 45° or π/4 Ring Finger - 60° or π/3 Pinky Finger - 90° or π/2 Finding Sine and Cosine: First Quadrant When finding sine and cosine remember your answer always looks like the square root of something over two (√?/2). Step one: To find the value for sine/cosine just fold down the respective finger. For example, if we wanted to find sine/cosine values for 30° or π/6 we would fold down the index finger. Step two: Now we turn our hands into an ordered pair; parentheses on the outside and a comma where the folded down finger is. So continuing with our example of 30° or π/6 we get (3,1). Step three: We must now implement what was stated before step one (√?/2), which gives us (√3/2, √1/). This simplifies to (√3/2, 1/2). Step four: Since we know on the unit circle, the ordered pairs are presented (cosine, sine) we can conclude that the sin(30°) or sin(π/6) is equal to 1/2 and the cos(30°) or cos(π/6) is equal to √3/2. Note: This does work for 0° and 90°. 0/2=0 and √4/2=2/2=1. Finding Sine and Cosine: Second Quadrant This is almost as easy as the process for Quadrant I, but with a few small changes. First things, first, we need to flip our hands (just like a reflection over the y-axis). Now each finger represents a new point on the unit circle: Pinky Finger: 90° or π/2 Ring Finger: 120° or 2π/3 Middle Finger: 135° or 3π/4 Index Finger: 150° or 5π/6 Thumb: 180° or π Now we follow steps one through three for Finding Sine and Cosine: First Quadrant. For example, if we were trying to find the sine/cosine values of 120° or 2π/3 we would get (√3/2, 1/2). Step four: Since we flipped our hands over the y-axis, we now must switch our values in our ordered pair. Thus we now have (1/2, √3/2). Step Five: Finally we must apply negative signs where appropriate for the second quadrant (the x-value of the order pair). Therefore we end up with (-1/2, √3/2) and can conclude that sin(120°) or sin(2π/3) is equal to -1/2 and cos(120°) or cos(2π/3) is equal to √3/2. Finding Sine and Cosine: Third Quadrant This is exactly the same as Finding Sine and Cosine: Second Quadrant, except for step five, we now negate both value of the ordered pair. (You also have to reflective your hand again, this time over the x-axis. Or starting from the original position, rotate 180° counter clockwise. This is an awkward position for the right handed people. Fingers will also now represent new positions on the unit circle.) Finding Sine and Cosine: Fourth Quadrant Starting from the original position, flip your hand down (reflect over the x-axis). Fingers will also now represent new positions on the unit circle. (This is an awkward position for the left handed people) Follow steps one through three for Finding Sine and Cosine: First Quadrant. Step four: Apply negative signs where appropriate for the fourth quadrant (the y-value of the order pair). Finding Tangent: Follow step one and two for Finding Sine and Cosine: First Quadrant. Going back to our example of 30° or π/6 we get (3,1). Step three: Rotate your ordered pair 90° counter clockwise and turn into a fraction. Step four: Place fraction under radical sign and simplify. Step five: Now we can conclude that tan(30°) or tan(π/6) is equal to √3/3. Congratulations if you made it to the bottom of this post. I hope that this all made sense to you. If not, please ask questions, I'm more than happy to help you understand. If you use this in your classroom, please leave a comment below; I am curious as to how your students will react.
In this blog post I am showing you a neat way to finish your amigurumi pieces. It`s a really simple trick you definitely want to use. Read more.
Try these simple paper tricks that seem like magic! All you need is a little paper, tape and scissors to wow your friends and family.
1. 74% of mothers and 70% of fathers reported preferential treatment toward one child.
An infographic for a fun post on foot reflexology by Joanna at Cup of Jo . Now I really want a foot massage.
Op zoek naar de lekkerste recepten en de beste tips voor in de keuken? Ontdek het hier: Tips & tricks: hummus zelf maken
