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Hotchalk Global

news & tips for teachers

The Science of Teaching

61-80 of 101

A Few Thoughts on Assessment

June 6th, 2010

Most of us are so busy grading assessments that we seldom have time to fix what might not be working in each assessment so that next time we test over a unit or chunk of content we have a much better device …

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The Well Stocked Elementary Science Classroom

May 25th, 2010

My Father wanted a new chair and being a Depression Era baby he wanted to get one for a very low price. So, I scheduled a little garage sale shopping in my week. This got me thinking about an old course I …

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National Lab Day

May 20th, 2010

May 12th was National Lab Day and while its name seems to mean one day it is actually an ongoing project that has some real value to those of us who teach science. There are some excellent resources and some ongoing connections …

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Oil Spill

May 11th, 2010

There is no way to put a positive face on the disaster looming in the Gulf of Mexico with the BP oil disaster. We can use it as a teachable moment as the event will likely last well into the summer and …

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Space Day

May 4th, 2010

NASA and their budget cuts has been a news topic this week. Not many of my students are tracking the changes to the US space program but those of us who sat spellbound while Neil Armstrong walked on the moon may view …

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Iceland Volcano

April 29th, 2010

From the blogs of this last 6 months it seems I have a fondness for earth science. That is a bit true but the current events in Iceland gave us all a teachable moment that was simply too good to pass up. …

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Earth Day

April 19th, 2010

Happy Earth Day! This week folks around the globe will celebrate the 40th Earth Day. A quick search will show you what might be going on in your city. There should be some activities that you may want to participate in with …

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T-shirt chromatography

April 13th, 2010

  The year is going to come to a close pretty soon for many. For those in the Midwest or east the year may be extended due to snow days. For those who will be in school longer you may need a …

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Growing New Scientists

April 6th, 2010

Good science teachers are a curious lot. We are liberal and conservative, all shapes, sizes, ethnic groups and all sort of crazy. But, one thing we all share is a passion for out subject. We eat dream and sleep science and have …

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Fantastic Plastic

March 29th, 2010

Spring is here and there are a host of clean-up projects going on in elementary classes in my city. We did help at a local lake and the volume of plastic we collected filled 3 trucks. Several years back that prompted me …

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Science Timelines

March 22nd, 2010

We tend to take for granted the science that has been with us for over a decade. Most kids cannot imagine life without refrigeration or TV. However, most of those inventions are relative newcomers in the technological timeline. I am old enough …

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Reasons for The Seasons

March 18th, 2010

Spring has finally made a guest appearance in most parts of the country. That is an attention grabber for any kids who have lived through what is the 9th coldest winter in recorded history for the USA. So, to capitalize on that …

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Adhesive Science

March 10th, 2010

There is a whole branch of chemistry and materials science that deals with adhesives. If you had a degree in chemistry you could specialize in that field. What we take for granted on one side of tape is actually pretty rich with …

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When the Earth Shakes

March 1st, 2010

On Saturday morning miles off the coast of Chile and 22 miles under the surface of the earth there was a shift in the plates that form the boundaries of our planet. This shift released some pent up energy, much like snapping …

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Bird Watching in Winter

February 22nd, 2010

Outside my home and classroom the birds are slowly starting to return. It is easier to see them against the backdrop of snow that still remains from the winter storms. The kids in your classroom will be anxious to turn their attention …

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Famous Scientists

February 18th, 2010

Many times we insert a famous scientist into our curriculum to satisfy some state or district level requirement. The students learn about Einstein, Franklin, Galileo or maybe Marie Curie. However, there are thousands of others who had contributions that just might ignite …

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What, More Snow?

February 10th, 2010

It is winter and if you live in the Midwest or the east you are about ready for spring to melt the 3 feet of snow outside your door and watch the bulbs bloom.  But, the long term forecast you we may …

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The Olympics

February 1st, 2010

  The Olympics are here soon and the excitement in my classes is electric. How could I not capitalize on that enthusiasm? So, for this week’s blog it is all things scientific about the Olympics. First, I love alpine skiing. There is …

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Calorie Science

January 25th, 2010

January is usually a time when people begin diets and try to work off the extra cookies and snacks they ate over the holidays. Students are interested because either they are looking more closely at their own nutrition or their parents are …

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Disaster Science

January 18th, 2010

The catastrophe in Haiti is going to be in the news for months. Your students and mine will be paying attention and interested in what is going on. Many schools have organized fundraising activities. For those reasons and hundreds of others it …

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61-80 of 101