December 18

Empathy

At the end of the fourth grade weather lab, I wanted to do a brief lesson about empathy which is the ability to understand and share the feelings of others. I recently heard on a podcast that empathy is often the missing piece from science and engineering classrooms, while the ultimate goal of these disciplines is to help others or the environment. I explained to my students that I have greater empathy for my mom’s arthritis, since I have fractured my wrist. I wanted them to understand how difficult it is to function with only one hand, so I set-up some tasks for them to complete with their non-dominate hand. As they struggled with these everyday chores, they became innovative, and the struggle became productive.

Tasks:
Write Merry Christmas, fold the paper, and put the paper in an envelope.
Tie a ribbon around the box and tie a bow.
Open a water bottle and take off the wrapper around a plastic fork.
Tear off four pieces of tape.
Cut out a Christmas tree.

 

December 18

Ice Structures

PreFirst engineers (The Great 8) were tasked with constructing “ice” structures using various pieces of Styrofoam.

Although this seems like a simple task, we were meeting the following standards:

  • Identify Styrofoam, a manmade material, that doesn’t decompose quickly and cannot be recycled. Discuss ways to reuse Styrofoam and ways to reduce its use.
  • Strengthen fine motor and eye hand coordination skills.
  • Investigate physical properties of materials.
  • Develop creativity and communication skills.
  • Name and construct 3D shapes (pyramids, cubes, and prisms) and explore the number of vertices and sides in each.
  • Problem solve and develop critical thinking skills.
  • Explore balance.
  • Use the Design Process-Identify Problem, Imagine, Plan, Create, and Improve.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Save Styrofoam from shipping boxes and build with it at home.

December 13

Save the Gingerbread Cookie!

The best teaching happens when you weave science into other subject areas and you ask your students to solve a real problem. Kindergarten engineers applied their knowledge of sink and float to construct boats to help the gingerbread cookie cross the river safely. Click here to review the folktale of the Gingerbread Man.

Before they began work, we hypothesized what might happen to a cookie if we placed it in water. The ginger snap we tested broke into pieces and almost disappeared in the water which helped us understand why the cookie needed to stay out of the water.  Many scientists wanted to taste the cookie water! Make cookie water at home. Do all cookies fall apart in the water? What if you tried a different liquid?

Did you know if you crumble aluminum foil above water, it will float, but if you crumble it under the water, it will sink? Why? We shared our ideas.

We looked at boats to see what was similar about their designs. This was a hard task. They wanted to tell me how they differed, rather than common attributes.

If they were successful keeping a paper gingerbread cookie dry, then we tested to see if their boats could hold the heavier gingerbread cookie. Click here  and here for more information about constructing boats with young engineers. Through this activity, we discovered that the shape of an object impacts how well an object floats. Aluminum foil, popsicle sticks, rubber bands, and straws were available for their use. They employed the Design Process (Define the Problem, Imagine, Plan, Create, Test, Improve) naturally as they worked.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

I encouraged these young engineers to construct boats at home for Lego characters or plastic animals and to try different designs and materials. A great bathtub activity!

December 4

Santa Ziplines

This lab was all about engineering with a Christmas twist! Second grade engineers learned first hand about the forces of gravity and friction when they constructed ziplines for Santa. Their goal was to send Santa from the second floor to the first safely through the rotunda. We didn’t want him to fall out, turn upside down, or get stuck midway. Although he could have a seatbelt or a chair, he could not be tied to his zipline. Collaborative teams had a choice of four tables filled with possible materials. After constructing the ziplines, we tested them. If there had been additional time, we would have compared design choices, discussed results, improved our designs, and retested them to complete the Engineer Design Process. Our zipline was fishing line, but how might our results have changed if we used a zipline of twine or yarn? Make one at home and send me a photo or video.


Ziplines from Mrs. Harwell’s Class:

November 12

Tipi Engineering

Second graders have been studying the Cherokee and Creek nations in their homerooms. I wanted to do a STEM lab to reinforce the major concepts that they have been learning, and I believe multidisciplinary learning is a best practice in education. The two big ideas were: Native people used the resources that were available to them and the area in which they lived determined their culture. We briefly discussed the Native Americans who lived in the Eastern woodlands, plains, and Southwest, but our lab focused on how the people groups who lived on the plains constructed tipis – an amazing engineering feat! The people who inhabited the Great Plains were nomadic and followed the buffalo. Click here to watch an informative video. Click here to read an article about tipis.

This proved to be a difficult task, especially since we were not working on the ground. As we faced challenges, we collaborated to overcome them, and failed forward. We learned that the shape of a tipi is a cone. We cut a circle to form our cones and folded the circle twice to find the center. We drew a smaller circle around the center and cut a slit to it. One of my students compared this process to a Christmas tree skirt-a useful analogy!


Teams chose their own sticks and formed a tripod first.

October 8

Blossoming Flowers

Science can be big and explosive or it can be as simple as the following experiment to develop that sense of wonder and curiosity. After presenting background information about how paper is made, we reviewed why some objects sink and others float. Then, we reviewed the Scientific Method. In this investigation, we pondered what would happen if we folded the petals of a paper flower toward the center and dropped the flower onto the surface of the water. The flowers appeared to magically open. You need to see this in action. Click here to watch a video. What forces the flower to bloom? I repeated the investigation and changed some variables – flowers of various sizes, flowers cut from tagboard, copy paper, and construction paper, and petals folded in different sequences – to see how our results might change.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Afterwards, we were engineers and made our own paper designs that would open when dropped in water. I saw a large variety of ideas, including stars, hands, butterflies, and turtles. We experienced mixed results and learned from each design.

September 30

Balance

PreK scientists have been studying squirrels. How do squirrels keep from falling when they are jumping from tree to tree? That discussion led us to the topic of balance.

We tried to balance on one foot and then the other. We even tried to stand on one foot with our eyes closed! Can you balance a book on your head?

I challenged my youngest physicists to balance a variety of other objects. They especially enjoyed balance bird. How does it balance on a pencil eraser and the tip of your finger?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

At the end of lab, we worked in collaborative pairs and used balance to build structures from a model. As we balanced the blocks, we strengthened our eye hand coordination and visual perception skills. Try this at home.

To exit the room, we walked across a balance beam.
Click here to watch a video about how to keep your bike in balance.

A big thank you to Mrs. Lilge for helping me take photos today!

August 20

STEM Challenge

Second grade engineers were tasked with building the tallest possible, freestanding tower with 15 pipe cleaners. Before they began work, we looked at towers around the world and discussed decisions that they would need to consider while planning. After collaborating with their engineer team, they began work.

But wait, we received an announcement from headquarters. Wow, this made our work much more difficult!

We were relieved to receive this communication, but now it was tough to collaborate.

After this final note, we completed our towers. This was not an easy assignment!

These engineers constructed the tallest tower. They used some solid shapes (cube and pyramid) in their design.

This activity came from Vivifystem.

July 23

Western Theme

Every school year, our KR Lower School chooses a theme. For the 2020-2021 school year, we selected a western theme-Blazing New Trails. I constructed cardboard cacti using the attachment methods that I taught my engineers last year. Click here to see that post. I used the slot and L-brace techniques. Painting and adding flowers will be next.