In our recent work on our Hearing and Sound unit, we’ve been learning about how instruments make sounds with striking, plucking, or blowing, and the students made their own instruments in class (we’ll do more extensive instrument building later in the unit). We explored instruments from around the world, and then experimented to find out how sound is transmitted through gases, liquids, and solids. Next week we get to learn about how our human ears sense sound!
We’re starting a new Science unit this month on Hearing and Sound! In this unit students will explore the nature of sound, its sources, its qualities and what it is. They will learn that sound is vibration and that changes in vibration can affect the loudness, pitch and quality of sound. We will talk about sound travel by studying what things carry sound, what things make it louder or softer, and what happens to sound when it reaches their ears. The sensitivity of human ears and those of other animals will be examined, as students learn about the safe use of this valuable sense.
In the coming weeks, students will learn to:
We capped off our bridge-building project this week! The students finished joining their beams, decks, and trusses, and we tested them in our bridge competition. There were three stages to the competition:
It’s been an exciting week in 3B as we started the culminating project of our building unit: building bridges! We’ve learned about different types of bridges and explored the design and construction of the Walterdale Bridge in Edmonton. The students are working on a challenge from the City of Edmonton to build a model bridge for a self-driving vehicle, using only glue and 150 popsicle sticks. So far they’ve constructed the beams and deck of their bridges, and next week we’ll be doing some railing and truss work. We have our very own model self-driving vehicle that the bridge will need to support, and a model of the river bank of the North Saskatchewan River. There will definitely be some great contenders for the Edmonton Self-Driving Vehicle Bridge!
3B has been hard at work this week building model playgrounds! One of the outcomes for this unit is that students will use a variety of materials and techniques to design, construct, and test structures that are intended to serve as models of particular living things, objects, or buildings. Students had to carefully consider materials, aesthetics, and function as they built, and the result was many creative and fun playgrounds! You can take a look below at some of the playgrounds that were built in our class.
This week we started our new Science unit on Testing Materials and Designs! Miss Gartner is getting the students all set up as contractors, and we’re feeling very ready to tackle this new mission in 3B since we got a business license and our own individual contractor pencils!
In this unit, students will study the materials and designs used in construction tasks. They will compare paper, clay, cardboard, styrofoam, and other available materials to see which are the strongest—which ones resist bending, crushing, or tearing—and which are the most easily shaped and joined. They will test different shapes and thicknesses to find out what makes a structure strong and stable and to find out how much material is needed. Students will learn that many factors are considered the materials and designs are selected and that different tasks may require different materials and designs.
In the coming weeks, students will learn to:
In grade three, we learn about measuring height in centimetres (and metres) and we also learn about the life cycles of plants (and animals). To get started on these learning outcomes, this week we got some plants in our classroom. We will be tracking the growth of these plants over time and observing changes as their life cycles progress. The students especially enjoyed naming their plants, and we are curious to see how the plants grow in the weeks ahead!
On our walk to the Participark this week, we had the important task of collecting soil samples to examine for our Rocks and Minerals unit. We found bugs, mushrooms, plant debris, and a variety of rocks in the soil, and found many smaller components in our samples when we took a closer look back in class. Our class learned about different materials that make up soil, namely minerals, air, water, and organic material, and students enjoyed contrasting the textures, appearances, and components of the peat moss, clay, and sand that we compared in class.
Mrs. Barker is a grade three teacher at Millgrove School. She loves science and reading, and lives in a little brick house with Mr. Barker and her kids Jack and Ellie.