What were some new learnings, something that you may have already known, or some questions you still have? - I learned that by the end of 2nd Grade, students need to understand the different kinds of matter exist (e.g., wood, metal, water), and many of them can be either solid or liquid, depending on temperature. Matter can be described and classified by its observable properties (e.g., visual, aural, textural), by its uses, and by whether it occurs naturally or is manufactured. Different properties are suited to different purposes. A great variety of objects can be built up from a small set of pieces (e.g., blocks, construction sets). Objects or samples of a substance can be weighed, and their size can be described and measured. (Boundary: volume is introduced only for liquid measure.)
What preconceptions do you anticipate your students will have about topics found in this standard? - When water boils and bubbles, the bubbles are air, oxygen or hydrogen, or heat.
Steam is hot air.
When steam is no longer visible it becomes air.
Water in an open container is absorbed by the container, disappears, changes into air, or dries up and goes into the air.
Ice molecules are colder than water molecules.
What are some ways you plan on addressing these preconceptions? - Working with the water cycle in elementary school can reduce this problem.